0001213900-25-037748 | 10-K | XBRL Viewer

$ 3,841

$ 3,823

102,561

14,958

Level 1 [Member]

3,841

3,823

167

Level 2 [Member]

135

Level 3 [Member]

102,561

14,656

Restricted cash [Member]

Restricted cash [Member] | Level 1 [Member]

3,841

3,823

Restricted cash [Member] | Level 2 [Member]

3,841

3,823

Restricted cash [Member] | Level 3 [Member]

July 2024 derivative liability [Member]

July 2024 derivative liability [Member] | Level 1 [Member]

^[1]

34,690

July 2024 derivative liability [Member] | Level 2 [Member]

^[1]

July 2024 derivative liability [Member] | Level 3 [Member]

^[1]

September 2024 derivative liability [Member]

^[1]

34,690

September 2024 derivative liability [Member] | Level 1 [Member]

^[1]

62,432

September 2024 derivative liability [Member] | Level 2 [Member]

^[1]

September 2024 derivative liability [Member] | Level 3 [Member]

^[1]

Forward purchase agreements [Member]

^[1]

62,432

Forward purchase agreements [Member] | Level 1 [Member]

3,494

^[2]

3,831

^[1]

Forward purchase agreements [Member] | Level 2 [Member]

^[2]

^[1]

Forward purchase agreements [Member] | Level 3 [Member]

^[2]

^[1]

3,494

^[2]

3,831

^[1]

Public warrants [Member]

Public warrants [Member] | Level 1 [Member]

862

167

Public warrants [Member] | Level 2 [Member]

167

Public warrants [Member] | Level 3 [Member]

Private placement warrants [Member]

862

Private placement warrants [Member] | Level 1 [Member]

627

122

Private placement warrants [Member] | Level 2 [Member]

Private placement warrants [Member] | Level 3 [Member]

122

Working capital warrants [Member]

627

Working capital warrants [Member] | Level 1 [Member]

Working capital warrants [Member] | Level 2 [Member]

Working capital warrants [Member] | Level 3 [Member]

SAFE Agreement with related party [Member]

SAFE Agreement with related party [Member] | Level 1 [Member]

384

SAFE Agreement with related party [Member] | Level 2 [Member]

SAFE Agreement with related party [Member] | Level 3 [Member]

Carlyle Warrants [Member]

$ 384

Carlyle Warrants [Member] | Level 1 [Member]

9,515

Carlyle Warrants [Member] | Level 2 [Member]

Carlyle Warrants [Member] | Level 3 [Member]

Replacement warrants [Member]

9,515

Replacement warrants [Member] | Level 1 [Member]

1,310

Replacement warrants [Member] | Level 2 [Member]

Replacement warrants [Member] | Level 3 [Member]

Goodwill and Other Intangible Assets [Abstract]

$ 1,310

[1]	A portion of these balances are with related parties. Refer to Note 15 – Borrowings and Derivative Liabilities for details.
[2]	A portion of these balances are with related parties. Refer to Note 6 – Forward Purchase Agreements for details.

Goodwill and Other Intangible Assets

12 Months Ended

Dec. 29, 2024

Goodwill and Other Intangible Assets

(8) Goodwill and Other Intangible Assets

On September 30, 2024, the Company completed the SunPower Acquisition. Goodwill presented on the Company’s consolidated financial statements represents Goodwill recognized from the SunPower Acquisition. The goodwill recognized was assigned to the Residential Solar Installation and New Homes Business reportable segments as $18.3 million and $0.2 million, respectively. The Company performed a qualitative assessment of goodwill and determined that at the acquisition date and the date at which the Company performed an impairment analysis, there were no relevant events or circumstances that would result in the reportable segment being less than its carrying amount. The Company concluded that as of December 29, 2024, there is no impairment.

Other Intangible Assets

The following table represents our other intangible assets with finite useful lives as of December 29, 2024 (in thousands):

	Gross Carrying Amount		Accumulated Amortization			Net Book Value
Trademark – Blue Raven Solar	$	8,400	$	(210	)	$	8,190
Trademark – SunPower		5,200		(130	)		5,070
Developed technology		4,500		(375	)		4,125
Total	$	18,100	$	(715	)	$	17,385

Aggregate amortization expense for intangible assets was $0.7 million and zero for the fiscal years ended December 29, 2024, and December 31, 2023, respectively. Amortization expense is recognized in general and administrative expenses in the consolidated statement of operations. No impairment loss was recorded for intangible assets for the fiscal year 2024. The weighted average remaining life of these intangible assets is 8.1 years as of December 29, 2024.

The estimated amortization expense related to intangible assets with finite useful lives is as follows (in thousands):

Fiscal Year	Estimated Amortization Expense
2025	$	2,860
2026		2,860
2027		2,485
2028		1,360
2029		1,360
Thereafter		6,460
Total	$	17,385

Common Stock

12 Months Ended

Dec. 29, 2024

Common Stock [Abstract]

Common Stock

(13) Common Stock

The Company’s authorized capital stock comprises 1,000,000,000 shares of common stock and 10,000,000 shares of preferred stock as of December 29, 2024. No preferred stock has been issued and none are outstanding as of December 29, 2024.

Common Stock Purchase Agreements

On December 18, 2023, the Company entered into separate common stock purchase agreements (the “Purchase Agreements”) with the Rodgers Massey Freedom and Free Markets Charitable Trust and the Rodgers Massey Revocable Living Trust (each a “Purchaser”, and together, the “Purchasers”). Pursuant to the terms of the Purchase Agreements, each Purchaser purchased 1,838,235 shares of common stock of the Company, par value $0.0001, (the “Shares”), at a price per share of $1.36, representing an aggregate purchase price of $5.0 million. The Purchasers paid for the shares in cash. Thurman J. Rodgers is a trustee of each Purchaser, Executive Chairman of the Company’s board of directors and Chief Executive Officer of the Company (“Rodgers” or “CEO”).

On July 16, 2024, the Company entered into a common stock purchase agreement with White Lion Capital, LLC (“White Lion”), as amended on July 24, 2024 (“White Lion SPA”), and a related registration rights agreement for an equity line of credit financing facility. Pursuant to the White Lion SPA, the Company has the right, but not the obligation, to require White Lion to purchase, from time to time up to $30 million in aggregate gross purchase price of newly issued shares of the Company’s common stock, subject to the caps and certain limitations and conditions set forth in the White Lion SPA, including terms that restrict the ability of the Company to issue shares of common stock to White Lion that would result in White Lion beneficially owning more than 9.99% of the Company’s outstanding common stock.

On August 14, 2024, the Company entered into Amendment No. 2 to the White Lion SPA (collectively with the White Lion SPA “White Lion Amended SPA”). The White Lion Amended SPA provides that the Company may notify White Lion to exercise the Company’s right to sell shares of its common stock by delivering an Hour Rapid Purchase Notice. If the Company delivers an Hour Rapid Purchase Notice, the Company shall deliver to White Lion shares of common stock not to exceed the lesser of (i) five percent of the Average Daily Trading Volume on the date of an Hour Rapid Purchase Notice and (ii) 100,000 shares of common stock. The closing of the transactions under an Hour Rapid Purchase Notice will occur one Business Day following the date on which the Hour Rapid Purchase Notice is delivered. At such closing, White Lion will pay the Company the Hour Rapid Purchase Investment Amount equal to the number of shares of common stock subject to the applicable Hour Rapid Purchase Notice multiplied by the lowest traded price of the Company’s common stock during the one-hour period following White Lion’s consent to the acceptance of the applicable Hour Rapid Purchase Notice. Under the White Lion Amended SPA, the Company issued a total of 2.9 million shares of common stock for net proceeds of $6.7 million in the fiscal year ended December 29, 2024.

The Company has reserved shares of common stock for issuance related to the following:

	As of
	December 29,		December 31,
	2024		2023
Common stock warrants		31,670,265		27,637,266
Employee stock purchase plan		2,628,996		2,628,996
Stock options and RSUs, issued and outstanding		11,979,368		11,774,743
Stock options and RSUs, authorized for future issuance		2,577,895		3,850,462
SAFE Agreement		2,750,000		—
Forward purchase agreements		6,720,000		—
Convertible notes		58,579,636		—
Total shares reserved		116,906,160		45,891,467

The entire disclosure for equity.

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Schedule of Financial Performance through Reportable Segments

Segment Information (Tables)

12 Months Ended

Dec. 29, 2024

Segment Information [Abstract]

This segment performs solar system installations for new home builders.

	Fiscal Year Ended December 29, 2024
(in thousands)	Residential Solar Installation			New Homes Business		Total
Operating revenues	$	67,460		$	41,282	$	108,742

Less:
Cost of revenues		45,266			23,974		69,240
Sales commissions		23,388			1,202		24,590
Sales and marketing		6,827			—		6,827
General and administrative⁽¹⁾		9,805			3,232		13,037
Operating income (loss)		(17,826	)		12,874		(4,952	)

Reconciliation of segment loss from continuing operations before income taxes:
Unallocated amounts:
General corporate expense		—			—		(63,557	)
Interest expense		—			—		(16,223	)
Interest income		—			—		19
Other income (expense), net		—			—		7,932
Gain on troubled debt restructuring		—			—		22,337
Loss from continuing operations before taxes	$	—		$	—	$	(54,444	)

⁽¹⁾

For the year ended December 29, 2024, depreciation and amortization expense was $2.6 million and $0.1 million for the Residential Solar Installation and New Homes Business reportable segments, respectively.

	Fiscal Year Ended December 31, 2023
(in thousands)	Residential Solar Installation			New Homes Business		Total
Operating revenues	$	87,616		$	—	$	87,616

Less:
Cost of revenues		69,828			—		69,828
Sales commissions		31,127			—		31,127
Sales and marketing		6,920			—		6,920
General and administrative⁽¹⁾		32,099			—		32,099
Operating income (loss)		(52,358	)		—		(52,358	)

Reconciliation of segment loss from continuing operations before income taxes:
Unallocated amounts:
General corporate expense		—			—		—
Interest expense		—			—		(14,033	)
Interest income		—			—		36
Other income (expense), net		—			—		(29,862	)
Gain on troubled debt restructuring		—			—		—
Loss from continuing operations before taxes	$	—		$	—	$	(96,217	)

Schedule of Assets by Segment

Assets by segment are as follows (in thousands):

	As of
	December 29,		December 31,
	2024		2023
Residential Solar Installation	$	66,145	$	47,322
New Homes Business		78,321		—
Total assets	$	144,466	$	47,322

Business Combination - Schedule of Pro Forma (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2024	Dec. 31, 2023
Schedule of Pro Forma [Abstract]
Pro forma revenue	$ 381,860	$ 697,651
Pro forma net loss from continuing operations	$ (283,122)	$ (320,589)

Insider Trading Policies and Procedures	12 Months Ended
Insider Trading Policies and Procedures	Dec. 29, 2024
Insider Trading Policies and Procedures [Line Items]
Insider Trading Policies and Procedures Adopted	true

Reverse Recapitalization - Schedule of Reconciles Elements of the Merger (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($)
Schedule of Reconciles Elements of the Merger [Line Items]
Less: Cash payment	$ (1,170)
Net cash proceeds upon the closing of the Mergers and PIPE financing	19,658
Net contributions from the Mergers and PIPE financing upon closing	9,523
PIPE [Member]
Schedule of Reconciles Elements of the Merger [Line Items]
Cash proceeds	12,800
FACT [Member]
Schedule of Reconciles Elements of the Merger [Line Items]
Less: Cash payment	(10,680)
Less: non-cash net liabilities assumed from FACT	(10,135)
FPA [Member]
Schedule of Reconciles Elements of the Merger [Line Items]
Less: Cash payment	(17,831)
FACT [Member]
Schedule of Reconciles Elements of the Merger [Line Items]
Cash proceeds	$ 36,539

Property and Equipment, Net (Tables)

12 Months Ended

Dec. 29, 2024

Property and Equipment, Net [Abstract]

Schedule of Property and Equipment, Net

Property and equipment, net consist of the following (in thousands):

	As of
	December 29,			December 31,
	2024			2023
Internal-use software	$	420		$	6,993
Manufacturing equipment		73			131
Furniture and equipment		724			96
Vehicles		5,174			—
Leasehold improvements		18			708
Total property and equipment		6,409			7,928
Less: accumulated depreciation and amortization		(916	)		(3,611	)
Total property and equipment, net	$	5,493		$	4,317

Common Stock (Details) - USD ($) $ / shares in Units, $ in Thousands			12 Months Ended
	Jul. 16, 2024	Dec. 18, 2023	Dec. 29, 2024	Aug. 14, 2024	Dec. 31, 2023
Common Stock [Line Items]
Common stock, shares authorized			1,000,000,000		60,000,000
Preferred stock issued
Preferred stock outstanding
Common stock, par value (in Dollars per share)			$ 0.0001		$ 0.0001
Aggregate purchase price (in Dollars)		$ 5,000
Newly issued shares (in Dollars)			$ 7,144
Shares of common stock			73,784,645		49,065,361
Total issued (in Dollars)			$ 14		$ 7
Preferred Stock [Member]
Common Stock [Line Items]
Preferred stock, shares authorized			10,000,000
Common Stock [Member]
Common Stock [Line Items]
Newly issued shares (in Dollars)
Common stock outstanding, percentage	9.99%
Net proceeds (in Dollars)			6,700
Common Stock [Member] \| White Lion Capital, LLC [Member]
Common Stock [Line Items]
Newly issued shares (in Dollars)	$ 30,000
Common Stock [Member] \| Hour Rapid [Member]
Common Stock [Line Items]
Shares of common stock				100,000
Total issued (in Dollars)			$ 2,900
Purchase Agreement [Member]
Common Stock [Line Items]
Shares purchase		1,838,235
Common stock, par value (in Dollars per share)		$ 0.0001
Aggregate purchase price per share (in Dollars per share)		$ 1.36

Commitments and Contingencies

12 Months Ended

Dec. 29, 2024

Commitments and Contingencies [Abstract]

Commitments and Contingencies

(19) Commitments and Contingencies

Leases

The Company leases its facilities under non-cancelable operating lease agreements. The Company leases vehicles under finance lease agreements. Operating and financing lease activity for the fiscal years ended December 29, 2024 and 2023 is as follows (dollars in thousands):

	Fiscal Year Ended
	December 29,			December 31,
	2024			2023
Lease cost
Finance lease cost:
Amortization of right-of-use assets	$	553		$	—
Interest on lease liabilities		77			—
		630			—
Operating lease cost		1,003			1,380
Variable lease cost		-			342
Total lease cost	$	1,633		$	1,722
Other information
Cash paid for amounts included in the measurement of lease liabilities
Finance leases	$	551		$	—
Operating leases		1,039			1,047
Weighted-average remaining lease term (in years):
Finance leases		2			—
Operating leases		2.5			2.48
Weighted-average discount rate:
Finance Leases		7	%		—	%
Operating leases		9.5	%		15.57	%

Future minimum lease payments under non-cancellable leases are as follows as of December 29, 2024 (in thousands):

	Finance Leases			Operating Leases
Fiscal year ending
2025	$	2,285		$	1,687
2026		1,749			1,605
2027		247			801
Total undiscounted liabilities		4,281			4,093
Less: imputed interest		(352	)		(413	)
Total lease liabilities	$	3,929		$	3,680

As of December 29, 2024, the Company’s consolidated balance sheet classified the current portion of finance lease liabilities of $2.1 million and operating lease liabilities of $1.4 million within Accrued expenses and other current liabilities and the noncurrent portion of finance lease liabilities of $1.8 million and operating lease liabilities of $2.3 million within Other long-term liabilities.

Warranty Provision

Activity by period relating to the Company’s warranty provision was as follows (in thousands):

	Fiscal Year Ended
	December 29,			December 31,
	2024			2023
Warranty provision, beginning of period	$	4,849		$	3,981
Warranty liability from Business Combination		582			—
Accruals for new warranties issued		695			2,968
Settlements		(158	)		(2,100	)
Warranty provision, end of period	$	5,968		$	4,849
Warranty provision, current	$	2,531		$	1,433
Warranty provision, noncurrent		3,437			3,416

Indemnification Agreements

From time to time, in its normal course of business, the Company may indemnify other parties, with which it enters into contractual relationships, including customers, lessors, and parties to other transactions with the Company. The Company may agree to hold other parties harmless against specific losses, such as those that could arise from breach of representation, covenant or third-party infringement claims. It may not be possible to determine the maximum potential amount of liability under such indemnification agreements due to the unique facts and circumstances that are likely to be involved in each particular claim and indemnification provision. Historically, there have been no such indemnification claims. In the opinion of management, any liabilities resulting from these agreements will not have a material adverse effect on the business, financial position, results of operations, or cash flows of the Company.

Legal Matters

The Company is a party to various legal proceedings and claims which arise in the ordinary course of business. The Company records a liability when it is probable that a loss has been incurred and the amount of the loss can be reasonably estimated. If the Company determines that a loss is reasonably possible and the loss or range of loss can be reasonably estimated, the Company discloses the reasonably possible loss. The Company adjusts its accruals to reflect the impact of negotiations, settlements, rulings, advice of legal counsel and other information and events pertaining to a particular case. Legal costs are expensed as incurred. Although claims are inherently unpredictable, the Company is not aware of any matters that may have a material adverse effect on the Company’s business, financial position, results of operations, or cash flows. The Company has recorded $7.7 million and $7.7 million as a loss contingency in accrued expenses and other current liabilities on its consolidated balance sheets as of December 29, 2024 and December 31, 2023, respectively.

SolarPark Litigation

In January 2023, SolarPark Korea Co., LTD (“SolarPark”) demanded approximately $80.0 million during discussions between the Company and SolarPark. In February 2023, the Company submitted its statement of claim seeking approximately $26.4 million in damages against SolarPark. The ultimate outcome of this arbitration is currently unknown and could result in a material liability to the Company. However, the Company believes that the allegations lack merit and intends to vigorously defend all claims asserted. No liability has been recorded in the Company’s consolidated financial statements as the likelihood of a loss is not probable at this time.

On March 16, 2023, SolarPark filed a complaint against Solaria and the Company in the U.S. District Court for the Northern District of California (“the court”). The complaint alleges a civil conspiracy involving misappropriation of trade secrets, defamation, tortious interference with contractual relations, inducement to breach of contract, and violation of California’s Unfair Competition Law. The complaint indicates that SolarPark has suffered in excess of $220.0 million in damages.

On May 11, 2023, SolarPark filed a motion for preliminary injunction to seek an order restraining the Company from using or disclosing SolarPark’s trade secrets, making or selling shingled modules other than those produced by SolarPark, and from soliciting solar module manufacturers to produce shingled modules using Solaria’s shingled patents. On May 18, 2023, the Company responded by filing a motion for partial dismissal and stay. On June 1, 2023, SolarPark filed an opposition to the Company’s motion for dismissal and stay and a reply in support of their motion for preliminary injunction. On June 8, 2023, the Company replied in support of its motion for partial dismissal and stay. On July 11, 2023, the court conducted a hearing to consider SolarPark and the Company’s respective motions. On August 3, 2023, the court issued a ruling, which granted the preliminary injunction motion with respect to any purported misappropriation of SolarPark’s trade secrets. The court’s ruling does not prohibit the Company from producing shingled modules or from utilizing its own patents for the manufacture of shingled modules. The court denied SolarPark’s motion seeking a defamation injunction. The court denied the Company’s motion to dismiss and granted the Company’s motion to stay the entire litigation pending the arbitration in Singapore. On September 1, 2023, the Company filed a Limited Notice of Appeal to appeal the August 2023 order granting SolarPark’s motion for preliminary injunction. On September 26, 2023, Solaria filed a Notice of Withdrawal of Appeal and will not appeal the Court’s Preliminary Injunction Order. Between August 2023 and March 2024, the parties were engaged in discovery negotiations and the Company produced documents to SolarPark. The Company produced its last set of documents on March 14, 2024. Since then, SolarPark has been reviewing the documents, and the case has remained stayed.

No liability has been recorded in the Company’s consolidated financial statements as the likelihood of a loss is not probable at this time.

Siemens Litigation

On July 22, 2021, Siemens Government Technologies, Inc. (“Siemens Government Technologies”) filed a lawsuit against Solaria Corporation in Fairfax Circuit Court (the “Court”) in Fairfax, Virginia. On July 27, 2023, Siemens Government Technologies, moved to amend the complaint to add Siemens Industry Inc. as a co-plaintiff. This motion was granted on August 25, 2023. On October 23,2023, Siemens Government Technologies and Siemens Industry Inc. (collectively, “Siemens”) and Solaria Corporation stipulated to add Solar CA, LLC as a co-defendant. Solaria Corporation and Solar CA, LLC (collectively, the “Subsidiaries”) are both wholly-owned subsidiaries of Complete Solaria, Inc. In the lawsuit, Siemens alleged that the Subsidiaries breached express and implied warranties under a purchase order that Siemens placed with the Subsidiaries for a solar module system. Siemens claimed damages of approximately $6.9 million, inclusive of amounts of the Subsidiaries’ indemnity obligations to Siemens, plus attorneys’ fees.

On February 22, 2024, the Court issued an order against the Subsidiaries which awarded Siemens approximately $6.9 million, inclusive of the amounts of the Subsidiaries’ indemnity obligations to Siemens, plus attorney’s fees, the amount of which would be determined at a later hearing. On March 15, 2024, Siemens filed a motion seeking to recover $2.67 million for attorneys’ fees, expenses, and pre-and post-judgment interest. The Company opposed Siemens’ motion for attorneys’ fees, expenses, and pre- and post-judgment interest on April 5, 2024. On June 17, 2024, the Court entered a final order which awarded Siemens a total of $2.0 million in attorneys’ fees and costs. The Company has appealed these judgments.

In addition to the above, on August 19, 2024, Siemens applied for the enforcement to a sister state judgment in the Superior Court of Alameda, California and the court entered a judgement in favor of Siemens. On December 9, 2024, Siemens moved to amend the judgment to add Complete Solaria, Inc. as a judgement debtor. The subsidiaries opposed the Siemens motion. The court heard the motion by submission on April 3, 2025, but has not yet issued a ruling.

The Company recognized $6.9 million as a legal loss related to this litigation in 2023, and in 2024, the Company recorded an additional accrual for $2.0 million for attorneys’ fees, expenses, and pre-judgment interest, in accrued expenses and other current liabilities within its consolidated balance sheet as of December 29, 2024. This legal loss was recognized in loss from discontinued operations, net of tax on the consolidated statements of operations and comprehensive loss. The Company recorded a liability of $6.9 million as a legal loss related to this litigation, excluding amounts for attorneys’ fees and costs, in accrued expenses and other current liabilities within its consolidated balance sheets at each of December 29, 2024 and December 31, 2023.

Letters of Credit

The Company had $3.5 million of outstanding letters of credit related to normal business transactions as of December 29, 2024. These agreements require the Company to maintain specified amounts of cash as collateral in segregated accounts to support the letters of credit issued thereunder. As discussed in Note 2 – Summary of Significant Accounting Policies, the cash collateral in these restricted cash accounts was $3.8 million as of December 29, 2024 and December 31, 2023, respectively.

Business Combination

12 Months Ended

Dec. 29, 2024

Business Combination [Abstract]

Business Combination

(4) Business Combination

SunPower Acquisition

On September 30, 2024, the Company completed the acquisition of certain assets and assumption of certain liabilities of SunPower for an aggregate cash consideration paid of $54.5 million, net of $1.0 million of cash acquired. SunPower Corporation is a solar technology and energy services provider that offers fully integrated solar, storage, and home energy solutions to customers in the United States through an array of hardware, software, and “Smart Energy” solutions. The financial results of the SunPower Acquisition have been included in the Company’s consolidated financial statements since the date of Acquisition. This transaction was accounted for as a business combination in accordance with ASC 805, Business Combinations.

Transaction costs incurred in connection with the close of the acquisition totaled $7.2 million and were expensed by the Company and are included in general and administrative expenses within the consolidated statements of operations and comprehensive loss for the fiscal year ended December 29, 2024.

The fair values of assets acquired and liabilities assumed were based upon a preliminary valuation, and the Company’s estimates and assumptions are subject to change within the measurement period. Due to the complexities of acquiring assets out of bankruptcy the purchase price accounting remains open for certain assets acquired and liabilities assumed. The primary areas that remain preliminary relate to the cash consideration for the transaction for balances remaining in escrow, fair value of intangible assets and goodwill. The following table summarizes the provisional fair value of identifiable assets acquired and liabilities assumed (in thousands):

Net assets acquired:
Cash	$	1,000
Accounts receivable		11,999
Contract assets		4,615
Inventories		27,706
Prepaid expenses and other current assets		2,219
Property and equipment		5,867
Operating lease right-of-use assets		2,506
Other noncurrent assets		541
Intangibles		18,100
Deferred revenue		(7,361	)
Accounts payable		(5,270	)
Accrued expenses and other current liabilities		(13,955	)
Operating lease liabilities		(2,963	)
Other long-term liabilities		(8,980	)
Fair value of net assets acquired		36,024
Consideration transferred	$	54,500
Goodwill recognized	$	18,476

Goodwill represents the excess of the preliminary estimated consideration transferred over the fair value of the net tangible and intangible assets acquired that is associated with the excess cash flows that the acquisition is expected to generate in the future and has been allocated to the Company’s Residential Solar Installation and New Homes Business reporting units. The goodwill is tax deductible.

The income approach, using the relief from royalty method, was used to value the trademarks, and the cost approach was used for developed technology. Significant assumptions included in the valuation of trademarks include projected revenues, the selected royalty rate, discount rate, and the economic life of the underlying asset. Significant assumptions included in the valuation of the acquired technology include the estimated costs to reconstruct the asset (inclusive of a third-party profit margin) as well as the value of the opportunity cost of foregone returns over the period that the Company has estimated to recreate the asset.

Contract assets and liabilities were measured at fair value using the cost approach which approximates the carrying value at date of acquisition.

The SunPower Acquisition contributed $83.8 million and $6.5 million in revenue and income before income taxes, respectively for the period from the acquisition date to fiscal year ended December 29, 2024.

Unaudited Pro Forma Financial Information

The following unaudited pro forma financial information represents the consolidated financial statements of the Company for the periods presented, as if the acquisition occurred on January 1, 2023.

The unaudited pro forma combined financial information does not give effect to any cost savings, operating synergies or revenue synergies that may result from the Acquisition. The pro forma results do not necessarily reflect the actual results of operations of the combined business (in thousands).

	Unaudited
	Fiscal Year Ended
	December 29,			December 31,
	2024			2023

Pro forma revenue	$	381,860		$	697,651
Pro forma net loss from continuing operations		(283,122	)		(320,589	)

Reverse Recapitalization (Details) - USD ($) $ in Millions			12 Months Ended
Reverse Recapitalization (Details) - USD ($) $ in Millions	Dec. 31, 2023	Jul. 31, 2023	Dec. 29, 2024
Reverse Recapitalization [Line Items]
Net cash proceeds		$ 19.7
Common shares issued (in Shares)	49,065,361		73,784,645
Common shares outstanding (in Shares)	49,065,361		73,784,645
Additional paid-in capital			$ 16.4
Cash payments	$ 5.4
Legacy Complete Solaria [Member]
Reverse Recapitalization [Line Items]
Professional fees			16.4
Additional paid-in capital			$ 5.8
Class A Common Stock [Member] \| Merger [Member]
Reverse Recapitalization [Line Items]
Common shares issued (in Shares)			45,290,553
Common shares outstanding (in Shares)			45,290,553
FACT [Member]
Reverse Recapitalization [Line Items]
Additional paid-in capital			$ 10.6

Accrued Expenses and Other Current Liabilities (Tables)

12 Months Ended

Dec. 29, 2024

Accrued Expenses and Other Current Liabilities [Abstract]

Schedule of Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities consist of the following (in thousands):

	As of
	December 29,		December 31,
	2024		2023
Accrued compensation and benefits	$	6,619	$	3,969
Professional fees		8,028		—
Installation costs		6,177		—
Term loan and revolving loan amendment final payment fees		—		2,400
Accrued legal settlements		7,700		7,700
Accrued taxes		769		931
Accrued rebates and credits		7,641		677
Operating lease liabilities, current		1,412		607
Finance lease liabilities, current		2,053		—
Accrued warranty, current		2,531		1,433
Deferred financing fees		4,674		—
Accrued interest		1,982		—
Accrued interest due to related parties		2,541		—
Other accrued liabilities		3,954		10,153
Total accrued expenses and other current liabilities	$	56,081	$	27,870

Accounting Policies, by Policy (Policies)

12 Months Ended

Dec. 29, 2024

Summary of Significant Accounting Policies [Abstract]

Basis of Presentation

(a) Basis of Presentation

The consolidated financial statements and accompanying notes have been prepared in accordance with generally accepted accounting principles (“U.S. GAAP”) and pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All material intercompany balances and transactions have been eliminated in consolidation.

On March 10, 2025, the Company’s board of directors approved a change in the Company’s fiscal year end to have a 52-to-53-week fiscal year that ends on the Sunday closest to December 31. This change is effective for the fiscal year ended December 29, 2024.

Use of Estimates

(b) Use of Estimates

The preparation of the Company’s consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues, expenses, as well as related disclosure of contingent assets and liabilities. Significant estimates and assumptions made by management include, but are not limited to, the determination of:

	●	Fair value of warrant liabilities;

	●	Fair value of the forward purchase agreements

	●	Fair value of Simple Agreements for Future Equity Agreements (“SAFEs”)

	●	The reserve methodology for inventory obsolescence;

●

The reserve methodology for product warranty;

●

The reserve methodology for the allowance for credit losses;

●

Fair value of the derivative liabilities; and

●

The measurement of stock-based compensation.

To the extent that there are material differences between these estimates and actual results, the Company’s financial condition or operating results will be affected. The Company bases its estimates on past experience and other assumptions that the Company believes are reasonable under the circumstances, and the Company evaluates these estimates on an ongoing basis. The Company has assessed the impact and management is not aware of any specific events or circumstances that required an update to the Company’s estimates and assumptions or materially affected the carrying value of the Company’s assets or liabilities as of the date of issuance of this report. These estimates may change as new events occur and additional information is obtained.

Concentration of Risks

(c) Concentration of Risks

The Company is exposed to credit losses in the event of nonperformance by the counterparties to its financial and derivative instruments. Financial and derivative instruments that potentially subject the Company to concentrations of credit risk are primarily cash and cash equivalents, restricted cash and cash equivalents, accounts receivable, contract receivables and forward purchase agreement assets. The Company’s cash and cash equivalents are on deposit with major financial institutions. Such deposits may be in excess of insured limits. The Company believes that the financial institutions that hold the Company’s cash are financially sound, and accordingly, minimum credit risk exists with respect to these balances. The Company has not experienced any losses due to institutional failure or bankruptcy. The Company performs credit evaluations of its customers and generally does not require collateral for sales on credit. As of December 29, 2024, no customer had an outstanding balance that represented more than 10% of the total accounts receivable balance. As of December 31, 2023, two customers had an outstanding balance that represented 38% and 16% of the total accounts receivable balance.

Concentration of Customers

The Company defines major customers as those customers who generate revenues that exceed 10% of the Company’s annual net revenues. For the fiscal years ended December 29, 2024 and December 31, 2023, three customers and one customer represented 36% and 55% of gross revenues, respectively, all from the Residential Solar Installation reportable segment.

Concentration of Suppliers

For the fiscal year ended December 29, 2024, the Company expanded its preferred supplier list, as such there was no concentration of suppliers. For the fiscal year ended December 31, 2023, one supplier represented 40% of the Company’s inventory purchases.

Cash and Cash Equivalents

(d) Cash and Cash Equivalents

The Company considers all highly liquid securities that mature within three months or less from the original date of purchase to be cash equivalents. The Company maintains the majority of its cash balances with commercial banks in interest bearing accounts. Cash and cash equivalents include cash held in checking and savings accounts and money market accounts consisting of highly liquid securities with maturity dates of three months or less from the original date of purchase. As of December 29, 2024 and December 31, 2023, the Company had cash balances of $13.4 million and $2.6 million, respectively, in excess of federally insured limits.

Restricted Cash

(e) Restricted Cash

The Company classifies all cash for which usage is limited by contractual provisions as restricted cash. The restricted cash consists of deposits in money market accounts, which is used as cash collateral backing letters of credit related to customs duty authorities’ requirements. The Company has presented these balances under restricted cash, as a long-term asset, in the consolidated balance sheets. The Company reconciles cash, cash equivalents, and restricted cash reported in its consolidated balance sheets that aggregate to the beginning and ending balances shown in the Company’s consolidated statements of cash flows as follows (in thousands):

	As of
	December 29,		December 31,
	2024		2023
Cash and cash equivalents	$	13,378	$	2,593
Restricted cash		3,841		3,823
Total cash, cash equivalents, and restricted cash	$	17,219	$	6,416

Estimated Credit Losses

(f) Estimated Credit Losses

The Company recognizes an allowance for credit loss at the time a receivable is recorded based on the Company’s estimate of expected credit losses, historical write-off experience, and current account knowledge, and adjusts this estimate over the life of the receivable as needed. The Company evaluates the aggregation and risk characteristics of a receivable pool and develops loss rates that reflect historical collections, current forecasts of future economic conditions over the time horizon that the Company is exposed to credit risk, and payment terms or conditions that may materially affect future forecasts.

The Company performs ongoing credit evaluations of its customers’ financial condition when deemed necessary. The Company maintains an allowance for credit losses based on the expected collectability of all accounts receivable, which takes into consideration an analysis of historical bad debts, specific customer creditworthiness and current economic trends. The Company believes that its concentration of credit risk is limited because of the large number of customers, credit quality of the customer base, small account balances for most of these customers, and customer geographic diversification.

The following table summarizes the allowance for credit losses as follows (in thousands):

	As of
	December 29,			December 31,
	2024			2023
Balance at beginning of period	$	(9,846	)	$	(4,812	)
Provision charged to earnings		(9,132	)		(5,083	)
Amounts written off, net of recoveries and other adjustments		17,277			49
Balance at end of period	$	(1,701	)	$	(9,846	)

The Company does not have any off-balance sheet credit exposure relating to its customers. In fiscal year 2024, the Company identified customer accounts receivable balances that were deemed to be uncollectible, which were reserved and written off.

Contract Assets and Contract Liabilities

(g) Contract Assets and Contract Liabilities

Contract assets consist of unbilled receivables which represent revenue that has been recognized in advance of billing the customer. Contract liabilities consist of deferred revenue and customer advances, which represent consideration received from a customer prior to transferring control of goods or services to the customer under the terms of a sales contract. Total contract assets and contract liabilities balances as of the respective dates are as follows (in thousands):

	As of
	December 29,		December 31,
	2024		2023
Contract assets	$	26,066	$	—
Contract liabilities current and noncurrent		10,921		3,478

During the fiscal year ended December 29, 2024, the increase in contract assets of $26.1 million was primarily driven by an increase in residential project sales that have met revenue recognition based on applicable milestones but have not been billed. The increase in contract assets and contract liabilities is primarily attributed to the SunPower Acquisition in fiscal year 2024.

The Company typically invoices its customers upon completion of set milestones, generally upon installation of the solar energy system with the remaining balance invoiced upon passing final building inspection. Standard payment terms to customers range from 30 to 60 days. When the Company receives payment, or when such payment is unconditionally due from a customer prior to delivering goods or services to the customer under the terms of a customer agreement, the Company records this deferred revenue as a contract liability. As installation projects are typically completed within 12-months, the Company’s contract liability is reflected within current liabilities in the accompanying consolidated balance sheets. The amount of revenue recognized during the years ended December 29, 2024, and December 31, 2023, that was included in contract liabilities at the beginning of each period was $3.5 million and $2.1 million, respectively.

Inventories

(h) Inventories

Inventories consist of solar panels and the components of solar energy systems all of which is classified as finished goods within current assets at December 29, 2024 and December 31, 2023. Inventory is valued using the average cost method. The Company identifies inventory which is considered obsolete or in excess of anticipated demand based on a consideration of marketability and product life cycle stage, component cost trends, demand forecasts, historical revenues, and assumptions about future demand and market conditions, and such inventory has been adjusted to its lower of cost or net realizable value.

Revenue Recognition

(i) Revenue Recognition

Revenue is recognized for Residential Solar Installation and New Home Business when a customer obtains control of promised products and services and the Company has satisfied its performance obligations which is the date by which substantially all of its design and installation is complete for a fully functioning solar power system to interconnect to the local power grid.

Installation includes the design of a solar energy system, the delivery of the components of the solar energy system (i.e., photovoltaic system, inverter, battery storage, etc.), installation services and services facilitating the connection of the solar energy system to the power grid. The Company accounts for these services as inputs to a combined output, resulting in a single service-based performance obligation.

The amount of revenue recognized reflects the consideration which the Company expects to be entitled to receive in exchange for the products and services. To achieve this core principle, the Company applies the following five steps:

Step 1. Identification of the contract(s) with a customer;

Step 2. Identification of the performance obligations in the contracts(s);

Step 3. Determination of the transaction price;

Step 4. Allocation of the transaction price to the performance obligations;

Step 5. Recognition of the revenue when, or as, the Company satisfies a performance obligation.

Residential Solar Installation Revenues

The Company’s Residential Solar Installation segment sells products through a network of installing and non-installing dealers and resellers, as well as its internal sales team. The Company’s contracts with customers include three primary contract types:

●

Cash agreements – The Company contracts directly with homeowners who purchase the solar energy system and related services from the Company. Customers are invoiced on a billing schedule, where the majority of the transaction price is due upon installation with an additional payment due when the system passes inspection by the authority having jurisdiction.

●

Financing partner agreements – In its financing partner agreements, the Company contracts directly with homeowners for the purchase of the solar energy system and related services. The Company refers the homeowner to a financing partner to finance the system, and the homeowner makes payments directly to the financing partner. The Company receives consideration from the financing partner on a billing schedule where the majority of the transaction price is due upon installation with an additional payment due when the system passes inspection by the authority having jurisdiction.

●

Power purchase agreements and lease agreements – The Company contracts directly with a leasing partner to perform the solar energy system installation, and the homeowner will finance the system through a power purchase agreement (or lease), which is signed with the Company’s leasing partner. The Company considers the leasing partner to be its customer, as the Company does not contract directly with the homeowner and the leasing partner takes ownership of the system upon the completion of installation. The Company receives consideration from the leasing partner on a billing schedule where the majority of the transaction price is due upon installation with an additional payment due when the system passes inspection by the authority having jurisdiction.

New Home Business Revenues

The Company’s New Homes Business sells through a network of home builders as well as its internal sales team. The Company’s contracts with customers include two primary contract types:

●

Cash agreements – The Company contracts directly with homebuilders who purchase the solar energy system from the Company and are the customers in the transaction. The Company’s customers are invoiced upon the completion of installation.

●

Lease agreements – Prior to the SunPower Corporation’s declaration of bankruptcy, certain homeowners had intended to lease a system from the SunPower Corporation, but were unable to consummate the transaction (as a result of SunPower’s declaration of bankruptcy). The in-process system inventory (installed on recently constructed homes) was acquired by the Company in connection with the SunPower Acquisition. The Company contracted directly with a leasing partner to facilitate the leasing of the system to the impacted homeowners. The Company considers the leasing partner to be its customer. Under the terms of the Company’s arrangement with the leasing partner, control is not transferred to the customer until the completed system is accepted by the customer. The Company receives consideration from the leasing partner following the acceptance of the system.

The Company’s performance obligation for both reportable segments is to design and install a fully functioning solar energy system. For all contract types (with the exception of New Homes Business Lease agreements), the Company recognizes revenue over time. The Company’s over-time revenue recognition begins when the solar power system is fully installed (as it is at this point that control of the asset begins to be transferred to the customer and the customer retains the significant risks and rewards of ownership of the solar power system). The Company recognizes revenue using the input method based on direct costs to install the system and defers the costs of installation until such time that control of the asset transfers to the customer (installation). For New Homes Business Lease agreements, the Company considers the performance obligation to be satisfied at a point in time upon acceptance of the system by the customer.

Revenue is generally recognized at the transaction price contained within the agreement, net of costs of financing, or other consideration paid to the customers that is not in exchange for a distinct good or service. The Company’s arrangements may contain clauses that can either increase or decrease the transaction price. Variable consideration is estimated at each measurement date at its most likely amount to the extent that it is probably that a significant reversal of cumulative revenue recognized will not occur and true-ups are applied prospectively as such estimates change.

The Company records deferred revenue for amounts invoiced that are received in advance of the provisioning of services. In certain contracts with customers, the Company arranges for a third-party financing partner to provide financing to the customer. The Company collects upfront from the financing partner and the customer will provide installment payments to the financing partner. The Company records revenue in the amount received from the financing partner, net of any financing fees charged to the homeowner, which the Company considers to be a customer incentive. None of the Company’s contracts contain a significant financing component.

Costs to obtain and fulfill contracts

The Company’s costs to obtain and fulfill contracts, when recognized, associated with systems sales are expensed as sales commission and cost of revenue, respectively. In addition, incentives the Company provides to its customers, such as discounts and rebates, are recorded net to the revenue the Company has recognized on the solar power system.

Warranties

The Company typically provides a 10-year warranty on its solar energy system installations, which provides assurance over the workmanship in performing the installation, including roof leaks caused by the Company’s performance. For solar panel sales recognized prior to the Divestiture, the Company provides a 30-year warranty that the products will be free from defects in material and workmanship. The Company retained its warranty obligations associated with panel sales prior to the Divestiture.

When the revenues are recognized for the solar energy systems installations services, the Company accrues liabilities for the estimated future costs of meeting its warranty obligations. The Company makes and revises these estimates based primarily on the volume of new sales that contain warranties, historical experience with and projections of warranty claims, and estimated solar energy system and panel replacement costs. The Company records a provision for estimated warranty expenses in cost of revenues within the accompanying consolidated statements of operations and comprehensive loss. Warranty costs primarily consist of replacement materials and equipment and labor costs for service personnel.

Disaggregation of revenue

Refer to the table below for the Company’s revenue recognized (in thousands):

	Fiscal Year Ended
	December 29,		December 31,
	2024		2023
Residential Solar Installations
Revenue recognized over time	$	67,460	$	84,858
Revenue recognized at a point in time		—		2,758
Total Residential Solar Installations		67,460		87,616

New Homes Business
Revenue recognized over time		32,205		—
Revenue recognized at a point in time		9,077		—
Total New Homes Business		41,282		—
Total revenue	$	108,742	$	87,616

For the fiscal years ended December 29, 2024, and December 31, 2023, all revenue recognized was generated in the U.S.

Remaining performance obligations

The Company elected the practical expedient not to disclose the remaining performance obligations for contracts that are less than one year in length. As of December 29, 2024, the Company has deferred $0.9 million associated with a long-term service contract, which will be recognized evenly through 2028. The Company had deferred $1.2 million associated with a long-term service contract as of December 31, 2023.

Incremental costs of obtaining customer contracts

Incremental costs of obtaining customer contracts consist of sales commissions, which are costs paid to third-party vendors who source residential customer contracts for the sale of solar energy systems by the Company. The Company defers sales commissions and recognizes expenses in accordance with the timing of the related revenue recognition. Amortization of deferred commissions is recorded as sales commissions in the accompanying consolidated statements of operations and comprehensive loss. As of December 29, 2024 and December 31, 2023, deferred commissions were zero and $4.2 million, respectively, and classified within prepaid expenses and other current assets in the accompanying consolidated balance sheets.

Property and Equipment, Net

(j) Property and Equipment, Net

Property and equipment are stated at cost less accumulated depreciation and amortization. When assets are retired or disposed of, the cost and accumulated depreciation are removed from the accounts, and any resulting gain or loss is included in the current period. Repair and maintenance costs are expensed as incurred. Depreciation and amortization are calculated using the straight-line method over the following estimated useful lives of the assets:

		Useful Lives
Manufacturing equipment		1 – 3 years
Internal-use software		3 – 5 years
Furniture & equipment		3 – 5 years
Leasehold improvements		Shorter of 3 to 5 years of the asset or the term of the lease.

Internal-Use Software

(k) Internal-Use Software

The Company capitalizes costs to develop its internal-use software when preliminary development efforts are successfully completed, management has authorized and committed project funding, it is probable that the project will be completed, and the software will be utilized as intended. These costs include personnel and related employee benefits and expenses for employees who are directly associated with and who devote time to software projects, and external direct costs of materials and services consumed in developing or obtaining software. Costs incurred prior to meeting these criteria, together with costs incurred for training and maintenance, are expensed as incurred. Costs incurred for enhancements that are expected to provide additional material functionality are capitalized and amortized over the estimated useful life of the related upgrade. During the fiscal years ended December 29, 2024 and December 31, 2023, the Company capitalized $1.2 million and $1.9 million, respectively, of internal-use software development costs. The remaining unamortized balance as of December 29, 2024 and December 31, 2023, of $0.2 million and $3.8 million, respectively, is included in property and equipment, net within the accompanying consolidated balance sheets.

Cost of Revenues

(l) Cost of Revenues

Cost of revenues is comprised primarily of cost of material, internal labor costs, third-party subcontractors, design services, engineering personnel and employee-related expenses associated with permitting services, associated warranty costs, freight and delivery costs, depreciation, and amortization of internally developed software. Cost of revenues from these services is recognized when the Company transfers control of the product to the customer, which is generally upon installation.

Advertising and Promotional Expenses

(m) Advertising and Promotional Expenses

Advertising and promotional costs are expensed as incurred and included in sales and marketing expense in the accompanying consolidated statements of operations and comprehensive loss. Advertising costs were not material for the fiscal years ended December 29, 2024 and December 31, 2023.

Income Taxes

(n) Income Taxes

Income taxes are accounted for under the liability method. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. The Company recognizes the effect of income tax positions only if those positions are more likely than not to be sustained. Recognized income tax positions are measured at the largest amount that is greater than 50% likely of being realized. Changes in recognition or measurement are reflected in the period in which the change in judgment occurs. The Company recognizes accrued interest and penalties, if any, related to unrecognized tax benefits in its income tax provision.

Goodwill

(o) Goodwill

The Company tests goodwill at the reporting unit level for impairment annually on the first day of the fourth quarter, or more frequently if an event occurs or circumstances change that would more likely than not reduce the fair value of the reporting unit below its carrying amount.

The Company may elect to perform a qualitative assessment that considers economic, industry and company-specific factors. If, after completing the assessment, it is determined that it is more likely than not that the fair value of a reporting unit is less than its carrying value, the Company proceeds to a quantitative test. Quantitative testing requires a comparison of the fair value of each reporting unit to its carrying value. If the carrying value of the reporting unit exceeds its fair value, goodwill impairment is measured as the amount by which the reporting unit’s carrying value exceeds its fair value, not to exceed the carrying value of goodwill.

Comprehensive Loss

(p) Comprehensive Loss

Comprehensive loss consists of two components, net loss and other comprehensive income (loss), net. The Company’s other comprehensive loss consists of foreign currency translation adjustments that result from the consolidation of its foreign entities and is reported net of their related tax effects.

Impairment of Long-Lived Assets

(q) Impairment of Long-Lived Assets

Long-lived assets, such as property and equipment, ROU assets, and intangible assets subject to amortization, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. If circumstances require a long-lived asset or asset group to be tested for possible impairment, the Company first compares undiscounted cash flows expected to be generated by that asset or asset group to its carrying value. If the carrying value of the long-lived asset or asset group is not recoverable on an undiscounted cash flow basis, an impairment is recognized to the extent that the carrying value exceeds its fair value. Fair value is determined through various valuation techniques including discounted cash flow models, and quoted market values, as considered necessary.

The Company recognized an impairment loss in the fiscal year ended December 29, 2024 as disclosed in Note 9 - Property and equipment, net. There were no impairment charges recorded in continuing operations for the fiscal year ended December 31, 2023.

Intangible Assets, Net

(r) Intangible Assets, Net

Intangible assets are recorded at cost, less accumulated amortization. Amortization is recorded using the straight-line method. All intangible assets that have been determined to have definite lives are amortized over their estimated useful life as indicated below:

		Useful Lives
Trademarks		10 years
Developed technology		3 years

Stock-Based Compensation

(s) Stock-Based Compensation

The Company recognizes stock-based compensation expense over the requisite service period on a straight- line basis for all stock-based payments that are expected to vest to employees, non-employees and directors, including grants of employee stock options and other stock-based awards. Equity-classified awards issued to employees, non-employees such as consultants and non-employee directors are measured at the grant-date fair value of the award. Forfeitures are recognized as they occur. For accounting purposes, the Company estimates grant-date fair value of stock options using the Black-Scholes option pricing model. The Black-Scholes option pricing model requires the input of highly subjective assumptions, including the fair value of the underlying common stock as of the grant date, the expected term of the option, the expected volatility of the price of the Company’s common stock and expected dividend yield.

Fair Value Measurements

(t) Fair Value Measurements

The Company utilizes valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs to the extent possible. The Company determines fair value based on assumptions that market participants would use in pricing an asset or liability in the principal or most advantageous market.

When considering market participant assumptions in fair value measurements, the following fair value hierarchy distinguishes between observable and unobservable inputs, which are categorized in one of the following levels:

●

Level 1 inputs: Unadjusted quoted prices in active markets for identical assets or liabilities accessible to the reporting entity at the measurement date.

●

Level 2 inputs: Other than quoted prices included in Level 1 inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the asset or liability.

●

Level 3 inputs: Unobservable inputs for the asset or liability used to measure fair value to the extent that observable inputs are not available, thereby allowing for situations in which there is little, if any, market activity for the asset or liability at the measurement date.

Financial assets and liabilities held by the Company measured at fair value every reporting period as of December 29, 2024 and December 31, 2023 include cash and cash equivalents, accounts receivable, accounts payable, accrued expenses, the warrant liabilities, FPAs, and derivative liabilities associated with the Company’s debt.

The carrying amounts of cash, accounts receivable, accounts payable and accrued expenses approximate their fair value because of their short-term nature (classified as Level 1).

The warrant liabilities, derivative liabilities and FPAs are measured at fair value using Level 3 inputs. The Company records subsequent adjustments to reflect the increase or decrease in estimated fair value at each reporting date within Other income (expense), net in its consolidated statements of operations and comprehensive loss.

Net Loss Per Share

(u) Net Loss Per Share

The Company computes net loss per share following ASC 260, Earnings Per Share. Basic net loss per share is measured as the loss attributable to common stockholders divided by the weighted average common shares outstanding during periods with undistributed losses. Diluted net loss per share of common stock is computed by dividing the net loss attributable to common stockholders by the weighted-average number of common share equivalents outstanding for the period determined using the treasury-stock method and if-converted method, as applicable. Securities that potentially have an anti-dilutive effect (i.e., those that increase income per share or decrease loss per share) are excluded from the diluted loss per share calculation.

Leases

(v) Leases

The Company accounts for its leases following ASC 842, Leases. The Company determines if a contract is a lease or contains a lease at the inception of the contract and reassesses that conclusion if the contract is modified. The Company’s lease agreements generally contain lease and non-lease components. Payments under lease arrangements are primarily fixed. The Company combines lease and non-lease components and accounts for them together as a single lease component. All leases are assessed for classification as an operating lease or a finance lease. Each of operating lease right-of-use (“ROU”) assets and financed lease assets are presented separately on the Company’s consolidated balance sheets. Operating lease liabilities and finance lease obligations are separated into their respective current portion and non-current portions and are presented separately on the Company’s consolidated balance sheets.

ROU assets represent the Company’s right to use an underlying asset for the lease term and lease liabilities represent its obligation to make lease payments arising from the lease. Operating lease ROU assets and liabilities are recognized on the date in which the lessor makes the underlying asset available for use, based upon the present value of the lease payments over the respective lease term. Lease expense is recognized on a straight-line basis over the lease term, subject to any changes in the lease or expectation regarding the terms. Variable lease costs such as common area maintenance, property taxes and insurance are expensed as incurred.

The Company generally uses its incremental borrowing rate to discount the lease payments to present value. The estimated incremental borrowing rate is derived from information available at the lease commencement date. The Company’s lease terms include periods under options to extend or terminate the lease. Options to renew or extend leases beyond their initial term have been excluded from measurement of the ROU assets and lease liabilities as exercise of such options is not reasonably certain. The Company generally uses the base, non-cancellable, lease term when determining the lease assets and liabilities. The Company records a right-of-use asset which is calculated based on the amount of the lease liability, adjusted for any advance lease payments made, lease incentives received, and initial direct costs incurred. Right-of-use assets are subject to evaluation for impairment or disposal on a basis consistent with other long-lived assets.

The Company has elected, for all classes of underlying assets, not to recognize ROU assets and lease liabilities for leases with an initial term of twelve months or less. Lease cost for short-term leases is recognized on a straight-line basis over the lease term.

Warrant Liabilities

(w) Warrant Liabilities

The Company accounts for its warrant liabilities in accordance with the guidance in ASC 815-40, Derivatives and Hedging – Contracts in Entity’s Own Equity, under which the warrants that do not meet the criteria for equity classification and must be recorded as liabilities. The warrant liabilities are measured at fair value at inception and at each reporting date in accordance with the guidance in ASC 820, Fair Value Measurement, with any subsequent changes in fair value recognized in Other income (expense), net on the consolidated statements of operations and comprehensive loss. Refer to Note 5 – Fair Value Measurements and Note 14 – Warrants.

Forward Purchase Agreements

(x) Forward Purchase Agreements

The Company accounts for its FPAs in accordance with the guidance in ASC 480, Distinguishing Liabilities from Equity, as the agreements embody an obligation to transfer assets to settle a forward contract. The FPAs are measured at fair value at inception and at each reporting date in accordance with the guidance in ASC 820, Fair Value Measurement, with any subsequent changes in fair value recognized in Other income (expense), net on the consolidated statements of operations and comprehensive loss. Refer to Note 5 – Fair Value Measurements and Note 6 – Forward Purchase Agreements.

Recently Adopted Accounting Pronouncements

(y) Recently Adopted Accounting Pronouncements

In November 2023, the FASB issued ASU No. 2023-07 “Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures” (“ASU 2023-07”). The ASU expands public entities’ segment disclosures by requiring disclosure of significant segment expenses that are regularly provided to the CODM and included within each reported measure of segment profit or loss, an amount and description of its composition for other segment items, and interim disclosures of a reportable segment’s profit or loss and assets. This guidance is effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024, and requires retrospective adoption. The Company adopted ASU 2023-07 in its fourth quarter of 2024 using a retrospective transition method. See Note 22 – Segment Information for the Company’s disclosures reflecting the adoption.

Accounting Pronouncements Not Yet Adopted

(z) Accounting Pronouncements Not Yet Adopted

In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures. The objective of ASU 2023-09 is to enhance disclosures related to income taxes, including specific thresholds for inclusion within the tabular disclosure of income tax rate reconciliation and specified information about income taxes paid. ASU 2023-09 is effective for public companies starting in annual periods beginning after December 15, 2024. The Company is currently evaluating this ASU to determine its impact upon the Company’s disclosures.

In November 2024, the FASB issued ASU 2024-03, Income Statement (Topic 220) Reporting Comprehensive Income – Expense Disaggregation Disclosure. The objective of ASU 2024-03 is to disclose disaggregated information about certain income statement expense line items. ASU 2024-03 is effective for public companies starting in annual periods beginning after December 15, 2026. The Company is currently evaluating this ASU to determine its impact on the Company’s disclosures.

Summary of Significant Accounting Policies - Schedule of Intangible Assets of Estimated Useful Life (Details)	12 Months Ended
	Dec. 29, 2024
Trademarks [Member]
Schedule of Intangible Assets of Estimated Useful Life [Line Items]
Intangible assets estimated useful life	10 years
Developed technology [Member]
Schedule of Intangible Assets of Estimated Useful Life [Line Items]
Intangible assets estimated useful life	3 years

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

Borrowing and Derivative Liabilities [Line Items]

Borrowings and Derivative Liabilities (Details) - USD ($)

1 Months Ended

12 Months Ended

Jul. 31, 2024

Jul. 01, 2024

Sep. 30, 2024

Jul. 31, 2024

Sep. 30, 2023

Dec. 31, 2022

Oct. 31, 2020

Dec. 29, 2024

Dec. 31, 2023

Dec. 31, 2022

Oct. 31, 2023

Dec. 31, 2018

Derivative liabilities

Notes payable and derivative liabilities, net of current portion

31.70%

47.30%

Forward purchase agreement liabilities

Fair value warrants

$ 7,300,000

$ (2,921,000)

$ (29,310,000)

$ 10,900,000

^[1]

22,337,000

61,937,000

Percentage of incremental default interest

Related party expenses

$ 1,100,000

$ 0

0.50%

Contingent interest payable

$ 66,800,000

$ 1,600,000

Shares of common stock (in Shares)

73,784,645

49,065,361

Common stock, par value (in Dollars per share)

$ 0.0001

Short-term debt

$ 1,500,000

Amortization of issuance costs

^[2]

5,842,000

Twelve Percentage Senior Unsecured Convertible Notes [Member]

Borrowing and Derivative Liabilities [Line Items]

$ 46,000,000

Notes issued

$ 18,000,000

Conversion price, per share (in Dollars per share)

12.00%

Maturity date

Jul. 01, 2029

Interest rate

3.00%

$ 1.68

$ 28,700,000

34,700,000

Fair value warrants

1,400,000

900,000

500,000

Unamortized debt discount

77,300,000

Convertible notes

70,400,000

27,800,000

2,800,000

1,800,000

Borrowing and Derivative Liabilities [Line Items]

$ 28,000,000

July 2024 Notes [Member]

33.40%

Seven Percentage Senior Unsecured Convertible Notes [Member]

$ 18,000,000

Borrowing and Derivative Liabilities [Line Items]

$ 66,800,000

7.00%

Maturity date

Jul. 01, 2029

$ 91,500,000

66,800,000

4,000,000

Related party expenses

500,000

$ 0

September 2024 Notes [Member]

13,000,000

Financing los

$ 24,700,000

Borrowing and Derivative Liabilities [Line Items]

13,000,000

27.60%

62,400,000

Unamortized debt discount

79,800,000

Convertible notes

68,500,000

73,700,000

Borrowing and Derivative Liabilities [Line Items]

1,400,000

$ 0

July 2024 Notes [Member]

2018 Bridge Notes [Member]

8,000,000

Borrowing and Derivative Liabilities [Line Items]

8.00%

Convertible secured notes

700,000

1,200,000

$ 3,400,000

Loan amount

11,700,000

SCI Loan Agreement [Member]

Borrowing and Derivative Liabilities [Line Items]

Maturity date

Oct. 31, 2023

Debt in CS Solis [Member]

Borrowing and Derivative Liabilities [Line Items]

Notes issued

10,000,000

12,500,000

3,900,000

2,700,000

Revolving loan exchanged for notes

7,200,000

33,280,000

Carlyle contributed

$ 25,600,000

Redemption price percentage

10.50%

Investment dividend payable percentage

25.00%

Warrant to purchase shares (in Shares)

5,978,960

Price per share (in Dollars per share)

$ 0.01

Purchase of shares (in Shares)

4,132,513

Short-term debt

33,300,000

Amortization of issuance costs

$ 0

700,000

Carlyle Warrant Agreement [Member]

Borrowing and Derivative Liabilities [Line Items]

Warrant to purchase shares (in Shares)

2,745,879

Common stock price (in Dollars per share)

$ 0.01

Outstanding warrants (in Shares)

1,995,879

Debt agreement description

(a) the greater of (i) 1,995,879 shares and (ii) the number of shares equal to 2.795% of Complete Solaria’s issued and outstanding shares of common stock, on a fully-diluted basis; plus (b) on and after the date that is ten (10) days after the date of the agreement, an additional 350,000 shares; plus (c) on and after the date that is thirty (30) days after the date of the agreement, if the original investment amount has not been repaid, an additional 150,000 shares; plus (d) on and after the date that is ninety (90) days after the date of the agreement, if the original investment amount has not been repaid, an additional 250,000 shares, in each case, of Complete Solaria Common Stock at a price of $0.01 per share. The warrants are classified as liabilities under ASC 815 and are recorded within warrant liability on the Company’s consolidated statements of operations and comprehensive loss.

Convertible Senior Notes [Member]

Borrowing and Derivative Liabilities [Line Items]

Debt instrument amount

$ 37,200,000

Two Thousand Twenty Two Convertible Notes [Member]

Borrowing and Derivative Liabilities [Line Items]

Purchase price of convertible notes

$ 400,000

700,000

$ 12,000,000

Notes fair value

$ 6,700,000

Accrued interest rate

5.00%

Minimum [Member] | 2018 Bridge Notes [Member]

5,316,460

Borrowing and Derivative Liabilities [Line Items]

Increased repayment premium, percentage

110.00%

Maximum [Member] | 2018 Bridge Notes [Member]

Borrowing and Derivative Liabilities [Line Items]

Increased repayment premium, percentage

120.00%

Two Thousand Twenty Two Convertible Notes [Member]

Borrowing and Derivative Liabilities [Line Items]

Purchase price of convertible notes

$ 33,300,000

21,300,000

Common Stock [Member] | Seven Percentage Senior Unsecured Convertible Notes [Member]

Borrowing and Derivative Liabilities [Line Items]

Conversion price, per share (in Dollars per share)

$ 2.14

Common Stock [Member] | July 2024 Notes [Member]

Borrowing and Derivative Liabilities [Line Items]

Shares of common stock (in Shares)

1,500,000

Related Party [Member]

Borrowing and Derivative Liabilities [Line Items]

$ 3,000,000

Contingent interest payable

200,000

1,300,000

Borrowing and Derivative Liabilities [Line Items]

$ 18,000,000

Borrowing and Derivative Liabilities [Line Items]

1,700,000

Borrowing and Derivative Liabilities [Line Items]

$ 4,000,000

Borrowing and Derivative Liabilities [Line Items]

$ 4,000,000

Borrowing and Derivative Liabilities [Line Items]

200,000

Limited Liability Company [Member] | Twelve Percentage Senior Unsecured Convertible Notes [Member]

$ 12,100,000

Borrowing and Derivative Liabilities [Line Items]

Carlyle [Member] | July 2024 Notes [Member]

10,000,000

Borrowing and Derivative Liabilities [Line Items]

Borrowing and Derivative Liabilities [Line Items]

10,000,000

Kline Hill [Member]

Loan amount

3,900,000

Kline Hill [Member] | July 2024 Notes [Member]

Borrowing and Derivative Liabilities [Line Items]

Kline Hill [Member] | Common Stock [Member]

$ 8,000,000

Borrowing and Derivative Liabilities [Line Items]

Shares of common stock (in Shares)

1,500,000

Common stock, par value (in Dollars per share)

$ 0.0001

Interest Expense [Member]

Borrowing and Derivative Liabilities [Line Items]

Polar Settlement Agreement [Member]

600,000

Borrowing and Derivative Liabilities [Line Items]

Balance outstanding

300,000

Polar Settlement Agreement [Member] | Working Capital Loan [Member]

Borrowing and Derivative Liabilities [Line Items]

Monthly installments payment

$ 500,000

Secured Credit Facility [Member]

Borrowing and Derivative Liabilities [Line Items]

9,800,000

Secured credit facility balance

$ 3,500,000

1,000,000

$ 13,100,000

Borrowing percentage

70.00%

Maximum amount

$ 10,000,000

Aggregate borrowing

20,000,000

$ 20,000,000

Secured credit facility exchanged

$ 13,100,000

Secured credit facility outstanding

12,200,000

Accrued financing cost

4,500,000

Revolving Loan Member]

Borrowing and Derivative Liabilities [Line Items]

Revolving loan exchanged for notes

$ 500,000

Annual interest rate

7.75%

Prime rate plus

4.50%

$ 3,500,000

Revolving Loan Member] | SCI Loan Agreement [Member]

Borrowing and Derivative Liabilities [Line Items]

Revolving loan

$ 5,000,000

Revolving Loan Member] | Kline Hill Partners Opportunity IV SPV LLC [Member]

Borrowing and Derivative Liabilities [Line Items]

Purchase price

5,000,000

Term Loan [Member] | SCI Loan Agreement [Member]

Borrowing and Derivative Liabilities [Line Items]

Revolving loan

$ 5,000,000

Revocable Living Trust [Member]

Borrowing and Derivative Liabilities [Line Items]

Revolving loan outstanding

$ 1,500,000

Class B Membership Units [Member] | Debt in CS Solis [Member]

Borrowing and Derivative Liabilities [Line Items]

Membership units

100

Class A Membership Units [Member] | Debt in CS Solis [Member]

Borrowing and Derivative Liabilities [Line Items]

Membership units

100

[1]	Gain includes $12.5 million with a related party in the fiscal year ended December 29, 2024. Refer to Note 15 – Borrowings and Derivative Liabilities for details.
[2]	Includes $1.6 million of amortization of debt issuance costs with related parties.

Accrued Expenses and Other Current Liabilities - Schedule of Accrued Expenses and Other Current Liabilities (Details) - Accounts Payable and Accrued Liabilities [Member] - USD ($) $ in Thousands	Dec. 29, 2024	Dec. 31, 2023
Schedule of Accrued Expenses and Other Current Liabilities [Line Items]
Accrued compensation and benefits	$ 6,619	$ 3,969
Professional fees	8,028
Installation costs	6,177
Term loan and revolving loan amendment final payment fees		2,400
Accrued legal settlements	7,700	7,700
Accrued taxes	769	931
Accrued rebates and credits	7,641	677
Operating lease liabilities, current	1,412	607
Finance lease liabilities, current	2,053
Accrued warranty, current	2,531	1,433
Deferred financing fees	4,674
Accrued interest	1,982
Accrued interest due to related parties	2,541
Other accrued liabilities	3,954	10,153
Total accrued expenses and other current liabilities	$ 56,081	$ 27,870

Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 29, 2024	Dec. 31, 2023
Deferred income tax assets
Net operating loss	$ 34,749	$ 17,957
Debt derivatives	24,591
Bad debt reserve	431	2,799
Stock based compensation	452	3,060
Lease liability	1,512	10
Other reserves	3,381	3,764
Interest expense carryover	7,005	5,503
Intangibles	1,279	32
Capitalized research and development	824	808
Other	3,336	5,827
Total	77,560	39,760
Valuation allowance	(55,714)	(38,407)
Net deferred tax assets	21,846	1,353
Deferred income tax liabilities
Convertible loan discount	(19,175)	(759)
Other	(2,671)	(594)
Total deferred tax liabilities	(21,846)	(1,353)
Net deferred tax assets

Property and Equipment, Net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2024	Dec. 31, 2023
Property and Equipment, Net [Abstract]
Depreciation and amortization expense	$ 2,000	$ 900
Finance leases	3,929
Disposal of property and equipment	3,800
Vehicles [Member]
Property and Equipment, Net [Abstract]
Finance leases	3,900
Software Development [Member]
Property and Equipment, Net [Abstract]
Disposal of property and equipment	$ 3,400

Basic and Diluted Net Loss Per Share - Schedule of Basic and Diluted Net Loss Per Share Attributable to Common Stockholders (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 29, 2024	Dec. 31, 2023
Numerator for basic loss per share:
Net loss from continuing operations	$ (54,444)	$ (96,197)
Net loss from discontinued operations	(2,007)	(25,853)
Impairment loss from discontinued operations		(147,505)
Net loss	(56,451)	(269,555)
Numerator for diluted loss per share
Impact of September 2024 Notes derivative liability and interest expense, net of tax	(35,886)
Net loss	$ (92,337)	$ (269,555)
Weighted average shares:
Denominator for basic loss per share	66,655,837	24,723,370
September 2024 Notes derivative liability	9,137,711
Denominator for diluted loss per share	75,793,548	24,723,370
Net loss per share:
Continuing operations – basic	$ (0.82)	$ (3.89)
Discontinued operations - basic	(0.03)	(1.05)
Net loss - basic	(0.85)	(4.94)
Continuing operations – diluted	(1.19)	(3.89)
Discontinued operations – diluted	(0.03)	(1.05)
Net loss – diluted	$ (1.22)	$ (4.94)

Pay vs Performance Disclosure - USD ($) $ in Thousands	12 Months Ended
Pay vs Performance Disclosure - USD ($) $ in Thousands	Dec. 29, 2024	Dec. 31, 2023
Pay vs Performance Disclosure
Net Income (Loss)	$ (56,451)	$ (269,555)

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 250
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483443/250-10-50-6

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 250
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
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-URI https://asc.fasb.org/1943274/2147483443/250-10-50-9

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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-SubTopic 60
-Name Accounting Standards Codification
-Section 65
-Paragraph 1
-Subparagraph (g)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147476176/805-60-65-1

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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-Section 65
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Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
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-Paragraph 2
-Subparagraph (SX 210.5-03(20))
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-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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-Section S99
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-Subparagraph (SX 210.4-08(g)(1)(ii))
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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-Section 50
-Paragraph 3
-Subparagraph (c)
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-URI https://asc.fasb.org/1943274/2147481687/323-10-50-3

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
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-Section 50
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482765/220-10-50-6

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 250
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-Section 50
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-URI https://asc.fasb.org/1943274/2147483443/250-10-50-3

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
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Reference 12: http://www.xbrl.org/2003/role/disclosureRef
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-Section 65
-Paragraph 1
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480175/815-40-65-1

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Topic 250
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-URI https://asc.fasb.org/1943274/2147483443/250-10-50-8

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
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-URI https://asc.fasb.org/1943274/2147483443/250-10-50-11

Reference 15: http://www.xbrl.org/2003/role/disclosureRef
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Reference 16: http://www.xbrl.org/2003/role/disclosureRef
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Reference 17: http://www.xbrl.org/2003/role/exampleRef
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-URI https://asc.fasb.org/1943274/2147479168/946-830-55-10

Reference 18: http://www.xbrl.org/2003/role/disclosureRef
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-URI https://asc.fasb.org/1943274/2147479105/946-220-45-7

Reference 19: http://www.xbrl.org/2003/role/disclosureRef
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Reference 20: http://www.xbrl.org/2003/role/disclosureRef
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Summary of Significant Accounting Policies [Abstract]

Cover - USD ($) $ in Millions	12 Months Ended
Cover - USD ($) $ in Millions	Dec. 29, 2024	Apr. 28, 2025	Jun. 28, 2024
Document Information [Line Items]
Document Type	10-K
Document Annual Report	true
Document Transition Report	false
Document Financial Statement Error Correction [Flag]	false
Entity Interactive Data Current	Yes
ICFR Auditor Attestation Flag	false
Amendment Flag	false
Document Period End Date	Dec. 29, 2024
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	FY
Entity Information [Line Items]
Entity Registrant Name	COMPLETE SOLARIA, INC.
Entity Central Index Key	0001838987
Entity File Number	001-40117
Entity Tax Identification Number	93-2279786
Entity Incorporation, State or Country Code	DE
Current Fiscal Year End Date	--12-29
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Shell Company	false
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	true
Entity Public Float			$ 36.1
Entity Incorporation, Date of Incorporation	Feb. 22, 2010
Entity Contact Personnel [Line Items]
Entity Address, Address Line One	45700 Northport Loop East
Entity Address, City or Town	Fremont
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	94538
Entity Phone Fax Numbers [Line Items]
City Area Code	(510)
Local Phone Number	270-2507
Entity Listings [Line Items]
Entity Common Stock, Shares Outstanding		80,165,123
Common stock, par value $0.0001 per share
Entity Listings [Line Items]
Title of 12(b) Security	Common stock, par value $0.0001 per share
Trading Symbol	SPWR
Security Exchange Name	NASDAQ
Redeemable warrants, each whole warrant exercisable for one common stock
Entity Listings [Line Items]
Title of 12(b) Security	Redeemable warrants, each whole warrant exercisable for one common stock
Trading Symbol	SPWRW
Security Exchange Name	NASDAQ

Common Stock - Schedule of Reserved Shares of Common Stock (Details) - shares	Dec. 29, 2024	Dec. 31, 2023
Schedule of Reserved Shares of Common Stock [Abstract]
Common stock warrants	31,670,265	27,637,266
Employee stock purchase plan	2,628,996	2,628,996
Stock options and RSUs, issued and outstanding	11,979,368	11,774,743
Stock options and RSUs, authorized for future issuance	2,577,895	3,850,462
SAFE Agreement	2,750,000
Forward purchase agreements	6,720,000
Convertible notes	58,579,636
Total shares reserved	116,906,160	45,891,467

Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 29, 2024

Schedule of Reconciles Cash, Cash Equivalents, and Restricted Cash

The Company reconciles cash, cash equivalents, and restricted cash reported in its consolidated balance sheets that aggregate to the beginning and ending balances shown in the Company’s consolidated statements of cash flows as follows (in thousands):

	As of
	December 29,		December 31,
	2024		2023
Cash and cash equivalents	$	13,378	$	2,593
Restricted cash		3,841		3,823
Total cash, cash equivalents, and restricted cash	$	17,219	$	6,416

Schedule of Allowance for Doubtful Accounts

The following table summarizes the allowance for credit losses as follows (in thousands):

	As of
	December 29,			December 31,
	2024			2023
Balance at beginning of period	$	(9,846	)	$	(4,812	)
Provision charged to earnings		(9,132	)		(5,083	)
Amounts written off, net of recoveries and other adjustments		17,277			49
Balance at end of period	$	(1,701	)	$	(9,846	)

Schedule of Contract Assets and Contract Liabilities Balances

Total contract assets and contract liabilities balances as of the respective dates are as follows (in thousands):

	As of
	December 29,		December 31,
	2024		2023
Contract assets	$	26,066	$	—
Contract liabilities current and noncurrent		10,921		3,478

Schedule of Revenue Recognized

Refer to the table below for the Company’s revenue recognized (in thousands):

	Fiscal Year Ended
	December 29,		December 31,
	2024		2023
Residential Solar Installations
Revenue recognized over time	$	67,460	$	84,858
Revenue recognized at a point in time		—		2,758
Total Residential Solar Installations		67,460		87,616

New Homes Business
Revenue recognized over time		32,205		—
Revenue recognized at a point in time		9,077		—
Total New Homes Business		41,282		—
Total revenue	$	108,742	$	87,616

Schedule of Estimated Useful Lives of the Assets

Depreciation and amortization are calculated using the straight-line method over the following estimated useful lives of the assets:

		Useful Lives
Manufacturing equipment		1 – 3 years
Internal-use software		3 – 5 years
Furniture & equipment		3 – 5 years
Leasehold improvements		Shorter of 3 to 5 years of the asset or the term of the lease.

Schedule of Intangible Assets of Estimated Useful Life

All intangible assets that have been determined to have definite lives are amortized over their estimated useful life as indicated below:

		Useful Lives
Trademarks		10 years
Developed technology		3 years

Summary of Significant Accounting Policies

12 Months Ended

Dec. 29, 2024

Summary of Significant Accounting Policies [Abstract]

Summary of Significant Accounting Policies

(2) Summary of Significant Accounting Policies

(a) Basis of Presentation

(b) Use of Estimates

	●	Fair value of warrant liabilities;

	●	Fair value of the forward purchase agreements

	●	Fair value of Simple Agreements for Future Equity Agreements (“SAFEs”)

	●	The reserve methodology for inventory obsolescence;

●

The reserve methodology for product warranty;

●

The reserve methodology for the allowance for credit losses;

●

Fair value of the derivative liabilities; and

●

The measurement of stock-based compensation.

(c) Concentration of Risks

Concentration of Customers

Concentration of Suppliers

(d) Cash and Cash Equivalents

(e) Restricted Cash

	As of
	December 29,		December 31,
	2024		2023
Cash and cash equivalents	$	13,378	$	2,593
Restricted cash		3,841		3,823
Total cash, cash equivalents, and restricted cash	$	17,219	$	6,416

(f) Estimated Credit Losses

The following table summarizes the allowance for credit losses as follows (in thousands):

	As of
	December 29,			December 31,
	2024			2023
Balance at beginning of period	$	(9,846	)	$	(4,812	)
Provision charged to earnings		(9,132	)		(5,083	)
Amounts written off, net of recoveries and other adjustments		17,277			49
Balance at end of period	$	(1,701	)	$	(9,846	)

(g) Contract Assets and Contract Liabilities

	As of
	December 29,		December 31,
	2024		2023
Contract assets	$	26,066	$	—
Contract liabilities current and noncurrent		10,921		3,478

(h) Inventories

(i) Revenue Recognition

Step 1. Identification of the contract(s) with a customer;

Step 2. Identification of the performance obligations in the contracts(s);

Step 3. Determination of the transaction price;

Step 4. Allocation of the transaction price to the performance obligations;

Step 5. Recognition of the revenue when, or as, the Company satisfies a performance obligation.

Residential Solar Installation Revenues

●

New Home Business Revenues

The Company’s New Homes Business sells through a network of home builders as well as its internal sales team. The Company’s contracts with customers include two primary contract types:

●

Costs to obtain and fulfill contracts

Warranties

Disaggregation of revenue

Refer to the table below for the Company’s revenue recognized (in thousands):

	Fiscal Year Ended
	December 29,		December 31,
	2024		2023
Residential Solar Installations
Revenue recognized over time	$	67,460	$	84,858
Revenue recognized at a point in time		—		2,758
Total Residential Solar Installations		67,460		87,616

New Homes Business
Revenue recognized over time		32,205		—
Revenue recognized at a point in time		9,077		—
Total New Homes Business		41,282		—
Total revenue	$	108,742	$	87,616

For the fiscal years ended December 29, 2024, and December 31, 2023, all revenue recognized was generated in the U.S.

Remaining performance obligations

Incremental costs of obtaining customer contracts

(j) Property and Equipment, Net

		Useful Lives
Manufacturing equipment		1 – 3 years
Internal-use software		3 – 5 years
Furniture & equipment		3 – 5 years
Leasehold improvements		Shorter of 3 to 5 years of the asset or the term of the lease.

(k) Internal-Use Software

(l) Cost of Revenues

(m) Advertising and Promotional Expenses

(n) Income Taxes

(o) Goodwill

(p) Comprehensive Loss

(q) Impairment of Long-Lived Assets

(r) Intangible Assets, Net

		Useful Lives
Trademarks		10 years
Developed technology		3 years

(s) Stock-Based Compensation

(t) Fair Value Measurements

●

Level 1 inputs: Unadjusted quoted prices in active markets for identical assets or liabilities accessible to the reporting entity at the measurement date.

●

The carrying amounts of cash, accounts receivable, accounts payable and accrued expenses approximate their fair value because of their short-term nature (classified as Level 1).

(u) Net Loss Per Share

(v) Leases

(w) Warrant Liabilities

(x) Forward Purchase Agreements

(y) Recently Adopted Accounting Pronouncements

(z) Accounting Pronouncements Not Yet Adopted

Accrued Expenses and Other Current Liabilities (Details)	Dec. 29, 2024	Dec. 31, 2023
Accrued Expenses and Other Current Liabilities [Abstract]
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accrued expenses and other current liabilities	Accrued expenses and other current liabilities
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accounts payable	Accounts payable

Other Income (Expense), Net (Tables)

12 Months Ended

Dec. 29, 2024

Other Income (Expense), Net [Abstract]

Schedule of Other Income (Expense), Net

Other income (expense), net consist of the following (in thousands):

	Fiscal Year Ended
	December 29,			December 31,
	2024			2023
Change in fair value of redeemable convertible preferred stock warrant liability	$	1,310		$	8,513
Change in fair value of Carlyle Warrants⁽¹⁾		2,869			14,373
Change in fair value of FACT public, private placement and working capital warrants		(1,258	)		6,424
Loss on conversion of SAFE agreements to common stock with related party		(1,250	)		—
Change in fair value of SAFE Agreement with related party		616			—
Loss on sale of equity securities		—			(4,154	)
Loss on CS Solis debt extinguishment		—			(10,338	)
Bonus shares issued in connection with the Mergers⁽²⁾		—			(2,394	)
Issuance of forward purchase agreements⁽³⁾		—			76
Change in fair value of forward purchase agreement liabilities⁽⁴⁾		337			(3,906	)
Loss on issuance of shares in connection with the forward purchase agreements⁽⁵⁾		—			(35,490	)
Loss on discontinued Solaria business and other, net		—			(2,966	)
Loss on issuance of derivative liability⁽⁶⁾		(24,688	)		—
Gain on remeasurement of derivative liabilities⁽⁷⁾		33,986			—
Other financing costs		(3,769	)		—
Other, net		(221	)		—
Total Other income (expense), net	$	7,932		$	(29,862	)

(1)	Deemed to be a related party in the fiscal year ended December 29, 2024. Refer to Note 15 – Borrowings and Derivative Liabilities for details.

(2)	Includes $0.7 million of other expense for the fiscal year ended December 31, 2023, for bonus shares issued to related parties in connection with the Mergers.

(3)	Includes $0.4 million of other income for the fiscal year ended December 31, 2023, for forward purchase agreements entered into with related parties.

(4)	Includes income of $0.1 million and $9.1 million of other expenses for the fiscal years ended December 29, 2024, and December 31, 2023, for the change in fair value of FPAs entered into with related parties.

(5)	Includes $30.7 million of other expense the fiscal year ended December 31, 2023 for shares issued to related parties in connection with the forward purchase agreements.

(6)	Includes a loss of $3.0 million on the issuance of a derivative liability with a related party in the fiscal year ended December 29, 2024. Refer to Note 15 – Borrowings and Derivative Liabilities for details.

(7)	Includes a gain of $0.3 million on the change in the fair value of derivative liabilities with related parties in the fiscal year ended December 29, 2024. Refer to Note 15 – Borrowings and Derivative Liabilities for details.

Property and Equipment, Net - Schedule of Property and Equipment, Net (Details) - USD ($) $ in Thousands	Dec. 29, 2024	Dec. 31, 2023
Schedule of Property and Equipment, Net [Line Items]
Total property and equipment	$ 6,409	$ 7,928
Less: accumulated depreciation and amortization	(916)	(3,611)
Total property and equipment, net	5,493	4,317
Internal-use software [Member]
Schedule of Property and Equipment, Net [Line Items]
Total property and equipment	420	6,993
Manufacturing equipment [Member]
Schedule of Property and Equipment, Net [Line Items]
Total property and equipment	73	131
Furniture and equipment [Member]
Schedule of Property and Equipment, Net [Line Items]
Total property and equipment	724	96
Vehicles [Member]
Schedule of Property and Equipment, Net [Line Items]
Total property and equipment	5,174
Leasehold improvements [Member]
Schedule of Property and Equipment, Net [Line Items]
Total property and equipment	$ 18	$ 708

Summary of Significant Accounting Policies - Schedule of Allowance for Doubtful Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2024	Dec. 31, 2023
Schedule of Allowance For Doubtful Accounts [Abstract]
Balance at beginning of period	$ (9,846)	$ (4,812)
Provision charged to earnings	(9,132)	(5,083)
Amounts written off, net of recoveries and other adjustments	17,277	49
Balance at end of period	$ (1,701)	$ (9,846)

Summary of Significant Accounting Policies - Schedule of Estimated Useful Lives of the Assets (Details)	Dec. 29, 2024
Minimum [Member] \| Manufacturing equipment [Member]
Schedule of Estimated Useful Lives of the Assets [Line Items]
Estimated useful lives of the assets	1 year
Minimum [Member] \| Internal-use software [Member]
Schedule of Estimated Useful Lives of the Assets [Line Items]
Estimated useful lives of the assets	3 years
Minimum [Member] \| Furniture & equipment [Member]
Schedule of Estimated Useful Lives of the Assets [Line Items]
Estimated useful lives of the assets	3 years
Minimum [Member] \| Leasehold improvements [Member]
Schedule of Estimated Useful Lives of the Assets [Line Items]
Estimated useful lives of the assets	3 years
Maximum [Member] \| Manufacturing equipment [Member]
Schedule of Estimated Useful Lives of the Assets [Line Items]
Estimated useful lives of the assets	3 years
Maximum [Member] \| Internal-use software [Member]
Schedule of Estimated Useful Lives of the Assets [Line Items]
Estimated useful lives of the assets	5 years
Maximum [Member] \| Furniture & equipment [Member]
Schedule of Estimated Useful Lives of the Assets [Line Items]
Estimated useful lives of the assets	5 years
Maximum [Member] \| Leasehold improvements [Member]
Schedule of Estimated Useful Lives of the Assets [Line Items]
Estimated useful lives of the assets	5 years

Segment Information

12 Months Ended

Dec. 29, 2024

Segment Information [Abstract]

Segment Information

(22) Segment Information

The segment information is presented on a basis that is consistent with the Company’s internal management reporting. The Company’s Chief Executive Officer (“CEO”) is the Chief Operating Decision Maker (“CODM”). The CODM manages the Company and report financial results based on two reportable segments which are the same as our operating segments. CODM evaluates the performance of these reportable segments and allocates resources to make operating decisions based on certain financial information, including segmented internal income/(loss) from continuing operations prepared on a basis consistent with U.S. GAAP. The measurement criteria is based on their operating revenue and operating income (loss) and excluding any corporate costs which are not allocatable to the operating segments. The CODM’s measurement criteria does not include segment assets. During the periods presented, the Company reported its financial performance through the following two reportable segments; Residential Solar Installation and New Homes Business.

Residential Solar Installation. This segment performs solar system, storage and battery installations for residential homeowners.

New Homes Business. This segment is new in fiscal year 2024 as a result of the SunPower Acquisition which occurred in the fourth quarter of fiscal 2024. The Company developed a method to allocate direct expenses for the respective reportable segments. This segment performs solar system installations for new home builders.

	Fiscal Year Ended December 29, 2024
(in thousands)	Residential Solar Installation			New Homes Business		Total
Operating revenues	$	67,460		$	41,282	$	108,742

Less:
Cost of revenues		45,266			23,974		69,240
Sales commissions		23,388			1,202		24,590
Sales and marketing		6,827			—		6,827
General and administrative⁽¹⁾		9,805			3,232		13,037
Operating income (loss)		(17,826	)		12,874		(4,952	)

Reconciliation of segment loss from continuing operations before income taxes:
Unallocated amounts:
General corporate expense		—			—		(63,557	)
Interest expense		—			—		(16,223	)
Interest income		—			—		19
Other income (expense), net		—			—		7,932
Gain on troubled debt restructuring		—			—		22,337
Loss from continuing operations before taxes	$	—		$	—	$	(54,444	)

⁽¹⁾

	Fiscal Year Ended December 31, 2023
(in thousands)	Residential Solar Installation			New Homes Business		Total
Operating revenues	$	87,616		$	—	$	87,616

Less:
Cost of revenues		69,828			—		69,828
Sales commissions		31,127			—		31,127
Sales and marketing		6,920			—		6,920
General and administrative⁽¹⁾		32,099			—		32,099
Operating income (loss)		(52,358	)		—		(52,358	)

Reconciliation of segment loss from continuing operations before income taxes:
Unallocated amounts:
General corporate expense		—			—		—
Interest expense		—			—		(14,033	)
Interest income		—			—		36
Other income (expense), net		—			—		(29,862	)
Gain on troubled debt restructuring		—			—		—
Loss from continuing operations before taxes	$	—		$	—	$	(96,217	)

⁽¹⁾

For the year ended December 31, 2023, depreciation and amortization expense was $0.9 million for the Residential Solar Installation reportable segment.

Assets by segment are as follows (in thousands):

	As of
	December 29,		December 31,
	2024		2023
Residential Solar Installation	$	66,145	$	47,322
New Homes Business		78,321		—
Total assets	$	144,466	$	47,322

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

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Forward Purchase Agreements (Details) - USD ($)
$ / shares in Units, $ in Thousands

12 Months Ended

Jul. 17, 2024

Dec. 18, 2023

Dec. 29, 2024

Dec. 31, 2023

Jun. 14, 2024

Other expense

$ 30,700

Ordinary shares, par value (in Dollars per share)

2,450,000

$ 0.0001

Price per share (in Dollars per share)

10.56

Reset floor price (in Dollars per share)

Terminated price (in Dollars per share)

$ 2

Fair value of assets

$ 3,841

$ 3,823

Anti-dilution provisions

Other income (expense)

^[1]

$ 7,932

$ (29,862)

Forward Purchase Agreements [Member]

Aggregate share purchase (in Shares)

6,300,000

5,670,000

6,720,000

Fair value of assets

$ 100

Anti-dilution provisions

$ 10,000

Other income (expense)

$ 35,500

Fair value of forward purchase liabilities

$ 300

3,900

VWAP [Member]

Price per share (in Dollars per share)

$ 1

FPA [Member]

Fair value of FPA liability income

Due to related parties

$ 3,500

3,800

400

Change in Fair Value of FPA liability with Related Parties Expense

9,100

FPA [Member] | Related Party [Member]

Fair value of FPA liability income

Due to related parties

1,300

$ 3,200

100

Change in Fair Value of FPA liability with Related Parties Expense

$ 8,700

Maximum [Member]

Reset floor price (in Dollars per share)

$ 5

$ 3

Minimum [Member]

Reset floor price (in Dollars per share)

$ 3

$ 1

Common Stock [Member]

Common Stock [Member] | Forward Purchase Agreements [Member]

2,918,837

Schedule of Consolidated Statements of Operations and Comprehensive Loss Related to Discontinued Operations

6,720,000

[1]

Other income (expense), net in the fiscal year ended December 29, 2024 includes the following related party transactions; (i) $0.7 million of expense in connection with the conversion of SAFE Agreements into shares of common stock and the change in the fair value of SAFE Agreements (defined in the notes to the consolidated financial statements), (ii) $3.0 million of expense in connection with the loss on issuance of a derivative liability and $0.3 million of income due to the change in the value of derivative liabilities, and (iii) income of $0.1 million of expense in connection with the change in the fair value of forward purchase agreements. Other income (expense), net in the fiscal year ended December 31, 2023, includes the following related party transaction; $0.7 million of expense for bonus shares issued in connection with the Mergers; $0.4 million of forward purchase agreements entered into and $9.1 million of change in the fair value of the forward purchase agreements; and $30.7 million of expense for shares issued in connection with the forward purchase agreements. Other income (expense), net in the fiscal year ended December 31, 2023, includes the following related party transaction; $0.7 million of expense for bonus shares issued in connection with the Mergers; $0.4 million of forward purchase agreements entered into and $9.1 million of change in the fair value of the forward purchase agreements; and $30.7 million of expense for shares issued in connection with the forward purchase agreements.

Organization (Tables)

12 Months Ended

Dec. 29, 2024

Organization [Abstract]

Components of amounts reflected in the consolidated statements of operations and comprehensive loss related to discontinued operations are presented in the table, as follows (in thousands):

	Fiscal Year Ended
	December 29,			December 31,
	2024			2023
Revenues	$	—		$	29,048
Cost of revenues		—			30,609
Gross loss		—			(1,561	)
Operating expenses:
Sales and marketing		—			6,855
General and administrative		2,007			17,472
Total operating expenses		2,007			24,327
Loss from discontinued operations		(2,007	)		(25,888	)
Other income, net		—			31
Loss from discontinued operations before income taxes		(2,007	)		(25,857	)
Income tax benefit		—			4
Loss from discontinued operations, net of tax		(2,007	)		(25,853	)
Impairment loss from discontinued operations		—			(147,505	)
Net loss from discontinued operations	$	(2,007	)	$	(173,358	)

Tabular disclosure of information related to a disposal group. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component.

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Schedule of Provisional Fair Value of Identifiable Assets Acquired and Liabilities Assumed

Business Combination (Tables)

12 Months Ended

Dec. 29, 2024

Business Combination [Abstract]

The following table summarizes the provisional fair value of identifiable assets acquired and liabilities assumed (in thousands):

Net assets acquired:
Cash	$	1,000
Accounts receivable		11,999
Contract assets		4,615
Inventories		27,706
Prepaid expenses and other current assets		2,219
Property and equipment		5,867
Operating lease right-of-use assets		2,506
Other noncurrent assets		541
Intangibles		18,100
Deferred revenue		(7,361	)
Accounts payable		(5,270	)
Accrued expenses and other current liabilities		(13,955	)
Operating lease liabilities		(2,963	)
Other long-term liabilities		(8,980	)
Fair value of net assets acquired		36,024
Consideration transferred	$	54,500
Goodwill recognized	$	18,476

Schedule of Pro Forma

The pro forma results do not necessarily reflect the actual results of operations of the combined business (in thousands).

	Unaudited
	Fiscal Year Ended
	December 29,			December 31,
	2024			2023

Pro forma revenue	$	381,860		$	697,651
Pro forma net loss from continuing operations		(283,122	)		(320,589	)

Related Party Transactions

12 Months Ended

Dec. 29, 2024

Related Party Transactions

(23) Related Party Transactions

Refer to the following notes to the Company’s consolidated financial statements for details regarding the related party transactions entered into by the Company; Note 1(a) – Description of Business; Note 3 – Reverse Recapitalization, Note 6 – Forward Purchase Agreements, Note 12 – Other Income (Expense), Net; Note 15 – Borrowings and Derivative Liabilities and Note 16 – SAFE Agreements. All other related party transactions are described herein.

In December 2023, the Company entered into separate common stock purchase agreements with the Rodgers Massey Freedom and Free Markets Charitable Trust and the Rodgers Massey Revocable Living Trust , each a related party affiliated with Thurman J. Rodgers, the Company’s Chief Executive Officer and a director, for an aggregate purchase price of $5.0 million.

The Company determined that SameDay Solar became a related party in fiscal 2024 with which the Company does business. Revenue, cost of revenue and commission expense with SameDay Solar were $1.6 million and $0.6 million and $1.2 million for the fiscal year ended December 29, 2024.

The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.

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Income Taxes - Schedule of Loss from Continuing Operations Before Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2024	Dec. 31, 2023
Schedule of Loss from Continuing Operations Before Provision for Income Taxes [Abstract]
Domestic	$ (54,444)	$ (94,222)
Foreign		(1,995)
Total	$ (54,444)	$ (96,217)

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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Schedule of Other Income (Expense), Net [Line Items]

Other Income (Expense), Net - Schedule of Other Income (Expense), Net (Details) - USD ($)
$ in Thousands

12 Months Ended

Dec. 29, 2024

Dec. 31, 2023

Change in fair value

^[1]

$ 33,986

Change in fair value of FACT public, private placement and working capital warrants

(1,258)

6,424

Loss on conversion of SAFE agreements to common stock with related party

(1,250)

Change in fair value of SAFE Agreement with related party

616

Loss on sale of equity securities

(4,154)

Loss on CS Solis debt extinguishment

(10,338)

Bonus shares issued in connection with the Mergers

^[2]

(2,394)

Issuance of forward purchase agreements

^[3]

Change in fair value of forward purchase agreement liabilities

^[4]

337

(3,906)

Loss on issuance of shares in connection with the forward purchase agreements

^[5]

(35,490)

Loss on discontinued Solaria business and other, net

(2,966)

Loss on issuance of derivative liability

^[6],[7]

(24,688)

Gain on remeasurement of derivative liability

^[8]

33,986

Other financing costs

(3,769)

Other, net

(221)

Total Other income (expense), net

^[9]

7,932

(29,862)

Change in fair value of redeemable convertible preferred stock warrant liability [Member]

Schedule of Other Income (Expense), Net [Line Items]

Change in fair value

1,310

8,513

Change in fair value of Carlyle Warrants [Member]

Schedule of Other Income (Expense), Net [Line Items]

Change in fair value

^[10]

$ 2,869

$ 14,373

[1]	Includes $0.3 million gain in connection with the change in the fair value of derivative liabilities issued to the Massey Trust and Carlyle (as later defined in Note 15 – Borrowings and Derivative Liabilities) with related parties.
[2]	Includes $0.7 million of other expense for the fiscal year ended December 31, 2023, for bonus shares issued to related parties in connection with the Mergers.
[3]	Includes $0.4 million of other income for the fiscal year ended December 31, 2023, for forward purchase agreements entered into with related parties.
[4]	Includes income of $0.1 million and $9.1 million of other expenses for the fiscal years ended December 29, 2024, and December 31, 2023, for the change in fair value of FPAs entered into with related parties.
[5]	Includes $30.7 million of other expense the fiscal year ended December 31, 2023 for shares issued to related parties in connection with the forward purchase agreements.
[6]	Includes a loss of $3.0 million on the issuance of a derivative liability with a related party in the fiscal year ended December 29, 2024. Refer to Note 15 – Borrowings and Derivative Liabilities for details.
[7]	Includes $3.0 million loss on a derivative liability issued to the Massey Trust (as later defined in Note 15 – Borrowings and Derivative Liabilities) a related party and $0.3 of gain in connection with the change in the fair value of derivative liabilities issued to the Massey Trust and Carlyle (as later defined in Note 15 – Borrowings and Derivative Liabilities), related parties, during the fiscal year ended December 29, 2024.
[8]	Includes a gain of $0.3 million on the change in the fair value of derivative liabilities with related parties in the fiscal year ended December 29, 2024. Refer to Note 15 – Borrowings and Derivative Liabilities for details.
[9]	Other income (expense), net in the fiscal year ended December 29, 2024 includes the following related party transactions; (i) $0.7 million of expense in connection with the conversion of SAFE Agreements into shares of common stock and the change in the fair value of SAFE Agreements (defined in the notes to the consolidated financial statements), (ii) $3.0 million of expense in connection with the loss on issuance of a derivative liability and $0.3 million of income due to the change in the value of derivative liabilities, and (iii) income of $0.1 million of expense in connection with the change in the fair value of forward purchase agreements. Other income (expense), net in the fiscal year ended December 31, 2023, includes the following related party transaction; $0.7 million of expense for bonus shares issued in connection with the Mergers; $0.4 million of forward purchase agreements entered into and $9.1 million of change in the fair value of the forward purchase agreements; and $30.7 million of expense for shares issued in connection with the forward purchase agreements. Other income (expense), net in the fiscal year ended December 31, 2023, includes the following related party transaction; $0.7 million of expense for bonus shares issued in connection with the Mergers; $0.4 million of forward purchase agreements entered into and $9.1 million of change in the fair value of the forward purchase agreements; and $30.7 million of expense for shares issued in connection with the forward purchase agreements.
[10]	Deemed to be a related party in the fiscal year ended December 29, 2024. Refer to Note 15 – Borrowings and Derivative Liabilities for details.

Goodwill and Other Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2024	Dec. 31, 2023	Sep. 30, 2024
Goodwill and Other Intangible Assets [Line Items]
Goodwill	$ 18,476
Aggregate amortization expense for intangible assets	$ 700
Weighted average remaining life	8 years 1 month 6 days
Residential Solar Installation [Member]
Goodwill and Other Intangible Assets [Line Items]
Goodwill			$ 18,300
New Homes Business [Member]
Goodwill and Other Intangible Assets [Line Items]
Goodwill			$ 200

Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 280
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Reference 2: http://www.xbrl.org/2003/role/exampleRef
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Reference 3: http://www.xbrl.org/2003/role/exampleRef
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Reference 4: http://www.xbrl.org/2003/role/exampleRef
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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-Paragraph 1
-Subparagraph (SX 210.5-02(15))
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Reference 8: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
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Stock-Based Compensation (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
Stock-Based Compensation (Details) - USD ($) $ in Millions	Jul. 31, 2023	Dec. 29, 2024	Dec. 31, 2023
Stock-Based Compensation [Line Items]
Stock options vested		$ 1.9	$ 3.8
Percentage of expected dividends		0.00%	0.00%
Number of vesting options		788,192	52,167
Vested options		4,343,172	280,412
Incremental stock-based compensation expense		$ 0.7	$ 0.1
Stock Option [Member]
Stock-Based Compensation [Line Items]
Expected term		10 years
Percentage of expected dividends		0.00%
Service-Based Options [Member]
Stock-Based Compensation [Line Items]
Unrecognized stock-based compensation costs		$ 15.1
Weighted-average period of service-based options		2 years 2 months 12 days
RSU [Member]
Stock-Based Compensation [Line Items]
Unrecognized stock-based compensation costs		$ 4.2
Weighted-average period of service-based options		4 years 8 months 12 days
2023 Incentive Equity Plan [Member]
Stock-Based Compensation [Line Items]
Shares issued under plan	8,763,322
Percentage of common stock outstanding	4.00%
ISOs under the 2023 Plan [Member]
Stock-Based Compensation [Line Items]
Shares issued under plan	26,289,966

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 29, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 13,378	$ 2,593
Accounts receivable, net	25,842	26,281
Inventories	22,110	3,058
Prepaid expenses and other current assets	8,206	5,817
Contract assets, current portion	26,066
Total current assets	95,602	37,749
Restricted cash	3,841	3,823
Property and equipment, net	5,493	4,317
Operating lease right-of-use assets	3,041	1,235
Other noncurrent assets	628	198
Goodwill	18,476
Intangible assets, net	17,385
Total assets	144,466	47,322
Current liabilities:
Accounts payable	7,980	13,122
Accrued expenses and other current liabilities	56,081	27,870
Notes payable, net		28,657
Contract liabilities	10,003	2,423
Debt with CS Solis		33,280
Forward purchase agreement liabilities with related parties	1,274	3,232
Forward purchase agreement liabilities	2,220	599
Total current liabilities	79,442	109,183
Warranty provision, noncurrent	3,437	3,416
Warrant liability	1,561	9,817
Contract liabilities, noncurrent	918	1,055
Notes payable and derivative liabilities, net of current portion	92,638
Other long-term liabilities	8,553
Operating lease liabilities, net of current portion	2,263	664
Total liabilities	242,005	124,135
Commitments and contingencies (Note 19)
Stockholders’ (deficit):
Common stock, $0.0001 par value; Authorized 1,000,000,000 and 60,000,000 shares as of December 29, 2024 and December 31, 2023, respectively; issued and outstanding 73,784,645 and 49,065,361 shares as of December 29, 2024 and December 31, 2023, respectively	14	7
Additional paid-in capital	313,661	277,965
Accumulated other comprehensive loss	165	143
Accumulated deficit	(411,379)	(354,928)
Total stockholders’ (deficit)	(97,539)	(76,813)
Total liabilities and stockholders’ equity	144,466	47,322
Related Party
Current liabilities:
Notes payable to related parties	1,500
SAFE Agreement with related party	384
Notes payable and derivative liabilities with related parties	$ 53,193

Organization (Details) - USD ($) $ / shares in Units, $ in Thousands			1 Months Ended			12 Months Ended
	Sep. 30, 2024	Jul. 17, 2024	Oct. 31, 2023	Jul. 31, 2023	Mar. 31, 2023	Dec. 29, 2024	Dec. 31, 2023
Organization [Line Items]
Date of incorporation						Feb. 22, 2010
Shares of complete solaria common stock						116,906,160	45,891,467
Purchase price per share (in Dollars per share)						$ 10
Excess of gross proceeds (in Dollars)							$ 5,000
Originally issued shares		2,450,000
Acquisition of assets consideration (in Dollars)	$ 54,500
Net cash acquired, (in Dollars per share)	$ 1
Net loss from discontinued operations (in Dollars)						$ (2,007)	(173,358)
Loss from continuing operations (in Dollars)						(54,444)	(96,197)
Net loss (in Dollars)						(56,451)	(269,555)
Accumulated deficit (in Dollars)						(411,379)	(354,928)
Current debt (in Dollars)						1,500
Cash and cash equivalents (in Dollars)						$ 13,378	2,593
PIPE Investors [Member]
Organization [Line Items]
Shares acquired						1,570,000
Aggregate purchase price (in Dollars)						$ 15,700
Additional shares issued						60,000
Subscription Agreements [Member]
Organization [Line Items]
Excess of gross proceeds (in Dollars)						$ 3,500
New Money PIPE Investors [Member]
Organization [Line Items]
Shares acquired						120,000
Purchase price per share (in Dollars per share)						$ 5
Aggregate purchase price (in Dollars)						$ 600
New Money PIPE Subscription Agreement [Member]
Organization [Line Items]
Additional shares issued						60,000
Complete Solaria Common Stock [Member]
Organization [Line Items]
Shares of complete solaria common stock						25,494,332
Additional shares issued						193,976
Complete Solaria Common Stock [Member] \| Sponsor [Member]
Organization [Line Items]
Additional shares issued						150,000
Class A Ordinary Shares [Member]
Organization [Line Items]
Shares of complete solaria common stock				6,300,000
Purchased shares				1,161,512
Shares exercised					34,500,000
Right to redeem shares					7,784,739
Converted shares					1
Class A Ordinary Shares [Member] \| FACT [Member]
Organization [Line Items]
Originally issued shares					23,256,504
Class A Ordinary Shares [Member] \| FACT Investors [Member]
Organization [Line Items]
Remaining shares outstanding					11,243,496
Class B Ordinary Share [Member]
Organization [Line Items]
Converted shares						1
Maxeon Ordinary Shares [Member]
Organization [Line Items]
Shares acquired			1,100,000
Aggregate purchase price (in Dollars)			$ 11,000
Loss from continuing operations (in Dollars)							4,200
Common Stock [Member]
Organization [Line Items]
Excess of gross proceeds (in Dollars)
Originally issued shares						2,918,837
Shares exercised						398,883	67,533
Right to redeem shares							13,458,293
Net loss (in Dollars)
Common Stock [Member] \| Complete Solaria Common Stock [Member]
Organization [Line Items]
Aggregate of shares				420,000
Common Stock [Member] \| Class A Ordinary Shares [Member]
Organization [Line Items]
Redemption amount (in Dollars)					$ 82,200

Stock-Based Compensation - Schedule of Stock-Based Compensation Expense (Details) - Share-Based Payment Arrangement [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2024	Dec. 31, 2023
Schedule of Stock-Based Compensation Expense [Line Items]
Loss from discontinued operations, net of tax		$ 2,376
Total stock-based compensation expense	3,067	5,199
Cost of revenues [Member]
Schedule of Stock-Based Compensation Expense [Line Items]
Total stock-based compensation expense from continuing operations	157	84
Sales and marketing [Member]
Schedule of Stock-Based Compensation Expense [Line Items]
Total stock-based compensation expense from continuing operations	598	487
General and administrative [Member]
Schedule of Stock-Based Compensation Expense [Line Items]
Total stock-based compensation expense from continuing operations	$ 2,312	$ 2,252

Fair Value Measurements

12 Months Ended

Dec. 29, 2024

Fair Value Measurements [Abstract]

Fair Value Measurements

(5) Fair Value Measurements

The following table sets forth the Company’s financial assets and liabilities that were measured at fair value, on a recurring basis (in thousands):

	As of December 29, 2024
	Level 1		Level 2		Level 3		Total
Financial Assets
Restricted cash	$	3,841	$	—	$	—	$	3,841
Total	$	3,841	$	—	$	—	$	3,841
Financial Liabilities
July 2024 derivative liability⁽¹⁾	$	—	$	—	$	34,690	$	34,690
September 2024 derivative liability⁽¹⁾		—		—		62,432		62,432
Forward purchase agreements⁽²⁾		—		—		3,494		3,494
Public warrants		—		—		862		862
Private placement warrants		—		—		627		627
Working capital warrants		—		—		72		72
SAFE Agreement with related party		—		—		384		384
Total	$	—	$	—	$	102,561	$	102,561

	As of December 31, 2023
	Level 1		Level 2		Level 3		Total
Financial Assets
Restricted cash	$	3,823	$	—	$	—	$	3,823
Total	$	3,823	$	—	$	—	$	3,823
Financial Liabilities
Carlyle Warrants	$	—	$	—	$	9,515	$	9,515
Public warrants		167		—		—		167
Private placement warrants		—		122		—		122
Working capital warrants		—		13		—		13
Replacement warrants		—		—		1,310		1,310
Forward purchase agreements⁽¹⁾		—		—		3,831		3,831
Total	$	167	$	135	$	14,656	$	14,958

⁽¹⁾	A portion of these balances are with related parties. Refer to Note 15 – Borrowings and Derivative Liabilities for details.

⁽²⁾	A portion of these balances are with related parties. Refer to Note 6 – Forward Purchase Agreements for details.

Subsequent to issuance, changes in the fair value of liability classified warrants, forward purchase agreements and SAFEs are recorded within other income (expense), net in the Company’s consolidated statements of operations and comprehensive loss.

Derivative liabilities

The Company issued derivative liabilities in conjunction with the issuance of certain convertible notes in July 2024 and September 2024 (refer to Note 15 – Borrowings and Derivative Liabilities). The Company valued the derivative liabilities as of their issuance date and as of December 29, 2024 using a binomial lattice model, which includes level 3 unobservable inputs. The key inputs used were dividend yield, the Company’s common stock price, volatility, risk-free rate and the expected term of the derivative liabilities. The derivative liability valuation included the following inputs as of December 29, 2024:

	September Notes			July Notes
Coupon rate		7.0	%		12.0	%
Conversion rate		467.84			595.24
Conversion price	$	2.14		$	1.68
Common stock price	$	1.81		$	1.81
Dividend Yield		0.0	%		0.0	%

Carlyle Warrants

As part of the Company’s amended and restated warrant agreement with CRSEF Solis Holdings, LLC and its affiliates (“Carlyle”), the Company issued Carlyle a warrant to purchase shares of Complete Solaria Common Stock at a price per share of $0.01. Refer to Note 14 – Warrants for further details. In connection with an exchange of debt effective July 1, 2024, as discussed in Note 15 – Borrowings and Derivative Liabilities, the number of shares expected to be issued in connection with the Carlyle Warrant became fixed and the Carlyle Warrant was reclassified from liability to equity. Accordingly, the Carlyle Warrant is not subject to a fair value measurement as of December 29, 2024.

The Company valued the Carlyle Warrants as of December 31, 2023, based on a Black-Scholes Option Pricing Method, which included the following inputs:

	As of December 31,
	2023
Expected term		7.0 years
Expected volatility		77	%
Risk-free interest rate		3.92	%
Expected dividend yield		0.00	%

Public Warrants

The public warrants are measured at fair value on a recurring basis. The public warrants were valued based on the closing price of the publicly traded instrument.

Private Placement and Working Capital Warrants

The private placement and working capital warrants are measured at fair value. The Company valued the private placement and working capital warrants, based on a Black-Scholes Option Pricing Method, which included the following inputs:

	As of December 29,
	2024
Expected term		3.56 years
Expected volatility		68.1	%
Risk-free interest rate		4.39	%
Expected dividend yield		0.00	%

As of December 31, 2023, the private placement and working capital warrants were valued using observable inputs for similar publicly traded instruments.

Forward Purchase Agreement Liabilities

FPAs are measured at fair value on a recurring basis using a Monte Carlo simulation analysis. The expected volatility is determined based on the historical equity volatility of comparable companies over a period that matches the simulation period, which included the following inputs:

	As of
	December 29,			December 31,
	2024			2023
VWAP	$	1.78		$	1.66
Simulation period		0.55 years			1.55 years
Risk-free rate		4.28	%		4.48	%
Volatility		117	%		95	%

SAFE Agreement

The SAFE Agreement was valued based on a conversion probability of 50% based on historical SAFE agreements and a 50% discount rate at the time of conversion as of December 29, 2024.

Replacement Warrants

There were no replacement warrants as of December 29, 2024. The Company valued the Replacement Warrants as of December 31, 2023, based on a Black-Scholes Option Pricing Method, which included the following inputs:

	As of December 31,
	2023
Expected term		0.3 years
Expected volatility		78.5	%
Risk-free interest rate		5.4	%
Expected dividend yield		0	%

The following table sets forth the Company’s financial liabilities that were not measured at fair value, on a non-recurring basis (in thousands):

	As of December 29, 2024
			Fair value
	Carrying value		Estimated fair value		Level 1		Level 2		Level 3		Total
Financial Liabilities
July 2024 Notes	$	17,965	$	21,390	$	—	$	—	$	21,390	$	21,390
July 2024 Notes - related parties		24,632		33,323		—		—		33,323		33,323
September 2024 Notes		5,636		77,245		—		—		77,245		77,245
September 2024 Notes - related parties		476		8,583		—		—		8,583		8,583
Total	$	48,709	$	140,541	$	—	$	—	$	140,541	$	140,541

As of December 29, 2024, the July 2024 Notes and the September 2024 Notes were fair valued using a binomial lattice model, which includes Level 3, unobservable inputs. The key inputs used are consistent with those used to fair value the derivative liabilities as discussed under Derivative liabilities above.

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
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Schedule of Reserved Shares of Common Stock

Common Stock (Tables)

12 Months Ended

Dec. 29, 2024

Common Stock [Abstract]

The Company has reserved shares of common stock for issuance related to the following:

	As of
	December 29,		December 31,
	2024		2023
Common stock warrants		31,670,265		27,637,266
Employee stock purchase plan		2,628,996		2,628,996
Stock options and RSUs, issued and outstanding		11,979,368		11,774,743
Stock options and RSUs, authorized for future issuance		2,577,895		3,850,462
SAFE Agreement		2,750,000		—
Forward purchase agreements		6,720,000		—
Convertible notes		58,579,636		—
Total shares reserved		116,906,160		45,891,467

Commitments and Contingencies - Schedule of Future Minimum Lease Payments Under Non-Cancelable Operating Lease (Details) $ in Thousands	Dec. 29, 2024 USD ($)
Schedule of Future Minimum Lease Payments Under Non-Cancelable Operating Lease [Abstract]
Finance Leases, 2025	$ 2,285
Operating Leases, 2025	1,687
Finance Leases, 2026	1,749
Operating Leases, 2026	1,605
Finance Leases, 2027	247
Operating Leases, 2027	801
Finance Leases, Total undiscounted liabilities	4,281
Operating Leases, Total undiscounted liabilities	4,093
Finance Leases, Less: imputed interest	(352)
Operating Leases, Less: imputed interest	(413)
Finance Leases, Total lease liabilities	3,929
Operating Leases, Total lease liabilities	$ 3,680

Goodwill and Other Intangible Assets - Schedule of Estimated Amortization Expense Related to Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 29, 2024	Dec. 31, 2023
Schedule of Estimated Amortization Expense Related to Intangible Assets [Abstract]
2025	$ 2,860
2026	2,860
2027	2,485
2028	1,360
2029	1,360
Thereafter	6,460
Total	$ 17,385

Basic and Diluted Net Loss Per Share (Tables)

12 Months Ended

Dec. 29, 2024

Basic and Diluted Net Loss Per Share [Abstract]

Schedule of Basic and Diluted Net Loss Per Share Attributable to Common Stockholders

The following table sets forth the computation of the Company’s basic and diluted net loss per share attributable to common stockholders for the fiscal years ended December 29, 2024 and December 31, 2023 (in thousands, except share and per share amounts):

	Fiscal Year Ended
	December 29,			December 31,
	2024			2023
Numerator for basic loss per share:
Net loss from continuing operations	$	(54,444	)	$	(96,197	)
Net loss from discontinued operations		(2,007	)		(25,853	)
Impairment loss from discontinued operations		—			(147,505	)
Net loss		(56,451	)		(269,555	)
Numerator for diluted loss per share
Impact of September 2024 Notes derivative liability and interest expense, net of tax		(35,886	)		—
Net loss	$	(92,337	)	$	(269,555	)
Denominator:
Weighted average shares:
Denominator for basic loss per share		66,655,837			24,723,370
Effect of dilutive securities:
September 2024 Notes derivative liability		9,137,711			—
Denominator for diluted loss per share		75,793,548			24,723,370
Net loss per share:
Continuing operations – basic	$	(0.82	)	$	(3.89	)
Discontinued operations - basic		(0.03	)		(1.05	)
Net loss - basic	$	(0.85	)	$	(4.94	)

Continuing operations – diluted	$	(1.19	)	$	(3.89	)
Discontinued operations – diluted		(0.03	)		(1.05	)
Net loss – diluted	$	(1.22	)	$	(4.94	)

Schedule of Potential Common Shares Excluded from Computation of Diluted Net Loss Per Share of Common Stock

The following table presents the potential common shares outstanding that were excluded from the computation of diluted net loss per share of common stock as of the periods presented because including them would have been anti-dilutive:

	Fiscal Year Ended
	December 29,		December 31,
	2024		2023
Common stock warrants		25,434,069		23,024,556
Convertible notes		27,364,717		—
Stock options and RSUs issued and outstanding		11,979,368		11,774,743
Potential common shares excluded from diluted net loss per share		64,778,154		34,799,299

Prepaid Expenses and Other Current Assets - Schedule of Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands	Dec. 29, 2024	Dec. 31, 2023
Schedule of Prepaid Expenses and Other Current Assets [Abstract]
Inventory deposits	$ 3,407	$ 616
Deferred costs	3,759
Prepaid sales commissions		4,185
Other	1,040	1,016
Total prepaid expenses and other current assets	$ 8,206	$ 5,817

Income Taxes - Schedule of Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2024	Dec. 31, 2023
Schedule of Unrecognized Tax Benefits [Abstract]
Unrecognized tax benefits as of beginning of year	$ 53,153	$ 1,335
Increases related to prior year tax positions		5
Increases related to current year tax positions		51,813
Decreases related to prior year tax positions	(53,153)
Unrecognized tax benefits as of end of year		$ 53,153

Borrowings and Derivative Liabilities

12 Months Ended

Dec. 29, 2024

Borrowings and Derivative Liabilities [Abstract]

Borrowings and Derivative Liabilities

(15) Borrowings and Derivative Liabilities

The Company’s borrowings and derivative liabilities consisted of the following (in thousands):

	As of
	December 29,			December 31,
	2024			2023
July 2024 Notes	$	17,965		$	—
July 2024 Notes derivative liability		13,563			—
July 2024 Notes – related parties		24,632			—
July 2024 derivative liability – related parties		21,127			—
September 2024 Notes		5,636			—
September 2024 Notes derivative liability		55,474			—
September 2024 Notes – related party		476			—
September 2024 Notes – derivative liability – related party		6,958			—
2018 Bridge Notes		—			11,031
Revolver Loan		1,500			5,168
Secured Credit Facility		—			12,158
Polar Settlement Agreement		—			300
Total Notes payable		147,331			28,657
Debt in CS Solis		—			33,280
Total notes payable and convertible notes, net		—			61,937
Less current portion		(1,500	)		(61,937	)
Notes payable and convertible notes, net of current portion	$	145,831		$	—

12% Senior Unsecured Convertible Notes

In July 2024, the Company issued $46.0 million of senior unsecured convertible notes (“July 2024 Notes”) to various lenders. Of the July 2024 Notes, $18.0 million were issued to a related party affiliated with the Company’s Chief Executive Officer and a director, Rodgers Massey Revocable Living Trust, $18.0 million were issued in exchange for the cancellation of indebtedness as discussed below of which $10.0 million were issued to Carlyle which was also deemed to be a related party in the fiscal year ended December 29, 2024. The July 2024 Notes bear interest at 12% per annum, and the principal is payable in full at maturity on July 1, 2029. The interest is payable in cash on January 1 and July 1 of each year, beginning on July 1, 2025. Upon default, principal and interest become immediately due and payable. The interest rate increases by 3% in the event of default. The July 2024 Notes are convertible into the Company’s common stock at the option of the holder at a conversion rate of $1.68 per share. Holders of July 2024 Notes may convert at any time. The July 2024 Notes may be declared due and payable at the option of the holder upon event of default and upon a qualifying change of control event. The conversion option is required to be bifurcated as a derivative liability, and the Company recorded a derivative liability of $28.7 million on the issuance date with a corresponding debt discount. In connection with the issuance of the July 2024 Notes, the Company issued the Cantor Warrant, as described in Note 14 – Warrants, to purchase shares of the Company’s common stock. At issuance, the Cantor Warrant had a fair value of $1.4 million, of which $0.9 million was recorded as a debt discount, and $0.5 million was included in the calculation of the Company’s gain on the troubled debt restructuring, as discussed above. As of December 29, 2024, the carrying amount of the convertible July 2024 Notes inclusive of the fair value of the derivative liability was $77.3 million, which reflects a derivative liability of $34.7 million and convertible notes of $70.4 million, less an unamortized debt discount of $27.8 million.

Interest expense recognized on the July 2024 Notes was $2.8 million and zero in the fiscal years ended December 29, 2024 and December 31, 2023, respectively. Of the total interest expense, related party interest expense was $1.7 million and zero in the fiscal years ended December 29, 2024 and December 31, 2023, respectively. Debt discount expense recognized on the July 2024 Notes was $1.8 million and zero in the fiscal years ended December 29, 2024 and December 31, 2023, respectively. Of the total debt discount expense, related party expense was $1.1 million and zero in the fiscal years ended December 29, 2024, and December 31, 2023, respectively. There are no financial covenants. The July 2024 Notes are not in default. However, due to the Company’s delayed filing of its Form 10K for the year ended December 29, 2024, the Company will be required to pay incremental default interest of 0.5% beginning April 16, 2025, which will cease upon the Company’s filing of its Form 10K.

The effective interest rate is 33.4% and 31.7% on the July 2024 Notes’ principal amounts of $28.0 million and $18.0 million, respectively.

As of December 29, 2024, $1.3 million and $1.6 million of contingent interest which is payable upon default is included in the July 2024 Notes and July 2024 Notes - related parties, respectively.

7% Senior Unsecured Convertible Notes

In September 2024, the Company issued $66.8 million of senior unsecured convertible notes to various lenders (the “September 2024 Notes”), $4.0 million of which were issued to Rodgers Family Freedom and Free Markets Charitable Trust (“Massey Charitable Trust”), a related party and $4.0 million were issued to Rodgers Massey Revocable Living Trust (collectively with Massey Charitable Trust, “Massey Trusts”), also a related party. The September 2024 Notes bear interest at 7% per annum, and the principal is payable in full at maturity on July 1, 2029. The interest is payable in cash on January 1 and July 1 of each year, beginning on July 1, 2025. Upon default, principal and interest become immediately due and payable. The September 2024 Notes are convertible into shares of the Company’s common stock at the option of the holder at a conversion rate of $2.14 per common share. Holders of September 2024 Notes may convert at any time. The September 2024 Notes may be declared due and payable at the option of the holder upon event of default and upon a qualifying change of control event. The conversion option is required to be bifurcated as a derivative liability, and the Company recorded a derivative liability of $91.5 million on the issuance date. As the fair value of the derivative liability exceeds the proceeds received, the Company recorded a corresponding financing loss of $24.7 million and debt discount for $66.8 million as of the issuance date. In December 2024, the Company issued an additional $13.0 million of September 2024 Notes for cash. The Company recognized a $10.9 million debt discount in connection with these additional proceeds.

As of December 29, 2024, the carrying amount of the September 2024 Notes inclusive of the fair value of the derivative liability was $68.5 million, which reflects a derivative liability of $62.4 million and convertible notes of $79.8 million, less an unamortized debt discount of $73.7 million.

Interest expense recognized on the September 2024 Notes was $1.4 million and zero in the fiscal years ended December 29, 2024 and December 31, 2023, respectively. Of the total interest expense, related party interest expense was $0.2 million and zero in the fiscal years ended December 29, 2024 and 2023, respectively. Debt discount expense recognized on the September 2024 Notes was $4.0 million and zero in the fiscal years ended December 29, 2024 and December 31, 2023, respectively. Of the total debt discount expense, related party expense was $0.5 million and zero in the fiscal years ended December 29, 2024, and December 31, 2023, respectively. There are no financial covenants. The September 2024 Notes are not in default. However, due to the Company’s delayed filing of its Form 10K for the year ended December 29, 2024, the Company will be required to pay incremental default interest of 0.5% beginning April 16, 2025, which will cease upon the Company’s filing of its Form 10K.

The effective interest rate is 27.6% and 47.3% on the September 2024 Notes’ principal amounts of $66.8 million and $13.0 million, respectively.

Exchange Agreement

On July 1, 2024, the Company entered into an Exchange Agreement (the “Exchange Agreement”) with Carlyle and Kline Hill (as defined below) providing for:

(i)

the cancellation of all indebtedness, inclusive of the CS Solis Debt, owed to Carlyle by the Company, termination of all debt instruments by and between the Company and Carlyle (through the transfer of Carlyle’s interest in CS Solis, LLC, to the Company), and the satisfaction of all obligations owed to Carlyle by the Company under the terminated debt instruments;

(ii)

the issuance of a note for the principal amount of $10.0 million to Carlyle as part of the July 2024 Notes;

(iii)

the cancellation of all indebtedness owed to Kline Hill Partners Fund LP, Kline Hill Partners IV SPV LLC, and Kline Hill Partners Opportunity IV SPV, LLC (collectively “Kline Hill”). by the Company, termination of all debt instruments by and between the Company and Kline Hill, including the 2018 Bridge Notes, the revolving loan and the secured credit facility, and the satisfaction of all obligations owed to Kline Hill by the Company under the terminated debt instruments;

(iv)

the issuance of a note for the principal amount of $8.0 million to Kline Hill as part of the July 2024 Notes; and

(v)

the issuance of 1,500,000 shares of common stock, par value $0.0001 per share, of the Company (the “Common Stock”) to Kline Hill (the “Shares”).

2018 Bridge Notes

In 2018, Solaria issued senior subordinated convertible secured notes (“2018 Notes”) totaling approximately $3.4 million in exchange for cash. The 2018 Notes were secured by substantially all of the assets of Solaria, bore interest at the rate of 8% per annum, and the investors were entitled to receive twice the face value of the 2018 Notes at maturity. In connection with an amendment in 2021 to extend the maturity date of the 2018 Notes, Solaria issued warrants to purchase shares of Series E-1 redeemable convertible preferred stock of Solaria. The warrants were exercisable immediately in whole or in part at and expire on December 13, 2031. As part of the Business Combination with Complete Solar, the outstanding warrants issued were assumed by the parent company, Complete Solaria.

In December 2022, the Company entered into an amendment to the 2018 Notes further extending the maturity date from December 13, 2022 to December 13, 2023 in exchange for an increased repayment premium from 110% to 120% of the principal and accrued interest at the time of repayment. The amendment represented a troubled debt restructuring as the Company was experiencing financial difficulty, and the amended terms resulted in a concession to the Company. As the future undiscounted cash payments under the modified terms exceeded the carrying amount of the 2018 Notes on the date of modification, the modification was accounted for prospectively. The incremental repayment premium was being amortized to interest expense using the effective interest rate method.

The 2018 Bridge Notes were settled as part of the Exchange Agreement. In connection with the Exchange Agreement, the balance of the 2018 Bridge Notes was exchanged for the July 2024 Notes. In July 2024, the Company issued the principal amount of $8.0 million of its July 2024 Notes and 1,500,000 shares of the Company’s common stock in exchange for the cancellation of all indebtedness with Kline Hill. At the date of the cancellation, such indebtedness was comprised of the 2018 Notes of $11.7 million, the portion of the Revolving Loan balance assigned to Kline Hill of $3.9 million, and the Secured Credit Facility balance of $13.1 million. The Company concluded that the exchange represented a troubled debt restructuring as the Company was experiencing financial difficulty, and the new terms of the July 2024 Notes resulted in a concession to the Company. As the carrying amount of the debt exceeded the future undiscounted cash payments under the new terms on the date of the exchange, the Company recorded a gain on the troubled debt restructuring of $9.8 million.

Interest expense recognized on the 2018 Bridge Notes was $0.7 million and $1.2 million, for the fiscal year ended December 29, 2024 and December 31, 2023, respectively.

Revolving Loan

In October 2020, Solaria entered into a loan agreement (“SCI Loan Agreement”) with Structural Capital Investments III, LP (“SCI”).

The SCI Loan Agreement was comprised of two facilities, a term loan (the “Term Loan”) and a revolving loan (the “Revolving Loan”) (together “Original Agreement”) for $5.0 million each with a maturity date of October 31, 2023. The Term Loan was repaid prior to the acquisition of Solaria by Complete Solar.

The Revolving Loan had a term of thirty-six months, with the principal due at the end of the term and an annual interest rate of 7.75% or Prime rate plus 4.5%, whichever was higher. The SCI Loan Agreement required the Company to meet certain financial covenants relating to the maintenance of specified restricted cash balance, achieve specified revenue targets and maintain specified contribution margins (“Financial Covenants”) over the term of the Revolving Loan. The Revolving Loan was collateralized by substantially all assets and property of the Company.

Solaria had historically issued warrants to purchase shares of Series E-1 redeemable convertible preferred stock of Solaria (“SCI Series E-1 warrants”). The warrants were fully exercisable in whole or in part at any time during the term of the Original agreement. As part of the Business Combination with Complete Solar, all the outstanding SCI Series E-1 warrants were assumed by the parent company, Complete Solaria.

In October 2023, the Company entered into an Assignment Agreement whereby Structural Capital Investments III, LP assigned the SCI debt to Kline Hill and Rodgers Massey Revocable Living Trust for a total purchase price of $5.0 million. The Company identified this arrangement as a related party transaction, as discussed in Note 23 – Related Party Transactions. A portion of the SCI Revolving Loan was cancelled as part of the Exchange Agreement. In connection with the Exchange Agreement, the principal amount of $3.5 million of the Revolving Loan was exchanged for the July 2024 Notes. The principal portion of the Revolving Loan owing to the Rodgers Massey Revocable Living Trust of $1.5 million (plus accrued interest) remains outstanding as of December 29, 2024. The outstanding amount is due on demand plus accrued interest.

Interest expense recognized for the fiscal years ended December 29, 2024 and December 31, 2023, was $0.5 million and $0.5 million, respectively. Related party interest was $0.2 million in the year ended December 29, 2024. There are no financial covenants.

Secured Credit Facility

In December 2022, the Company entered into a secured credit facility agreement with Kline Hill Partners IV SPV LLC and Kline Hill Partners Opportunity IV SPV LLC (“Secured Credit Facility”). The Secured Credit Facility agreement allowed the Company to borrow up to 70% of the net amount of its eligible vendor purchase orders with a maximum amount of $10.0 million at any point in time. The purchase orders were backed by relevant customer sales orders which served as collateral. The amounts drawn under the Secured Credit Facility were eligible to be reborrowed provided that the aggregate borrowing did not exceed $20.0 million. The repayment terms under the Secured Credit Facility were (i) the borrowed amount multiplied by 1.15x if repaid within 75 days and (ii) the borrowed amount multiplied by 1.175x if repaid after 75 days. The Company could have repaid any borrowed amount without premium or penalty. Under the original terms, the Secured Credit Facility agreement was due to mature in April 2023. The Company set the balance outstanding as part of the Exchange Agreement, whereby the balance of $13.1 million of the Secured Credit Facility was exchanged for the July 2024 Notes.

The Secured Credit Facility outstanding was zero and $12.2 million, including accrued financing cost of $4.5 million as of December 29, 2024 and December 31, 2023, respectively. The Company recognized interest expense of $1.0 million and $3.5 million related to the Secured Credit Facility during the fiscal years ended December 29, 2024 and December 31, 2023, respectively.

Polar Settlement Agreement

In September 2023, in connection with the Mergers, the Company entered into a settlement and release agreement with Polar Multi-Strategy Master Fund (“Polar”) for the settlement of a working capital loan that had been made by Polar to the Sponsor, prior to the closing of the Mergers. The settlement agreement required the Company to pay Polar $0.5 million in ten equal monthly installments and did not accrue interest. The balance outstanding was $0.3 million as of December 31, 2023. The remaining balance owed to Polar was paid in full in the fiscal year ended December 29, 2024.

Debt in CS Solis

As part of the Reorganization described in Note 1(a) Organization - Description of Business, the Company received cash and recorded debt for an investment by Carlyle. The investment was made pursuant to a subscription agreement, under which Carlyle contributed $25.6 million in exchange for 100 Class B Membership Units of CS Solis and the Company contributed the net assets of Complete Solar, Inc. in exchange for 100 Class A Membership Units. The Class B Membership Units were mandatorily redeemable by the Company on the three-year anniversary of the effective date of the CS Solis amended and restated LLC agreement (February 14, 2025). The Class B Membership Units accrued interest that was payable upon redemption at a rate of 10.5% (which was structured as a dividend payable based on 25% of the investment amount measured quarterly), compounded annually, and subject to increases in the event the Company declared any dividends. In connection with the investment by Carlyle, the Company issued to Carlyle a warrant to purchase 5,978,960 shares of the Company’s common stock at a price of $0.01 per share, of which, the purchase of 4,132,513 shares of the Company’s common stock is immediately exercisable. The Company has accounted for the mandatorily redeemable investment from Carlyle in accordance with ASC 480 and recorded the investment as a liability, which was accreted to its redemption value under the effective interest method. The Company recorded the warrants as a discount to the liability.

On July 17 and July 18, 2023, and in connection with obtaining consent for the Mergers, Legacy Complete Solaria, FACT and Carlyle entered into an Amended and Restated Consent to the Business Combination Agreement (“Carlyle Debt Modification Agreement”) and an amended and restated warrant agreement (“Carlyle Warrant Amendment”), which modified the terms of the mandatorily redeemable investment made by Carlyle in Legacy Complete Solaria.

The Carlyle Debt Modification Agreement accelerated the redemption date of the investment to March 31, 2024 subsequent to the modification. The acceleration of the redemption date of the investment resulted in the total redemption amount to be 1.3 times the principal at December 31, 2023. The redemption amount increased to 1.4 times the original investment as of March 31, 2024. Additionally, as part of the amendment, the parties entered into an amended and restated warrant agreement. As part of the Carlyle Warrant Amendment, Complete Solaria issued Carlyle a warrant to purchase up to 2,745,879 shares of Complete Solaria Common Stock at a price per share of $0.01, which is inclusive of the outstanding warrant to purchase 1,995,879 shares at the time of modification. The warrant, which expires on July 18, 2030, provides Carlyle with the right to purchase shares of Complete Solaria Common Stock based on (a) the greater of (i) 1,995,879 shares and (ii) the number of shares equal to 2.795% of Complete Solaria’s issued and outstanding shares of common stock, on a fully-diluted basis; plus (b) on and after the date that is ten (10) days after the date of the agreement, an additional 350,000 shares; plus (c) on and after the date that is thirty (30) days after the date of the agreement, if the original investment amount has not been repaid, an additional 150,000 shares; plus (d) on and after the date that is ninety (90) days after the date of the agreement, if the original investment amount has not been repaid, an additional 250,000 shares, in each case, of Complete Solaria Common Stock at a price of $0.01 per share. The warrants are classified as liabilities under ASC 815 and are recorded within warrant liability on the Company’s consolidated statements of operations and comprehensive loss.

The Company accounted for the modification of the long-term debt due CS Solis as a debt extinguishment in accordance with ASC 480 and ASC 470. As a result of the extinguishment, the Company recorded a loss on extinguishment, of $10.3 million, which is recorded within other income (expense), net in the consolidated statements of operations and comprehensive loss in the fiscal year ended December 31, 2023. The Company had a liability of $33.3 million in short-term debt due CS Solis on the consolidated balance sheet as of December 31, 2023. The Company recorded accretion of the liability as interest expense of $7.2 million for the fiscal year ended December 31, 2023, and made payments of interest expense of $0.6 million during the fiscal year ended December 31, 2023 Prior to the modification, during the fiscal years ended December 31, 2023 the Company recorded amortization of issuance costs as interest expense of $0.7 million.

The Company determined that the Carlyle was a related party beginning in 2024. In July 2024, the Company issued $10.0 million of senior unsecured convertible notes in exchange for the cancellation of all indebtedness with CS Solis of $37.2 million. The Company concluded that the exchange represented a troubled debt restructuring as the Company was experiencing financial difficulty, and the new terms under the convertible notes resulted in a concession to the Company. As the carrying amount of the debt exceeded the future undiscounted cash payments under the new terms on the date of the exchange, the Company recorded a gain on the troubled debt restructuring of $12.5 million. The convertible notes have the same terms and conditions as the other convertible notes issued in July 2024 described above.

For the fiscal years ended December 29, 2024 and December 31, 2023, the Company recorded accretion of the liability as interest expense of $3.9 million and $2.7 million, respectively, and made no payments of interest expense.

For the fiscal years ended December 29, 2024 and December 31, 2023, the Company recorded amortization of issuance costs as interest expense of zero and $0.7 million, respectively.

2022 Convertible Notes

In connection with the Original Business Combination Agreement, the Company raised a series of convertible notes (“2022 Convertible Notes”) during the fiscal year ended December 31, 2022 with an aggregate purchase price of $12.0 million, and during the fiscal year ended December 31, 2023 for an additional total purchase price of $21.3 million. Of the $33.3 million 2022 Convertible Notes issued, $12.1 million was issued to five related parties. Additionally, as part of the acquisition of Solaria, the Company assumed a note from an existing investor for its fair value of $6.7 million. The note contained the same terms as the other 2022 Convertible Notes. The Company did not incur significant issuance costs associated with the 2022 Convertible Notes. The 2022 Convertible Notes accrued interest at a rate of 5% per annum. Immediately prior to the closing of the Mergers, the 2022 Convertible Notes were converted into the number of shares of common stock of Complete Solaria equal to (x) the principal amount together with all accrued interest of the 2022 Convertible Notes divided by 0.75, divided by (y) the price of a share of common stock of Complete Solaria used to determine the conversion ratio in the Amended and Restated Business Combination Agreement. This resulted in the issuance of 5,316,460 shares of Complete Solaria common stock to the noteholders and no debt remains outstanding associated with the 2022 Convertible Notes as of December 31, 2023.

The Company recognized interest expense of $0.7 million related to the 2022 Convertible Notes during the fiscal year ended December 31, 2023. Of this interest expense, $0.4 million was with related parties.

Reverse Recapitalization - Schedule of Common Stock Outstanding (Details)	12 Months Ended
	Dec. 29, 2024 shares
Schedule of Common Stock Outstanding [Line Items]
Less: redemption of FACT Class A Ordinary Shares	(31,041,243)
Total shares from the Mergers and PIPE Financing	19,796,221
Legacy Complete Solaria shares	20,034,257
2022 Convertible Note Shares	5,460,075
Shares of Complete Solaria Common stock immediately after Mergers	45,290,553
Sponsor [Member]
Schedule of Common Stock Outstanding [Line Items]
Bonus shares issued	193,976
PIPE [Member]
Schedule of Common Stock Outstanding [Line Items]
Bonus shares issued	120,000
Shares issued	1,690,000
FPA [Member]
Schedule of Common Stock Outstanding [Line Items]
Bonus shares issued	150,000
Shares issued	5,558,488
Class A Ordinary Shares [Member]
Schedule of Common Stock Outstanding [Line Items]
Ordinary Shares, outstanding prior to Mergers	34,500,000
Class B Ordinary Shares [Member]
Schedule of Common Stock Outstanding [Line Items]
Ordinary Shares, outstanding prior to Mergers	8,625,000

Consolidated Statements of Operations and Comprehensive Loss - USD ($)
$ in Thousands

12 Months Ended

Dec. 29, 2024

Dec. 31, 2023

Income Statement [Abstract]

Revenues

$ 108,742

$ 87,616

69,240

69,828

Gross profit

39,502

17,788

Operating expenses:

24,590

31,127

6,827

6,920

Loss from continuing operations

76,594

32,099

Total operating expenses

108,011

70,146

(68,509)

(52,358)

^[1]

(16,223)

(14,033)

^[2]

7,932

(29,862)

Loss from continuing operations before income taxes

^[3]

22,337

Total Other expense

14,065

(43,859)

(54,444)

(96,217)

Income tax benefit (provision)

Net loss from continuing operations

(54,444)

(96,197)

Loss from discontinued operations, net of taxes

(2,007)

(25,853)

Impairment loss from discontinued operations

(147,505)

Net loss from discontinued operations, net of taxes

(2,007)

(173,358)

Net loss

(56,451)

(269,555)

Other Comprehensive income:

Foreign currency translation adjustment

116

Comprehensive loss (net of tax)

$ (56,451)

$ (269,439)

Net loss from continuing operations per share attributable to common stockholders, basic (in Dollars per share)

$ (0.82)

$ (3.89)

Net loss from discontinued operations per share attributable to common stockholders, basic (in Dollars per share)

(0.03)

(1.05)

Net loss per share attributable to common stockholders, basic (in Dollars per share)

$ (0.85)

$ (4.94)

Weighted-average shares used to compute net loss per share attributable to common stockholders, basic (in Shares)

66,655,837

24,723,370

Net loss from continuing operations per share attributable to common stockholders, diluted (in Dollars per share)

$ (1.19)

$ (3.89)

Net loss from discontinued operations per share attributable to common stockholders, diluted (in Dollars per share)

(0.03)

(1.05)

Net loss per share attributable to common stockholders, diluted (in Dollars per share)

$ (1.22)

$ (4.94)

Weighted-average shares used to compute net loss per share attributable to common stockholders’, basic and diluted (in Shares)

75,793,548

24,723,370

[1]	Includes interest expense to related parties of $7.6 million and $0.4 million during the fiscal years ended December 29, 2024 and December 31, 2023, respectively. Refer to Note 15 – Borrowings and Derivative Liabilities for details.
[2]	Other income (expense), net in the fiscal year ended December 29, 2024 includes the following related party transactions; (i) $0.7 million of expense in connection with the conversion of SAFE Agreements into shares of common stock and the change in the fair value of SAFE Agreements (defined in the notes to the consolidated financial statements), (ii) $3.0 million of expense in connection with the loss on issuance of a derivative liability and $0.3 million of income due to the change in the value of derivative liabilities, and (iii) income of $0.1 million of expense in connection with the change in the fair value of forward purchase agreements. Other income (expense), net in the fiscal year ended December 31, 2023, includes the following related party transaction; $0.7 million of expense for bonus shares issued in connection with the Mergers; $0.4 million of forward purchase agreements entered into and $9.1 million of change in the fair value of the forward purchase agreements; and $30.7 million of expense for shares issued in connection with the forward purchase agreements. Other income (expense), net in the fiscal year ended December 31, 2023, includes the following related party transaction; $0.7 million of expense for bonus shares issued in connection with the Mergers; $0.4 million of forward purchase agreements entered into and $9.1 million of change in the fair value of the forward purchase agreements; and $30.7 million of expense for shares issued in connection with the forward purchase agreements.
[3]	Gain includes $12.5 million with a related party in the fiscal year ended December 29, 2024. Refer to Note 15 – Borrowings and Derivative Liabilities for details.

Prepaid Expenses and Other Current Assets (Tables)

12 Months Ended

Dec. 29, 2024

Prepaid Expenses and Other Current Assets [Abstract]

Schedule of Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets consist of the following (in thousands):

	As of
	December 29,		December 31,
	2024		2023
Inventory deposits	$	3,407	$	616
Deferred costs		3,759		—
Prepaid sales commissions		—		4,185
Other		1,040		1,016
Total prepaid expenses and other current assets	$	8,206	$	5,817

Stock-Based Compensation

12 Months Ended

Dec. 29, 2024

Stock-Based Compensation [Abstract]

Stock-Based Compensation

(17) Stock-Based Compensation

In July 2023, the Company’s board of directors adopted and stockholders approved the 2023 Incentive Equity Plan (the “2023 Plan”). The 2023 Plan became effective immediately upon the closing of the Amended and Restated Business Combination Agreement. Initially, a maximum number of 8,763,322 shares of Complete Solaria Common Stock may be issued under the 2023 Plan. In addition, the number of shares of Complete Solaria Common Stock reserved for issuance under the 2023 Plan will automatically increase on January 1 of each year, starting on January 1, 2024 and ending on January 1, 2033, in an amount equal to the lesser of (1) 4% of the total number of shares of Complete Solaria’s Common Stock outstanding on December 31 of the preceding year, or (2) a lesser number of shares of Complete Solaria Common Stock determined by Complete Solaria’s Board prior to the date of the increase. The maximum number of shares of Complete Solaria Common Stock that may be issued on the exercise of incentive stock options (“ISOs”) under the 2023 Plan is three times the number of shares available for issuance upon the 2023 Plan becoming effective (or 26,289,966 shares).

Historically, awards were granted under the Amended and Restated Complete Solaria Omnibus Incentive Plan (“2022 Plan”), the Complete Solar 2011 Stock Plan (“2011 Plan”), the Solaria Corporation 2016 Stock Plan (“2016 Plan”) and the Solaria Corporation 2006 Stock Plan (“2006 Plan”) (together with the Complete Solaria, Inc. 2023 Incentive Equity Plan (“2023 Plan”), “the Plans”).

Under the Plans, the Company has granted service-based stock options and restricted stock units (“RSUs”). Compensation expense for stock options under the Company’s cliff vesting schedule is generally recognized equally over the vesting period of five years. RSUs granted during the fiscal year ended December 29, 2024 are also generally recognized under the cliff vesting schedule that is recognized equally over the vesting period of five years.

The information below summarizes the stock option activity under the Plans.

	Number of Shares			Weighted Average Exercise Price per Share		Weighted Average Contractual Term (Years)		Aggregate Intrinsic Value (in thousands)
Outstanding—December 31, 2023		11,716,646		$	3.48		8.53	$	2,756
Options granted		6,121,251			0.93
Options exercised		(398,883	)		0.77				39
Options canceled		(7,441,781	)		0.17
Outstanding—December 29, 2024		9,997,233			2.77		5.29		6,356
Vested and expected to vest— December 29, 2024		9,997,233			2.77		5.29		6,356
Vested and exercisable— December 29, 2024		4,264,705			3.54		3.75		1,857

The information below summarizes the RSU activity.

	Number of RSUs			Weighted Average Grant Date Fair Value
Unvested at December 31, 2023		58,097		$	2.07
Granted		2,593,097			1.78
Vested and released		(669,059	)		1.73
Cancelled or forfeited		—			—
Unvested at December 29, 2024		1,982,135			1.79

The aggregate fair value of the Company’s stock options vested during 2024 and 2023 was $1.9 million and $3.8 million, respectively.

Determination of Fair Value

The Company estimated the grant-date fair value of stock options using the Black-Scholes-Merton option-pricing model. The determination of the fair value of each stock award using this option-pricing model is affected by the Company’s assumptions regarding a number of complex and subjective variables. These variables include, but are not limited to, the expected stock price volatility over the term of the awards. Stock-based compensation is measured at the grant date based on the fair value of the award and is recognized as expense on a straight-line basis over the requisite service period, which is generally the vesting period of the respective award.

The following assumptions were used to calculate the fair value of stock-based compensation:

	Fiscal Year Ended
	December 29,			December 31,
	2024			2023
Expected term (in years)		5.00 – 6.32			5.50 – 6.32
Expected volatility		58.45% - 62.39	%		77.0	%
Risk-free interest rate		3.81% – 4.71	%		1.7% – 4.7	%
Expected dividends		0.0	%		0.0	%

Expected term — The Company uses the simplified method to calculate the expected term of stock option grants to employees as the Company does not have sufficient comparable historical exercise data to provide a reasonable basis upon which to estimate the expected term of stock options granted to employees. The expected term equals the arithmetic average of the vesting term and the original contractual term of the option (generally 10 years).

Expected volatility — Due to the Company’s limited operating history and a lack of company specific historical and implied volatility data, the Company has based its estimate of expected volatility on the historical volatility of a group of peer companies that are publicly traded. The historical volatility data was computed using the daily closing prices for the selected companies’ shares during the equivalent period of the calculated expected term of the stock-based awards.

Risk-free interest rate — The risk-free rate assumption is based on U.S. Treasury instruments with maturities similar to the expected term of the Company’s stock options.

Expected dividends — The Company has not issued any dividends in its history and does not expect to issue dividends over the life of the options and therefore has estimated the dividend yield to be zero.

Fair value of common stock — Prior to the Mergers, fair value of the shares of common stock underlying the stock-based awards has historically been determined by the Board of Directors, with input from management. Because there has been no public market for the Company’s common stock prior to the Mergers, the Board of Directors has determined the fair value of the common stock on the grant-date of the stock-based award by considering a number of objective and subjective factors. Such factors include a valuation of the Company’s common stock performed by an unrelated third-party specialist, valuations of comparable companies, sales of the Company’s redeemable convertible preferred stock to unrelated third-parties, operating and financial performance, the lack of liquidity of the Company’s capital stock, as well as general and industry-specific economic outlooks. For financial reporting purposes, the Company considers the amount of time between the valuation date and the grant date to determine whether to use the latest common stock valuation or a straight-line interpolation between the two valuation dates. The determination included an evaluation of whether the subsequent valuation indicated that any significant change in valuation had occurred between the previous valuation and the grant date.

Subsequent to the Mergers, the fair value of the shares of common stock underlying the stock-based awards is based on the price of the Company’s common stock in the open market on the date of the grant.

Stock-based compensation expense

The following table summarizes stock-based compensation expense and its allocation within the accompanying consolidated statements of operations and comprehensive loss (in thousands):

	Fiscal Year Ended
	December 29,		December 31,
	2024		2023
Cost of revenues	$	157	$	84
Sales and marketing		598		487
General and administrative		2,312		2,252
Loss from discontinued operations, net of tax		—		2,376
Total stock-based compensation expense	$	3,067	$	5,199

As of December 29, 2024, there was a total of $15.1 million and $4.2 million unrecognized stock-based compensation costs related to service-based options and RSUs, respectively. Such compensation cost is expected to be recognized over a weighted-average period of approximately 2.2 years and 4.7 years, respectively.

In 2024 and 2023, the Company’s board of directors approved the modification to accelerate the vesting of 788,192 and 52,167 options, respectively, for employees that were terminated. Additionally, the board of directors approved an extension of the post termination exercise period for 4,343,172 and 280,412 vested options of terminated employees in the years ended December 29, 2024, and December 31, 2023, respectively. In connection with the modifications, the Company recorded incremental stock-based compensation expense of $0.7 million and $0.1 million in the fiscal years ended December 29, 2024, and December 31, 2023, respectively.

Summary of Significant Accounting Policies - Schedule of Contract Assets and Contract Liabilities Balances (Details) - USD ($) $ in Thousands	Dec. 29, 2024	Dec. 31, 2023
Schedule of Contract Assets and Contract Liabilities Balances [Abstract]
Contract assets	$ 26,066
Contract liabilities current and noncurrent	$ 10,921	$ 3,478

Organization - Schedule of Consolidated Statements of Operations and Comprehensive Loss Related to Discontinued Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2024	Dec. 31, 2023
Schedule of Consolidated Statements of Operations and Comprehensive Loss Related to Discontinued Operations [Line Items]
Revenues		$ 29,048
Cost of revenues		30,609
Gross loss		(1,561)
Operating expenses:
Sales and marketing		6,855
General and administrative	2,007	17,472
Total operating expenses	2,007	24,327
Loss from discontinued operations	(2,007)	(25,888)
Other income, net		31
Loss from discontinued operations before income taxes	(2,007)	(25,857)
Income tax benefit		4
Loss from discontinued operations, net of tax	(2,007)	(25,853)
Impairment loss from discontinued operations		(147,505)
Net loss from discontinued operations	$ (2,007)	$ (173,358)

Stock-Based Compensation - Schedule of Fair Value of Stock-Based Compensation (Details)	12 Months Ended
	Dec. 29, 2024	Dec. 31, 2023
Schedule of Fair Value of Stock-Based Compensation [Line Items]
Expected volatility		77.00%
Expected dividends	0.00%	0.00%
Minimum [Member]
Schedule of Fair Value of Stock-Based Compensation [Line Items]
Expected term (in years)	5 years	5 years 6 months
Expected volatility	58.45%
Risk-free interest rate	3.81%	1.70%
Maximum [Member]
Schedule of Fair Value of Stock-Based Compensation [Line Items]
Expected term (in years)	6 years 3 months 25 days	6 years 3 months 25 days
Expected volatility	62.39%
Risk-free interest rate	4.71%	4.70%

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Reverse Recapitalization

12 Months Ended

Dec. 29, 2024

Reverse Recapitalization [Abstract]

Reverse Recapitalization

(3) Reverse Recapitalization

As discussed in Note 1 – Organization, on July 18, 2023, the Company consummated the Mergers pursuant to the Amended and Restated Business Combination Agreement. The Mergers was accounted for as a reverse recapitalization, rather than a business combination, for financial accounting and reporting purposes. Accordingly, Complete Solaria was deemed the accounting acquirer (and legal acquiree) and FACT was treated as the accounting acquiree (and legal acquirer). Complete Solaria was determined to be the accounting acquirer based on evaluation of the following facts and circumstances:

●

Complete Solaria’s pre-combination stockholders have the majority of the voting power in the post- merged company;

●

Legacy Complete Solaria’s stockholders have the ability to appoint a majority of the Complete Solaria Board of Directors;

●

Legacy Complete Solaria’s management team is considered the management team of the post-merged company;

●

Legacy Complete Solaria’s prior operations are comprised of the ongoing operations of the post-merged company;

●

Complete Solaria is the larger entity based on historical revenues and business operations; and

●

the post-merged company has assumed Complete Solaria’s operating name.

Under this method of accounting, the reverse recapitalization was treated as the equivalent of Complete Solaria issuing stock for the net assets of FACT, accompanied by a recapitalization. The net assets of FACT were stated at historical cost, with no goodwill or other intangible assets recorded. The consolidated assets, liabilities, and results of operations prior to the Mergers are those of Legacy Complete Solaria. All periods prior to the Mergers have been retrospectively adjusted in accordance with the Amended and Restated Business Combination Agreement for the equivalent number of preferred or common shares outstanding immediately after the Mergers to effect the reverse recapitalization.

Upon the closing of the Mergers and the PIPE Financing in July 2023, the Company received net cash proceeds of $19.7 million. The following table reconciles the elements of the Mergers to the audited consolidated statements of cash flows and the audited consolidated statements of stockholders’ deficit for the year-ended December 31, 2023 (in thousands):

	Recapitalization
Cash proceeds from FACT, net of redemptions	$	36,539
Cash proceeds from PIPE Financing		12,800
Less: cash payment of FACT transaction costs and underwriting fees		(10,680	)
Less: cash payment to FPA investors for rebates and recycled shares		(17,831	)
Less: cash payment for Promissory Note		(1,170	)
Net cash proceeds upon the closing of the Mergers and PIPE financing		19,658
Less: non-cash net liabilities assumed from FACT		(10,135	)
Net contributions from the Mergers and PIPE financing upon closing	$	9,523

Immediately upon closing of the Mergers, the Company had 45,290,553 shares issued and outstanding of Class A Common Stock. The following table presents the number of shares of Complete Solaria Common Stock outstanding immediately following the consummation of the Mergers:

	Recapitalization
FACT Class A Ordinary Shares, outstanding prior to Mergers		34,500,000
FACT Class B Ordinary Shares, outstanding prior to Mergers		8,625,000
Bonus shares issued to sponsor		193,976
Bonus shares issued to PIPE investors		120,000
Bonus shares issued to FPA investors		150,000
Shares issued from PIPE financing		1,690,000
Shares issued from FPA agreements, net of recycled shares		5,558,488
Less: redemption of FACT Class A Ordinary Shares		(31,041,243	)
Total shares from the Mergers and PIPE Financing		19,796,221
Legacy Complete Solaria shares		20,034,257
2022 Convertible Note Shares		5,460,075
Shares of Complete Solaria Common stock immediately after Mergers		45,290,553

In connection with the Mergers, the Company incurred direct and incremental costs of approximately $16.4 million related to legal, accounting, and other professional fees, which were offset against the Company’s additional paid-in capital. Of the $16.4 million, $5.8 million was incurred by Legacy Complete Solaria and $10.6 million was incurred by FACT. As of December 31, 2023, the Company made cash payments totaling $5.4 million to settle transaction costs. As a result of the Closing, the outstanding 2022 Convertible Notes were converted into shares of Complete Solaria Common Stock.

Business Combination - Schedule of Provisional Fair Value of Identifiable Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Dec. 29, 2024	Dec. 31, 2023
Net assets acquired:
Cash	$ 1,000
Accounts receivable	11,999
Contract assets	4,615
Inventories	27,706
Prepaid expenses and other current assets	2,219
Property and equipment	5,867
Operating lease right-of-use assets	2,506
Other noncurrent assets	541
Intangibles	18,100
Deferred revenue	(7,361)
Accounts payable	(5,270)
Accrued expenses and other current liabilities	(13,955)
Operating lease liabilities	(2,963)
Other long-term liabilities	(8,980)
Fair value of net assets acquired	36,024
Consideration transferred	54,500
Goodwill recognized	$ 18,476

SAFE Agreements (Details) - USD ($) $ in Millions	May 13, 2024	Apr. 21, 2024	Feb. 15, 2024	Jan. 31, 2024	Dec. 29, 2024
SAFE Agreements [Line Items]
Estimated fair value amount					$ 0.4
First SAFE [Member]
SAFE Agreements [Line Items]
Description of simple agreement for future equity terms and conditions				On January 31, 2024, the Company entered into a Simple Agreement for Future Equity (“SAFE”) (the “First SAFE”) with the Rodgers Massey Freedom and Free Markets Charitable Trust (the “Purchaser”), a related party, affiliated with Thurman J. Rodgers, the Company’s Chief Executive Officer and a director, in connection with the Purchaser investing $1.5 million in the Company. The First SAFE did not accrue interest. The First SAFE was initially convertible into shares of the Company’s common stock, par value $0.0001 per share, upon the closing of a bona fide transaction or series of transactions with the principal purpose of raising capital, pursuant to which the Company would have issued and sold shares of its common stock at a fixed valuation (an “Equity Financing”), at a per share conversion price which was equal to the lower of (i) (a) $53.54 million divided by (b) the Company’s capitalization immediately prior to such Equity Financing (such conversion price, the “SAFE Price”), and (ii) 80% of the price per share of its common stock sold in the Equity Financing. If the Company consummated a change of control prior to the termination of the First SAFE, the Purchaser would have been automatically entitled to receive a portion of the proceeds of such liquidity event equal to the greater of (i) $1.5 million and (ii) the amount payable on the number of shares of common stock equal to (a) $1.5 million divided by (b)(1) $53.54 million divided by (2) the Company’s capitalization immediately prior to such liquidity event (the “Liquidity Price”), subject to certain adjustments as set forth in the First SAFE. The First SAFE was convertible into a maximum of 1,431,297 shares of the Company’s common stock, assuming a per share conversion price of $1.05, which is the product of (i) $1.31, the closing price per share of the Company’s common stock on January 31, 2024, multiplied by (ii) 80%.
Description of simple agreement for future equity amendment		On April 21, 2024, the Company entered into an amendment (“First SAFE Amendment”) that converted the First SAFE investment of $1.5 million into 4,166,667 shares of the Company’s common stock based on a conversion price of $0.36 per share, defined in the First SAFE Amendment as the product of (i) $0.45, the closing price of the Company’s common stock on April 19, 2024, multiplied by (ii) 80%. Upon conversion, the Company recorded a debit to SAFE Agreement of $1.5 million, a credit to Additional paid-in-capital of $1.9 million and recognized expense of $0.4 million within Other income (expense), net in its consolidated statement of operations for the fiscal year ended December 29, 2024.
Second SAFE [Member]
SAFE Agreements [Line Items]
Description of simple agreement for future equity terms and conditions			On February 15, 2024, the Company entered into a second SAFE (the “Second SAFE”) with the Purchaser, in connection with the Purchaser investing $3.5 million in the Company. The Second SAFE did not accrue interest. The Second SAFE was initially convertible into shares of the Company’s common stock upon the initial closing of an Equity Financing at a per share conversion price which was equal to the lower of (i) the Second SAFE Price, and (ii) 80% of the price per share of the Company’s common stock sold in the Equity Financing. If the Company consummated a change of control prior to the termination of the Second SAFE, the Purchaser would have been automatically entitled to receive an amount equal to the greater of (i) $3.5 million and (ii) the amount payable on the number of shares of the Company’s common stock equal to $3.5 million divided by the Liquidity Price, subject to certain adjustments as set forth in the Second SAFE. The Second SAFE was convertible into a maximum of 3,707,627 shares of the Company’s common stock, assuming a per share conversion price of $0.94, which is the product of (i) $1.18, the closing per share price of its common stock on February 15, 2024, (ii) 80%.
Description of simple agreement for future equity amendment		On April 21, 2024, the Company entered into an amendment (“Second SAFE Amendment”) that converted the Second SAFE investment of $3.5 million into 9,722,222 shares of the Company’s common stock based on a conversion price of $0.36 per share, defined in the Second SAFE Amendment as the product of (i) $0.45, the closing price of the Company’s common stock on April 19, 2024, multiplied by (ii) 80%. Upon conversion, the Company recorded a debit to SAFE Agreement of $3.5 million, a credit to Additional paid-in-capital of $4.4 million and recognized expense of $0.9 million within Other income (expense), net in its consolidated statement of operations for the fiscal year ended December 29, 2024.
Third SAFE [Member]
SAFE Agreements [Line Items]
Description of simple agreement for future equity terms and conditions	On May 13, 2024, the Company entered into a third SAFE (the “Third SAFE”) with the Purchaser, in connection with the Purchaser investing $1.0 million in the Company. The Third SAFE is convertible into shares of the Company’s common stock upon the initial closing of a bona fide transaction or series of transactions with the principal purpose of raising capital, pursuant to which the Company issues and sells shares of its common stock in an Equity Financing, at a per share conversion price which is equal to 50% of the price per share of the Company’s common stock sold in the Equity Financing. If the Company consummates a change of control prior to the termination of the Third SAFE, the Purchaser will be automatically entitled to receive a portion of the proceeds of such liquidity event equal to $1.0 million, subject to certain adjustments as set forth in the Third SAFE. The Third SAFE is convertible into a maximum of 2,750,000 shares of the Company’s common stock, assuming a per share conversion price of $0.275, which is the product of (i) $0.55, the closing price of the Company’s common stock on May 13, 2024, multiplied by (ii) 50%. Given that the SAFE could be settled in cash or a variable number of shares, the Company has accounted for the instrument as a liability at its fair value.

Borrowings and Derivative Liabilities - Schedule of Borrowings and Derivative Liabilities (Details) - USD ($) $ in Thousands	Dec. 29, 2024	Dec. 31, 2023
Schedule of Borrowings and Derivative Liabilities [Line Items]
Total Notes payable	$ 147,331	$ 28,657
Total notes payable and convertible notes, net		61,937
Less current portion	(1,500)	(61,937)
Notes payable and convertible notes, net of current portion	145,831
July 2024 Notes [Member]
Schedule of Borrowings and Derivative Liabilities [Line Items]
Total Notes payable	17,965
July 2024 Notes derivative liability [Member]
Schedule of Borrowings and Derivative Liabilities [Line Items]
Total Notes payable	13,563
July 2024 Notes – related parties [Member]
Schedule of Borrowings and Derivative Liabilities [Line Items]
Total Notes payable	24,632
July 2024 derivative liability – related parties [Member]
Schedule of Borrowings and Derivative Liabilities [Line Items]
Total Notes payable	21,127
September 2024 Notes [Member]
Schedule of Borrowings and Derivative Liabilities [Line Items]
Total Notes payable	5,636
September 2024 Notes derivative liability [Member]
Schedule of Borrowings and Derivative Liabilities [Line Items]
Total Notes payable	55,474
September 2024 Notes – related party [Member]
Schedule of Borrowings and Derivative Liabilities [Line Items]
Total Notes payable	476
September 2024 Notes – derivative liability – related party [Member]
Schedule of Borrowings and Derivative Liabilities [Line Items]
Total Notes payable	6,958
2018 Bridge Notes [Member]
Schedule of Borrowings and Derivative Liabilities [Line Items]
Total Notes payable		11,031
Revolver Loan [Member]
Schedule of Borrowings and Derivative Liabilities [Line Items]
Total Notes payable	1,500	5,168
Secured Credit Facility [Member]
Schedule of Borrowings and Derivative Liabilities [Line Items]
Total Notes payable		12,158
Polar Settlement Agreement [Member]
Schedule of Borrowings and Derivative Liabilities [Line Items]
Total Notes payable		300
Debt in CS Solis [Member]
Schedule of Borrowings and Derivative Liabilities [Line Items]
Debt in CS Solis		$ 33,280

Income Taxes

12 Months Ended

Dec. 29, 2024

Income Taxes [Abstract]

Income Taxes

(20) Income Taxes

The Company’s loss from continuing operations before provision for income taxes for the fiscal years ended December 29, 2024 and December 31, 2023, was as follows (in thousands):

	Fiscal Year Ended
	December 29, 2024			December 31, 2023
Domestic	$	(54,444	)	$	(94,222	)
Foreign		—			(1,995	)
Total	$	(54,444	)	$	(96,217	)

The following is a reconciliation of the Company’s income tax applied at the federal statutory income tax rate compared to the income tax provision in its consolidated statements of operations for continuing operations. Certain prior year amounts have been reclassified to conform to the current year presentation (in thousands):

	Fiscal Year Ended
	December 29, 2024			December 31, 2023
Statutory federal income tax	$	(11,433	)	$	(20,206	)
State income taxes, net of federal tax benefits		(2,444	)		7,833
Stock compensation		1,102			637
Fair value adjustments		(980	)		(5,540	)
Nondeductible items		1,332			141
Debt extinguishment		(6,571	)		2,171
Foreign earnings taxed at different rates		—			419
Forward purchase agreements		—			9,780
Effect of changes in tax rates		706			—
Prior year adjustments		2,058			—
Valuation allowance		16,171			3,145
Other		59			1,600
Tax Provision	$	—		$	(20	)

Significant components of our deferred tax assets and liabilities are as follows. Certain prior year amounts have been reclassified to conform to the current year presentation (in thousands):

	As of
	December 29,			December 31,
	2024			2023
Deferred income tax assets
Net operating loss	$	34,749		$	17,957
Debt derivatives		24,591			—
Bad debt reserve		431			2,799
Stock based compensation		452			3,060
Lease liability		1,512			10
Other reserves		3,381			3,764
Interest expense carryover		7,005			5,503
Intangibles		1,279			32
Capitalized research and development		824			808
Other		3,336			5,827
Total		77,560			39,760
Valuation allowance		(55,714	)		(38,407	)
Net deferred tax assets		21,846			1,353
Deferred income tax liabilities
Convertible loan discount		(19,175	)		(759	)
Other		(2,671	)		(594	)
Total deferred tax liabilities		(21,846	)		(1,353	)
Net deferred tax assets	$	—		$	—

Management regularly assess its ability to realize deferred tax assets recorded based upon the weight of available evidence, including such factors as recent earnings history and expected future taxable income on a jurisdiction by jurisdiction basis. In the event that the Company changes its determination as to the amount or realizable deferred tax assets, the Company will adjust its valuation allowance with a corresponding impact to the provision for income taxes in the period in which such determination is made. The Company’s management believes that, based upon a number of factors, it is more likely than not that all or some portion of the deferred tax assets will not be realized. Accordingly, for the fiscal years ended December 29, 2024, and December 31, 2023, the Company provided a valuation allowance against its U.S. net deferred tax assets of $55.7 million and $38.4 million, respectively. The valuation allowance increased by $17.3 million in the year ended December 29, 2024.

As of December 29, 2024, the Company had net operating loss carryforwards for federal and state income tax purposes of approximately $127.3 million and $106.7 million, respectively. Excluding $111.5 million of federal net operating losses which carryforward indefinitely, the net operating loss carryforwards will expire between 2030 and 2044.

The Internal Revenue Code (“IRC”) of 1986, as amended, imposes restrictions on the utilization of net operating losses in the event of an “ownership change” of a corporation. Accordingly, a company’s ability to use net operating losses may be limited as prescribed under IRC Section 382. Events which may cause limitations in the amount of the net operating losses that the Company may use in any one year include, but are not limited to, a cumulative ownership change of more than 50% over a three-year period. Utilization of the federal and state net operating losses may be subject to substantial annual limitation due to the ownership change limitations provided by IRC Section 382 and similar provisions. Such limitations may result in the expiration of these carryforwards before their utilization. The Company’s acquired net operating loss carryforwards have been reduced based on the estimated amount which will be lost due to these limitations. If the Company has experienced subsequent ownership changes, our losses may be further limited, which may result in the expiration of net operating losses before utilization. To date, Company has not yet completed a Section 382 ownership change analysis. During the current year, the Company has undergone restructuring and strategic transformation, including the completion of the SunPower businesses. As a result of this change in facts and lack of certainty regarding the acquired losses of the legacy Solaria business, the Company has written off the remaining acquired net operating losses as the Company does not intend to pursue the potential tax benefits as it believes those benefits will be lost due to continuation of business enterprise rules. As a result, the corresponding uncertain tax position is also reversed as the Company does not intend to pursue utilization of those attributes.

The Company files income tax returns in the U.S for federal and various state jurisdictions as well as foreign jurisdictions each of which have varying statutes of limitations. The Company is in the process of filing returns for prior years, and the penalties related to the delinquent filings are not material. Due to the history of losses, the Company’s tax years remain open for examination by all tax authorities since inception. The Company is not currently under examination in any tax jurisdictions.

The Company has unrecognized tax benefit of zero and $53.1 million at December 29, 2024 and December 31, 2023, respectively. The reversal of the uncertain tax benefits would not affect the Company’s effective tax rate to the extent that it continues to maintain a full valuation allowance against its deferred tax assets. As outlined above, the reduction in the uncertain tax positions during the current period is a result of the Company’s decision to forgo the right to certain acquired attributes for which the Company does not intend to claim any tax benefits.

The Company applies the provisions set forth in FASB ASC Topic 740, Income Taxes, to account for the uncertainty in income taxes. In the preparation of income tax returns in federal and state jurisdictions, the Company asserts certain tax positions based on its understanding and interpretation of income tax laws.

The following is a tabular reconciliation of the total amounts of unrecognized tax benefits (in thousands):

	Fiscal Year Ended
	December 29, 2024			December 31, 2023
Unrecognized tax benefits as of beginning of year	$	53,153		$	1,335
Increases related to prior year tax positions		—			5
Increases related to current year tax positions		—			51,813
Decreases related to prior year tax positions		(53,153	)		—
Unrecognized tax benefits as of end of year	$	—		$	53,153

The Company recognizes interest and penalties related to unrecognized tax benefits within the income tax expense line in the statements of operations and comprehensive loss. Accrued interest and penalties are included as part of income tax payable in the consolidated balance sheets. No accrued interest or penalties have been recorded for the fiscal years ended December 29, 2024 and December 31, 2023.

The Company has not provided U.S. income or foreign withholding taxes on the undistributed earnings of its foreign subsidiary as of December 29, 2024 and December 31, 2023, because it intends to permanently reinvest such earnings outside of the U.S. If these foreign earnings were to be repatriated in the future, the related U.S. tax liability will be immaterial, due to the participation exemption put in place under the 2017 Tax Cuts and Jobs Act.

The entire disclosure for income tax.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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Employee Stock Purchase Plan [Abstract]

Employee Stock Purchase Plan

12 Months Ended

Dec. 29, 2024

Employee Stock Purchase Plan

(18) Employee Stock Purchase Plan

The Company adopted the Employee Stock Purchase Plan (the “ESPP Plan”) in connection with the consummation of the Mergers in July 2023. All qualified employees may voluntarily enroll to purchase the Company’s common stock through payroll deductions at a price equal to 85% of the lower of the fair market values of the stock of the offering periods or the applicable purchase date. As of December 29, 2024, 2,628,996 shares were reserved for future issuance under the ESPP Plan.

Commitments and Contingencies - Schedule of Warranty Provision (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2024	Dec. 31, 2023
Schedule of Warranty Provision [Abstract]
Warranty provision, beginning of period	$ 4,849	$ 3,981
Warranty liability from Business Combination	582
Accruals for new warranties issued	695	2,968
Settlements	(158)	(2,100)
Warranty provision, end of period	5,968	4,849
Warranty provision, current	2,531	1,433
Warranty provision, noncurrent	$ 3,437	$ 3,416

Fair Value Measurements (Details)	12 Months Ended
Fair Value Measurements (Details)	Dec. 29, 2024 $ / shares
SAFE Agreement [Member]
Fair Value Measurements [Line Items]
Discount rate of conversion	50.00%
Conversion probability of percentage	50.00%
Carlyle Warrants [Member]
Fair Value Measurements [Line Items]
Price per share (in Dollars per share)	$ 0.01

Employee Stock Purchase Plan (Details) - ESPP Plan [Member]	12 Months Ended
	Dec. 29, 2024 shares
Employee Stock Purchase Plan [Line Items]
Percentage of fair market values of stock	85.00%
Shares reserved for future issuance	2,628,996

Forward Purchase Agreements

12 Months Ended

Dec. 29, 2024

Forward Purchase Agreements [Abstract]

Forward Purchase Agreements

(6) Forward Purchase Agreements

In July 2023, FACT and Legacy Complete Solaria, Inc. entered into FPAs with each of (i) Meteora; (ii) Polar, and (iii) Sandia (each individually, a “Seller”, and together, the “FPA Sellers”). In connection with the FPAs, the Company recognized other expense of $30.7 million in the fiscal year ended December 31, 2023 in connection with the issuance of 5,670,000 shares of the Company’s common stock to the related party FPA Sellers.

Pursuant to the terms of the FPAs, the FPA Sellers may purchase through a broker in the open market, from holders of shares other than the Company or affiliates thereof, FACT’s ordinary shares, par value of $0.0001 per share, (the “Shares”). While the FPA Sellers have no obligation to purchase any Shares under the FPAs, the aggregate total Shares that may be purchased under the FPAs shall be no more than 6,720,000 in aggregate. The FPA Sellers may not beneficially own greater than 9.9% of issued and outstanding Shares following the Mergers as per the Amended and Restated Business Combination Agreement.

The key terms of the forward contracts are as follows:

●

The FPA Sellers can terminate the transaction following the Optional Early Termination (“OET”) Date which shall specify the quantity by which the number of shares is to be reduced (such quantity, the “Terminated Shares”). Seller shall terminate the transaction in respect of any shares sold on or prior to the maturity date. The counterparty is entitled to an amount from the Seller equal to the number of terminated shares multiplied by a reset price. The reset price is initially $10.56 (the “Initial Price”) and is subject to a $5.00 floor.

●

The FPA contains multiple settlement outcomes. Per the terms of the agreements, the FPAs will (1) settle in cash in the event the Company is due cash upon settlement from the FPA Sellers or (2) settle in either cash or shares, at the discretion of the Company, should the settlement amount adjustment exceed the settlement amount. Should the Company elect to settle via shares, the equity will be issued in Complete Solaria Common Stock, with a per share price based on the volume-weighted average price (“VWAP”) Price over 15 scheduled trading days. The magnitude of the settlement is based on the Settlement Amount, an amount equal to the product of: (1) Number of shares issued to the FPA Seller pursuant to the FPA, less the number of Terminated Shares multiplied by (2) the VWAP Price over the valuation period. The Settlement amount will be reduced by the Settlement Adjustment, an amount equal to the product of (1) Number of shares in the Pricing Date Notice, less the number of Terminated Shares multiplied by $2.00.

●

The Settlement occurs as of the Valuation Date, which is the earlier to occur of (a) the date that is two years after the date of the Closing Date of the Mergers (b) the date specified by Seller in a written notice to be delivered to Counterparty at Seller’s discretion (which Valuation Date shall not be earlier than the day such notice is effective) after the occurrence of certain triggering events; and (c) 90 days after delivery by the Counterparty of a written notice in the event that for any 20 trading days during a 30 consecutive trading day-period (the “Measurement Period”) that occurs at least 6 months after the Closing Date, the VWAP Price is less than the then applicable Reset Price.

The Company entered into four separate FPAs, three of which, associated with the obligation to issue 6,300,000 Shares, were entered into prior to the closing of the Mergers. Upon signing the FPAs, the Company incurred an obligation to issue a fixed number of shares to the FPA Sellers contingent upon the closing of the Mergers in addition to the terms and conditions associated with the settlement of the FPAs. The Company accounted for the contingent obligation to issue shares in accordance with ASC 815, Derivatives and Hedging, and recorded a liability and other income (expense), net based on the fair value of the obligation upon the signing of the FPAs. The liability was extinguished in July 2023 upon the issuance of Complete Solaria Common Stock to the FPA sellers.

Additionally, in accordance with ASC 480, Distinguishing Liabilities from Equity, the Company determined that the forward contract is a financial instrument other than a share that represents or is indexed to obligations to repurchase the issuer’s equity shares by transferring assets, referred to herein as the “forward purchase liability” on its consolidated balance sheets. The Company initially measured the forward purchase liability at fair value and has subsequently remeasured it at fair value with changes in fair value recognized in earnings.

As of the closing of the Mergers and issuance of the Complete Solaria Common Stock underlying the FPAs, the fair value of the prepaid FPAs was an asset balance of $0.1 million and was recorded on the Company’s consolidated balance sheets and within Other income (expense), net on the consolidated statements of operations and comprehensive loss.

On December 18, 2023, the Company and the FPA Sellers entered into separate amendments to the FPA (the “Amendments”). The Amendments lowered the reset floor price of each FPA from $5.00 to $3.00 and allow the Company to raise up to $10.0 million of equity from existing stockholders without triggering certain anti-dilution provisions contained in the FPA; provided, the insiders pay a price per share for their initial investment equal to the closing price per share as quoted on the Nasdaq on the day of purchase; provided, further, that any subsequent investments are made at a price per share equal to the greater of (a) the closing price per share as quoted by Nasdaq on the day of the purchase or (b) the amount paid in connection with the initial investment.

On May 7 and 8, 2024, respectively, the Company entered into and executed separate amendments to the FPAs (collectively the “Second Amendments”) with Sandia (the “Sandia Second Amendment”) and Polar (the “Polar Second Amendment”). The Second Amendments lowered the reset price of each FPA from $3.00 to $1.00 per share and amended the VWAP Trigger Event provision to read as “After December 31, 2024, an event that occurs if the VWAP Price, for any 20 trading days during a 30 consecutive trading day-period, is below $1.00 per Share”. The Sandia Second Amendment is not effective until the Company executes similar amendments with both Polar and Meteora.

On June 14, 2024, the Company entered into and executed an amendment to the FPA with Sandia (the “Sandia Third Amendment”). The Sandia Third Amendment set the reset price of each FPA to $1.00 per share and amended the VWAP Trigger Event provision to read as “After December 31, 2024, an event that occurs if the VWAP Price, for any 20 trading days during a 30 consecutive trading day-period, is below $1.00 per Share.”

On July 17, 2024, the Company entered into an amendment to the FPA with Polar pursuant to which the Company and Polar agreed that Section 2 (Most Favored Nation) of the FPA is applicable to all 2,450,000 shares subject to the FPA.

Through the date of issuance of the Complete Solaria Common Stock in satisfaction of the Company’s obligation to issue shares around the closing of the Mergers, the Company recorded $35.5 million to Other expense, in the fiscal year ended December 31, 2023, net associated with the issuance of 6,720,000 shares of Complete Solaria Common Stock in association with the FPAs.

The FPA liability balance was $3.5 million and $3.8 million, as of December 29, 2024 and December 31, 2023, respectively. The Company concluded that $1.3 million and $3.2 million of the FPA liability was with related parties as of December 29, 2024 and December 31, 2023, respectively. The change in the fair value of the forward purchase liabilities amounted to income of $0.3 million and expense of $3.9 million for the fiscal years ended December 29, 2024 and December 31, 2023, respectively. The change in the fair value of the FPA liability with related parties was income of $0.1 million and expense of $8.7 million ($9.1 million of expense upon issuance, net of $0.4 million of income) in the fiscal years ended December 29, 2024 and December 31, 2023, respectively.

Goodwill and Other Intangible Assets - Schedule of Other Intangible Assets with Finite Useful Lives (Details) - USD ($) $ in Thousands	Dec. 29, 2024	Dec. 31, 2023
Schedule of Other Intangible Assets with Finite Useful Lives [Line Items]
Gross Carrying Amount	$ 18,100
Accumulated Amortization	(715)
Net Book Value	17,385
Trademark – Blue Raven Solar [Member]
Schedule of Other Intangible Assets with Finite Useful Lives [Line Items]
Gross Carrying Amount	8,400
Accumulated Amortization	(210)
Net Book Value	8,190
Trademark – SunPower [Member]
Schedule of Other Intangible Assets with Finite Useful Lives [Line Items]
Gross Carrying Amount	5,200
Accumulated Amortization	(130)
Net Book Value	5,070
Developed technology [Member]
Schedule of Other Intangible Assets with Finite Useful Lives [Line Items]
Gross Carrying Amount	4,500
Accumulated Amortization	(375)
Net Book Value	$ 4,125

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis

Basic and Diluted Net Loss Per Share - Schedule of Potential Common Shares Excluded from Computation of Diluted Net Loss Per Share of Common Stock (Details) - shares	12 Months Ended
	Dec. 29, 2024	Dec. 31, 2023
Schedule of Potential Common Shares Excluded from Computation of Diluted Net Loss Per Share of Common Stock [Line Items]
Potential common shares excluded from diluted net loss per share	64,778,154	34,799,299
Common stock warrants [Member]
Schedule of Potential Common Shares Excluded from Computation of Diluted Net Loss Per Share of Common Stock [Line Items]
Potential common shares excluded from diluted net loss per share	25,434,069	23,024,556
Convertible notes [Member]
Schedule of Potential Common Shares Excluded from Computation of Diluted Net Loss Per Share of Common Stock [Line Items]
Potential common shares excluded from diluted net loss per share	27,364,717
Stock options and RSUs Issued and Outstanding [Member]
Schedule of Potential Common Shares Excluded from Computation of Diluted Net Loss Per Share of Common Stock [Line Items]
Potential common shares excluded from diluted net loss per share	11,979,368	11,774,743

Fair Value Measurements (Tables)

12 Months Ended

Dec. 29, 2024

Fair Value Measurements [Abstract]

The following table sets forth the Company’s financial assets and liabilities that were measured at fair value, on a recurring basis (in thousands):

	As of December 29, 2024
	Level 1		Level 2		Level 3		Total
Financial Assets
Restricted cash	$	3,841	$	—	$	—	$	3,841
Total	$	3,841	$	—	$	—	$	3,841
Financial Liabilities
July 2024 derivative liability⁽¹⁾	$	—	$	—	$	34,690	$	34,690
September 2024 derivative liability⁽¹⁾		—		—		62,432		62,432
Forward purchase agreements⁽²⁾		—		—		3,494		3,494
Public warrants		—		—		862		862
Private placement warrants		—		—		627		627
Working capital warrants		—		—		72		72
SAFE Agreement with related party		—		—		384		384
Total	$	—	$	—	$	102,561	$	102,561

	As of December 31, 2023
	Level 1		Level 2		Level 3		Total
Financial Assets
Restricted cash	$	3,823	$	—	$	—	$	3,823
Total	$	3,823	$	—	$	—	$	3,823
Financial Liabilities
Carlyle Warrants	$	—	$	—	$	9,515	$	9,515
Public warrants		167		—		—		167
Private placement warrants		—		122		—		122
Working capital warrants		—		13		—		13
Replacement warrants		—		—		1,310		1,310
Forward purchase agreements⁽¹⁾		—		—		3,831		3,831
Total	$	167	$	135	$	14,656	$	14,958

⁽¹⁾	A portion of these balances are with related parties. Refer to Note 15 – Borrowings and Derivative Liabilities for details.

⁽²⁾	A portion of these balances are with related parties. Refer to Note 6 – Forward Purchase Agreements for details.

Schedule of Derivative Liability Valuation Inputs

	September Notes			July Notes
Coupon rate		7.0	%		12.0	%
Conversion rate		467.84			595.24
Conversion price	$	2.14		$	1.68
Common stock price	$	1.81		$	1.81
Dividend Yield		0.0	%		0.0	%

Schedule of Measurement Inputs

The Company valued the Carlyle Warrants as of December 31, 2023, based on a Black-Scholes Option Pricing Method, which included the following inputs:

	As of December 31,
	2023
Expected term		7.0 years
Expected volatility		77	%
Risk-free interest rate		3.92	%
Expected dividend yield		0.00	%

	As of December 29,
	2024
Expected term		3.56 years
Expected volatility		68.1	%
Risk-free interest rate		4.39	%
Expected dividend yield		0.00	%

	As of
	December 29,			December 31,
	2024			2023
VWAP	$	1.78		$	1.66
Simulation period		0.55 years			1.55 years
Risk-free rate		4.28	%		4.48	%
Volatility		117	%		95	%

	As of December 31,
	2023
Expected term		0.3 years
Expected volatility		78.5	%
Risk-free interest rate		5.4	%
Expected dividend yield		0	%

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis

The following table sets forth the Company’s financial liabilities that were not measured at fair value, on a non-recurring basis (in thousands):

	As of December 29, 2024
			Fair value
	Carrying value		Estimated fair value		Level 1		Level 2		Level 3		Total
Financial Liabilities
July 2024 Notes	$	17,965	$	21,390	$	—	$	—	$	21,390	$	21,390
July 2024 Notes - related parties		24,632		33,323		—		—		33,323		33,323
September 2024 Notes		5,636		77,245		—		—		77,245		77,245
September 2024 Notes - related parties		476		8,583		—		—		8,583		8,583
Total	$	48,709	$	140,541	$	—	$	—	$	140,541	$	140,541

Tabular disclosure of the fair value measurement of assets using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income (loss), and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset.

Schedule of Loss from Continuing Operations Before Provision for Income Taxes

Income Taxes (Tables)

12 Months Ended

Dec. 29, 2024

Income Taxes [Abstract]

The Company’s loss from continuing operations before provision for income taxes for the fiscal years ended December 29, 2024 and December 31, 2023, was as follows (in thousands):

	Fiscal Year Ended
	December 29, 2024			December 31, 2023
Domestic	$	(54,444	)	$	(94,222	)
Foreign		—			(1,995	)
Total	$	(54,444	)	$	(96,217	)

Schedule of Reconciliation of Federal Statutory Income Tax Rate to Our Effective Income Tax Rate

	Fiscal Year Ended
	December 29, 2024			December 31, 2023
Statutory federal income tax	$	(11,433	)	$	(20,206	)
State income taxes, net of federal tax benefits		(2,444	)		7,833
Stock compensation		1,102			637
Fair value adjustments		(980	)		(5,540	)
Nondeductible items		1,332			141
Debt extinguishment		(6,571	)		2,171
Foreign earnings taxed at different rates		—			419
Forward purchase agreements		—			9,780
Effect of changes in tax rates		706			—
Prior year adjustments		2,058			—
Valuation allowance		16,171			3,145
Other		59			1,600
Tax Provision	$	—		$	(20	)

Schedule of Deferred Tax Assets and Liabilities

Significant components of our deferred tax assets and liabilities are as follows. Certain prior year amounts have been reclassified to conform to the current year presentation (in thousands):

	As of
	December 29,			December 31,
	2024			2023
Deferred income tax assets
Net operating loss	$	34,749		$	17,957
Debt derivatives		24,591			—
Bad debt reserve		431			2,799
Stock based compensation		452			3,060
Lease liability		1,512			10
Other reserves		3,381			3,764
Interest expense carryover		7,005			5,503
Intangibles		1,279			32
Capitalized research and development		824			808
Other		3,336			5,827
Total		77,560			39,760
Valuation allowance		(55,714	)		(38,407	)
Net deferred tax assets		21,846			1,353
Deferred income tax liabilities
Convertible loan discount		(19,175	)		(759	)
Other		(2,671	)		(594	)
Total deferred tax liabilities		(21,846	)		(1,353	)
Net deferred tax assets	$	—		$	—

Schedule of Unrecognized Tax Benefits

The following is a tabular reconciliation of the total amounts of unrecognized tax benefits (in thousands):

	Fiscal Year Ended
	December 29, 2024			December 31, 2023
Unrecognized tax benefits as of beginning of year	$	53,153		$	1,335
Increases related to prior year tax positions		—			5
Increases related to current year tax positions		—			51,813
Decreases related to prior year tax positions		(53,153	)		—
Unrecognized tax benefits as of end of year	$	—		$	53,153

Commitments and Contingencies - Schedule of Leases its Facilities Under Non-Cancelable Operating Lease Agreements (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2024	Dec. 31, 2023
Finance lease cost:
Amortization of right-of-use assets	$ 553
Interest on lease liabilities	77
Lease cost	630
Operating lease cost	1,003	1,380
Variable lease cost		342
Total lease cost	1,633	1,722
Cash paid for amounts included in the measurement of lease liabilities
Finance leases	551
Operating leases	$ 1,039	$ 1,047
Weighted-average remaining lease term (in years):
Finance leases	2 years
Operating leases	2 years 6 months	2 years 5 months 23 days
Weighted-average discount rate:
Finance Leases	7.00%
Operating leases	9.50%	15.57%

Warrants (Details)
$ / shares in Units, $ in Thousands

12 Months Ended

Jul. 31, 2024

USD ($)

$ / shares

Jul. 01, 2024

USD ($)

Jul. 31, 2023

$ / shares

Jul. 18, 2023

USD ($)

$ / shares

Dec. 29, 2024

USD ($)

$ / shares

Dec. 31, 2023

USD ($)

Sep. 09, 2024

Jun. 17, 2024

$ / shares

Apr. 30, 2024

USD ($)

Oct. 31, 2023

Nov. 30, 2022

$ / shares

Feb. 28, 2022

Oct. 31, 2021

$ / shares

Aug. 31, 2021

$ / shares

May 31, 2021

$ / shares

Jan. 31, 2020

$ / shares

Jul. 31, 2016

$ / shares

Feb. 29, 2016

$ / shares

$ 7,300

$ (2,921)

$ (29,310)

Outstanding warrants (in Shares) | shares

$ 30,700

31,670,265

27,637,266

Common stock issued percentage

2.795%

Other expense

$ 9,500

Gain on extinguishment of debt

^[1]

16,223

$ 14,033

(10,338)

Warrant expire period

July 2028

Additional paid in capital

$ 16,400

Convertible note issued

61,937

Series C-1 Warrants [Member]

Series D-7 Warrants [Member]

$ 900

1,376,414

$ 2,400

Warrant liability

$ 1,300

Replacement warrants [Member]

$ 1,300

656,630

Warrant [Member]

1,995,879

3,427,324

Outstanding warrants (in Shares) | shares

9,500

24,148

Warrant expired term

Jul. 18, 2030

Reduction to additional paid-in capital

$ 10,900

Working Capital Warrants [Member]

14,400

Working capital warrants (in Shares) | shares

$ 100

$ 70

716,668

Carlyle Warrants [Member]

Warrant exercise price (in Dollars per share) | $ / shares

1,995,879

2,190,604

2,886,952

$ 0.01

Number of share exercisable (in Shares) | shares

$ 2,900

$ 14,400

1,995,879

Outstanding warrants (in Shares) | shares

1,995,879

Common stock outstanding percentage

2.795%

Warrant issued shares (in Shares) | shares

4,936,483

Gain on extinguishment of debt

700

Modification Warrant [Member]

Liability-Classified Warrant [Member]

20,400

Reduction to additional paid-in capital

7,300

Other expense

7,300

Series B Warrants [Member]

Warrant exercise price (in Dollars per share) | $ / shares

$ 4.3

Series C Warrant [Member]

100

Warrant exercise price (in Dollars per share) | $ / shares

148,477

$ 1

Series C-1 Warrants [Member]

$ 2,300

Warrant exercise price (in Dollars per share) | $ / shares

173,067

$ 0.01

SVB Common Stock Warrants [Member]

1,400

100

Convertible note issued

$ 500

Warrant exercise price (in Dollars per share) | $ / shares

2,525

2,473

$ 0.62

$ 0.38

Promissory Note Common Stock Warrants [Member]

Warrant exercise price (in Dollars per share) | $ / shares

50,000

$ 0.01

July 2023 Common Stock Warrants [Member]

Warrant exercise price (in Dollars per share) | $ / shares

38,981

$ 0.01

Class A Common Stock Equals or Exceeds Threshold Two [Member]

$ 200

Warrant exercise price (in Dollars per share) | $ / shares

$ 0.01

Warrant Consideration [Member]

Warrant exercise price (in Dollars per share) | $ / shares

6,266,572

$ 11.5

Warrant term

10 years

Ayna Warrant [Member]

Warrant exercise price (in Dollars per share) | $ / shares

6,000,000

$ 0.01

Additional paid in capital

$ 9,200

Recognized expenses

9,200

9,200

Cantor Warrant [Member]

Warrant exercise price (in Dollars per share) | $ / shares

3,066,141

$ 1.68

Warrant term

5 years

Common Stock [Member]

Warrant issued shares (in Shares) | shares

3,676,470

Common Stock [Member] | Warrant [Member]

Common stock price (in Dollars per share) | $ / shares

$ 0.01

Risk-Free Interest Rate [Member]

4.2

Volatility Rate [Member]

Ten Days [Member]

Warrant vesting shares (in Shares) | shares

350,000

Ten Days [Member] | Warrant [Member]

350,000

Thirty Days [Member]

Warrant vesting shares (in Shares) | shares

150,000

Thirty Days [Member] | Warrant [Member]

Ninety Days [Member] | Warrant [Member]

150,000

Black-Scholes model [Member]

250,000

Black-Scholes model [Member] | Carlyle Warrants [Member]

3,400

Black-Scholes model [Member] | Measurement Input, Expected Term [Member] | Carlyle Warrants [Member]

$ 20,400

Black-Scholes model [Member] | Measurement Input, Price Volatility [Member] | Carlyle Warrants [Member]

Black-Scholes model [Member] | Risk-Free Interest Rate [Member] | Carlyle Warrants [Member]

Black-Scholes model [Member] | Measurement Input, Expected Dividend Rate [Member] | Carlyle Warrants [Member]

3.9

Series D-7 Preferred Stock [Member]

Warrant exercise price (in Dollars per share) | $ / shares

656,630

$ 2.04

Series D-7 Preferred Stock [Member] | Replacements Warrants [Member]

Warrant exercise price (in Dollars per share) | $ / shares

$ 4.09

Series D-7 Preferred Stock [Member] | First Tranche [Member]

Warrant exercise price (in Dollars per share) | $ / shares

518,752

$ 2.5

Series D-7 Preferred Stock [Member] | Second Tranche [Member]

Warrant exercise price (in Dollars per share) | $ / shares

137,878

$ 5

Common Stock for the First Tranche [Member]

Warrant exercise price (in Dollars per share) | $ / shares

$ 2.5

Common Stock for the Second Tranche [Member]

Warrant exercise price (in Dollars per share) | $ / shares

$ 5

Common Class A [Member] | Private Placement Warrants [Member]

Warrant exercise price (in Dollars per share) | $ / shares

6,266,667

$ 11.5

Common Class A [Member] | Public Warrants [Member]

Warrant exercise price (in Dollars per share) | $ / shares

8,625,000

$ 11.5

Series B Preferred Stock [Member]

Series C Preferred Stock [Member]

5,054

Number of share exercisable (in Shares) | shares

482,969

Public Warrants [Member] | Warrant [Member]

Private warrants [Member] | Warrant [Member]

$ 1,500

$ 300

Private Placement Warrants [Member] | Warrant [Member]

1,200

$ 6,400

$ 300

[1]	Includes interest expense to related parties of $7.6 million and $0.4 million during the fiscal years ended December 29, 2024 and December 31, 2023, respectively. Refer to Note 15 – Borrowings and Derivative Liabilities for details.

Consolidated Statements of Stockholders’ Deficit - USD ($) $ in Thousands	Common Stock	Additional Paid-in- Capital	Accumulated Deficit	Accumulated Other Comprehensive Income	Total
Balance at Dec. 31, 2022	$ 3	$ 190,624	$ (85,373)	$ 27	$ 105,281
Balance (in Shares) at Dec. 31, 2022	19,932,429
Conversion of 2022 Convertible Notes into common stock	$ 2	40,950			40,952
Conversion of 2022 Convertible Notes into common stock (in Shares)	5,460,075
Issuance of common stock upon the reverse capitalization, net of offering costs	$ 2	4,586			4,588
Issuance of common stock upon the reverse capitalization, net of offering costs (in Shares)	13,458,293
Reclassification of prepaid PIPE		3,500			3,500
Reclassification of prepaid PIPE (in Shares)	350,000
Reclassification of warrants between liabilities and equity		4,329			4,329
Reclassification of Legacy Complete Solaria Common stock into Complete Solaria Common Stock	(1)	2			1
Issuance of common stock in connection with forward purchase agreements		4,777			4,777
Issuance of common stock in connection with forward purchase agreements (in Shares)	1,050,000
Issuance of common stock in connection with forward purchase agreements due to related party	$ 1	30,712			30,713
Issuance of common stock in connection with forward purchase agreements due to related party (in Shares)	4,508,488
Issuance of common stock bonus shares in connection with Mergers		2,394			2,394
Issuance of common stock bonus shares in connection with Mergers (in Shares)	463,976
Residual Mergers proceeds		161			161
Modification of Carlyle Warrant		(10,862)			(10,862)
Issuance of restricted stock units		52			52
Issuance of restricted stock units (in Shares)	98,097
Issuance of common stock warrants		(3,516)			(3,516)
Issuance of common stock to related party		5,000			5,000
Issuance of common stock to related party (in Shares)	3,676,470
Exercise of common stock options		57			57
Exercise of common stock options (in Shares)	67,533
Stock-based compensation		5,199			5,199
Foreign currency translation adjustment				116	116
Net loss			(269,555)		(269,555)
Balance at Dec. 31, 2023	$ 7	277,965	(354,928)	143	$ (76,813)
Balance (in Shares) at Dec. 31, 2023	49,065,361				49,065,361
Issuance of common stock warrants		1,400			$ 1,400
Exercise of common stock options		532			532
Exercise of common stock options (in Shares)	398,883
Vesting of restricted stock units
Vesting of restricted stock units (in Shares)	669,059
Issuance of common stock warrants for services		9,179			9,179
Issuance of common stock upon conversion of SAFEs	$ 6	6,244			6,250
Issuance of common stock upon conversion of SAFEs (in Shares)	13,888,889
Exercise of common stock warrants	$ 1				1
Exercise of common stock warrants (in Shares)	5,343,616
Issuance of common stock for exchange of debt		2,220			2,220
Issuance of common stock for exchange of debt (in Shares)	1,500,000
Issuance of common stock		7,144			7,144
Issuance of common stock (in Shares)	2,918,837
Modification of Warrant Agreement		7,306			7,306
Offering costs of reverse recapitalization		(1,396)			(1,396)
Stock-based compensation		3,067			3,067
Foreign currency translation adjustment				22	22
Net loss			(56,451)		(56,451)
Balance at Dec. 29, 2024	$ 14	$ 313,661	$ (411,379)	$ 165	$ (97,539)
Balance (in Shares) at Dec. 29, 2024	73,784,645				73,784,645

Employee Benefit Plan

12 Months Ended

Dec. 29, 2024

Employee Benefit Plan [Abstract]

Employee Benefit Plan

(11) Employee Benefit Plan

The Company sponsors a 401(k) defined contribution and profit-sharing plan (“401(k) Plan”) for its eligible employees. This 401(k) Plan provides for tax-deferred salary deductions for all eligible employees. Employee contributions are voluntary. Employees may contribute the maximum amount allowed by law, as limited by the annual maximum amount as determined by the Internal Revenue Service. The Company may match employee contributions in amounts to be determined at the Company’s sole discretion. The Company made no contributions to the 401(k) Plan for the fiscal years ended December 29, 2024 and December 31, 2023.

The entire disclosure for retirement benefits.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Borrowings and Derivative Liabilities [Abstract]

Audit Information	12 Months Ended
Audit Information	Dec. 29, 2024
Auditor [Table]
Auditor Name	BDO USA, P.C.
Auditor Firm ID	243
Auditor Location	Atlanta, Georgia
Auditor Opinion [Text Block]	Opinion on the Consolidated Financial Statements We have audited the accompanying consolidated balance sheet of Complete Solaria, Inc. (the “Company”) as of December 29, 2024, the related consolidated statements of operations and comprehensive loss, stockholders’ deficit, and cash flows for the fiscal year then ended, and the related notes collectively referred to as the “consolidated financial statements.” In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company at December 29, 2024, and the results of its operations and its cash flows for the fiscal year then ended, in conformity with accounting principles generally accepted in the United States of America.

Insider Trading Arrangements	12 Months Ended
Insider Trading Arrangements	Dec. 29, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

Fair Value Measurements - Schedule of Measurement Inputs (Details)	Dec. 29, 2024	Dec. 31, 2023
Expected term [Member] \| Carlyle Warrants [Member]
Schedule of Measurement Inputs [Line Items]
Derivative liability, measurement inputs		7
Expected term [Member] \| Private Placement and Working Capital Warrants [Member]
Schedule of Measurement Inputs [Line Items]
Derivative liability, measurement inputs	3.56
Expected term [Member] \| Replacement Warrants [Member]
Schedule of Measurement Inputs [Line Items]
Derivative liability, measurement inputs		0.3
Expected volatility [Member] \| Carlyle Warrants [Member]
Schedule of Measurement Inputs [Line Items]
Derivative liability, measurement inputs		77
Expected volatility [Member] \| Private Placement and Working Capital Warrants [Member]
Schedule of Measurement Inputs [Line Items]
Derivative liability, measurement inputs	68.1
Expected volatility [Member] \| Forward Purchase Agreement Liabilities [Member]
Schedule of Measurement Inputs [Line Items]
Derivative liability, measurement inputs	117	95
Expected volatility [Member] \| Replacement Warrants [Member]
Schedule of Measurement Inputs [Line Items]
Derivative liability, measurement inputs		78.5
Risk-free interest rate [Member] \| Carlyle Warrants [Member]
Schedule of Measurement Inputs [Line Items]
Derivative liability, measurement inputs		3.92
Risk-free interest rate [Member] \| Private Placement and Working Capital Warrants [Member]
Schedule of Measurement Inputs [Line Items]
Derivative liability, measurement inputs	4.39
Risk-free interest rate [Member] \| Forward Purchase Agreement Liabilities [Member]
Schedule of Measurement Inputs [Line Items]
Derivative liability, measurement inputs	4.28	4.48
Risk-free interest rate [Member] \| Replacement Warrants [Member]
Schedule of Measurement Inputs [Line Items]
Derivative liability, measurement inputs		5.4
Expected dividend yield [Member] \| Carlyle Warrants [Member]
Schedule of Measurement Inputs [Line Items]
Derivative liability, measurement inputs		0
Expected dividend yield [Member] \| Private Placement and Working Capital Warrants [Member]
Schedule of Measurement Inputs [Line Items]
Derivative liability, measurement inputs	0
Expected dividend yield [Member] \| Replacement Warrants [Member]
Schedule of Measurement Inputs [Line Items]
Derivative liability, measurement inputs		0
VWAP [Member] \| Forward Purchase Agreement Liabilities [Member]
Schedule of Measurement Inputs [Line Items]
Derivative liability, measurement inputs	1.78	1.66
Simulation period [Member] \| Forward Purchase Agreement Liabilities [Member]
Schedule of Measurement Inputs [Line Items]
Derivative liability, measurement inputs	0.55	1.55

Income Taxes - Schedule of Reconciliation of Federal Statutory Income Tax Rate to Our Effective Income Tax Rate (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2024	Dec. 31, 2023
Schedule of Reconciliation of Federal Statutory Income Tax Rate to Our Effective Income Tax Rate [Abstract]
Statutory federal income tax	$ (11,433)	$ (20,206)
State income taxes, net of federal tax benefits	(2,444)	7,833
Stock compensation	1,102	637
Fair value adjustments	(980)	(5,540)
Nondeductible items	1,332	141
Debt extinguishment	(6,571)	2,171
Foreign earnings taxed at different rates		419
Forward purchase agreements		9,780
Effect of changes in tax rates	706
Prior year adjustments	2,058
Valuation allowance	16,171	3,145
Other	59	1,600
Tax Provision		$ (20)

Stock-Based Compensation - Schedule of RSU Activity (Details) - Restricted Stock Units (RSUs) [Member]	12 Months Ended
	Dec. 29, 2024 $ / shares shares
Schedule of RSU Activity [Line Items]
Number of RSUs, Unvested, Beginning balance \| shares	58,097
Weighted average grant date fair value, Unvested, Beginning balance \| $ / shares	$ 2.07
Number of RSUs, Granted \| shares	2,593,097
Weighted average grant date fair value, Granted \| $ / shares	$ 1.78
Number of RSUs, Vested and released \| shares	(669,059)
Weighted average grant date fair value, Vested and released \| $ / shares	$ 1.73
Number of RSUs, Cancelled or forfeited \| shares
Weighted average grant date fair value, Cancelled or forfeited \| $ / shares
Number of RSUs, Unvested, Ending balance \| shares	1,982,135
Weighted average grant date fair value, Unvested, Ending balance \| $ / shares	$ 1.79

Borrowings and Derivative Liabilities (Tables)

12 Months Ended

Dec. 29, 2024

Schedule of Borrowings and Derivative Liabilities

The Company’s borrowings and derivative liabilities consisted of the following (in thousands):

	As of
	December 29,			December 31,
	2024			2023
July 2024 Notes	$	17,965		$	—
July 2024 Notes derivative liability		13,563			—
July 2024 Notes – related parties		24,632			—
July 2024 derivative liability – related parties		21,127			—
September 2024 Notes		5,636			—
September 2024 Notes derivative liability		55,474			—
September 2024 Notes – related party		476			—
September 2024 Notes – derivative liability – related party		6,958			—
2018 Bridge Notes		—			11,031
Revolver Loan		1,500			5,168
Secured Credit Facility		—			12,158
Polar Settlement Agreement		—			300
Total Notes payable		147,331			28,657
Debt in CS Solis		—			33,280
Total notes payable and convertible notes, net		—			61,937
Less current portion		(1,500	)		(61,937	)
Notes payable and convertible notes, net of current portion	$	145,831		$	—

Consolidated Statements of Cash Flows - USD ($)
$ in Thousands

12 Months Ended

Dec. 29, 2024

Dec. 31, 2023

Cash flows from operating activities from continuing operations

Net loss

$ (56,451)

$ (269,555)

Loss from discontinued operations, net of income taxes

(2,007)

(173,358)

Net loss from continuing operations, net of tax

(54,444)

(96,197)

Adjustments to reconcile net loss from continuing operations to net cash used in operating activities:

Stock-based compensation expense

3,067

3,364

Non-cash interest expense

^[1]

1,757

4,882

Accretion of debt in CS Solis

^[2]

3,872

6,579

Non-cash lease expense

816

947

Loss on CS Solis debt extinguishment

^[3]

(22,337)

10,338

Depreciation and amortization

2,736

930

Amortization of debt issuance costs

^[4]

5,842

Other financing costs

450

Provision for credit losses

9,132

4,274

Change in reserve for excess and obsolete inventory

6,148

Change in fair value of SAFE Agreements with related party

(616)

Loss on conversion of SAFE Agreements to shares of common stock with related party

1,250

Loss on sale of equity securities

4,154

Loss on issuance of derivative liability

^[5],[6]

24,688

Change in fair value of derivative liabilities

^[7]

(33,986)

Change in fair value of warrant liabilities

(2,921)

(29,310)

Issuance of forward purchase agreements

^[8]

(76)

Change in fair value of forward purchase agreement liabilities

^[9]

(337)

3,906

Loss on issuance of common stock in connection with forward purchase agreements

^[10]

35,490

Non-cash expense in connection with warrants issued for vendor services

9,179

Loss on asset impairments and disposals

3,827

Loss on issuance of common stock bonus shares in connection with the Mergers

^[11]

2,394

Issuance of restricted stock units in connection with vendor services

Changes in operating assets and liabilities:

Accounts receivable

3,306

(12,106)

Contract assets, current portion

(21,451)

Inventories

8,654

1,544

Prepaid expenses and other current assets

(170)

(4,197)

Other noncurrent assets

111

1,132

Accounts payable

(10,412)

2,292

Accrued expenses and other current liabilities

14,071

(3,313)

Operating lease liabilities

(849)

(598)

Warranty provision, noncurrent

255

Deferred revenue

(1,685)

Net cash used in operating activities from continuing operations

(54,662)

(58,802)

Net cash provided by operating activities from discontinued operations

190

Net cash used in operating activities

(54,662)

(58,612)

Cash flows from investing activities from continuing operations

Purchases of property and equipment

(35)

Capitalization of internal-use-software costs

(1,157)

(1,939)

Cash paid for acquisitions; net of cash acquired

(53,500)

Proceeds from the sale of equity securities

8,145

Net cash (used in) provided by investing activities

(54,657)

6,171

Cash flows from financing activities from continuing operations

Proceeds from issuance of notes payable, net of issuance cost

14,102

Principal repayment of notes payable

(300)

(9,803)

Proceeds from issuance of convertible notes, net of issuance cost

81,725

17,750

Proceeds from issuance of convertible notes to related parties

26,000

3,500

Proceeds from issuance of SAFE agreements

6,000

Proceeds from issuance of common stock

6,694

Proceeds from exercise of common stock options

532

Proceeds from Mergers and PIPE Financing

4,219

Proceeds from Mergers and PIPE Financing from related parties

15,600

Proceeds from common stock

5,000

Financing lease payments

(551)

Net cash provided by financing activities from continuing operations

120,100

50,425

Effect of exchange rate changes

116

Net increase (decrease) in cash, cash equivalents and restricted cash

10,803

(1,900)

Cash, cash equivalents, and restricted cash at beginning of period

6,416

8,316

Cash, cash equivalents, and restricted cash at end of period

17,219

6,416

Supplemental disclosures of cash flow information:

Cash paid during the year for interest

2,147

Cash paid during the year for income taxes

Supplemental schedule of noncash investing and financing activities:

Cancellation of existing indebtedness in Exchange Agreement

^[12]

65,873

Issuance of convertible notes in Exchange Agreement

^[13]

42,662

Issuance of common stock in Exchange Agreement

2,220

Conversion of SAFE Agreements to shares of common stock – related party

5,000

Operating lease right-of-use assets obtained in exchange for new operating lease liabilities

116

Offering costs

1,396

Warrants issued in debt issuance

860

Carlyle Warrant modification – related party

7,306

10,862

Conversion of 2022 Convertible notes into common stock

30,625

Issuance of common stock warrants

3,516

Conversion of 2022 Convertible Notes into common stock

21,561

Conversion of 2022 Convertible Notes issued to related parties into common stock

19,390

Conversion of preferred stock into common stock

155,630

Issuance of common stock in connection with forward purchase agreements

^[9]

35,490

Issuance of common stock bonus shares in connection with the Mergers

^[10]

2,394

Recapitalization of Legacy Complete Solaria Common stock into Complete Solaria Common Stock

Reclassification of investor deposit to PIPE funds

3,500

Reclassification of warrants between liabilities and equity

$ 4,329

[1]	Non-cash interest expense to related parties of zero and $0.4 million during the fiscal years ended December 29, 2024 and December 31, 2023, respectively.
[2]	Identified as a related party transaction in the fiscal year ended December 29, 2024.
[3]	Gain includes $12.5 million with a related party in the fiscal year ended December 29, 2024. Refer to Note 15 – Borrowings and Derivative Liabilities for details.
[4]	Includes $1.6 million of amortization of debt issuance costs with related parties.
[5]	Includes a loss of $3.0 million on the issuance of a derivative liability with a related party in the fiscal year ended December 29, 2024. Refer to Note 15 – Borrowings and Derivative Liabilities for details.
[6]	Includes $3.0 million loss on a derivative liability issued to the Massey Trust (as later defined in Note 15 – Borrowings and Derivative Liabilities) a related party and $0.3 of gain in connection with the change in the fair value of derivative liabilities issued to the Massey Trust and Carlyle (as later defined in Note 15 – Borrowings and Derivative Liabilities), related parties, during the fiscal year ended December 29, 2024.
[7]	Includes $0.3 million gain in connection with the change in the fair value of derivative liabilities issued to the Massey Trust and Carlyle (as later defined in Note 15 – Borrowings and Derivative Liabilities) with related parties.
[8]	Issuance of forward purchase agreements includes other income from related parties of zero and $0.4 million during the fiscal years ended December 29, 2024 and December 31, 2023, respectively.
[9]	Change in fair value of forward purchase agreement liabilities from related parties was income of $0.1 million and ($9.1) million during the fiscal years ended December 29, 2024 and December 31, 2023, respectively.
[10]	Issuance of common stock in connection with forward purchase agreements includes other expense from related parties of zero and ($30.7) million during the fiscal years ended December 29, 2024 and December 31, 2023, respectively.
[11]	Issuance of common stock bonus shares to related parties in connection with the Mergers includes other expense of $0.7 million during the fiscal year ended December 31, 2023.
[12]	Includes related party debt cancellation of $37.2 million.
[13]	Includes $23.7 million issuance of convertible notes in exchange agreement with a related party.

Commitments and Contingencies (Tables)

12 Months Ended

Dec. 29, 2024

Commitments and Contingencies [Abstract]

Schedule of Leases its Facilities Under Non-Cancelable Operating Lease Agreements

	Fiscal Year Ended
	December 29,			December 31,
	2024			2023
Lease cost
Finance lease cost:
Amortization of right-of-use assets	$	553		$	—
Interest on lease liabilities		77			—
		630			—
Operating lease cost		1,003			1,380
Variable lease cost		-			342
Total lease cost	$	1,633		$	1,722
Other information
Cash paid for amounts included in the measurement of lease liabilities
Finance leases	$	551		$	—
Operating leases		1,039			1,047
Weighted-average remaining lease term (in years):
Finance leases		2			—
Operating leases		2.5			2.48
Weighted-average discount rate:
Finance Leases		7	%		—	%
Operating leases		9.5	%		15.57	%

Schedule of Future Minimum Lease Payments Under Non-Cancelable Operating Lease

Future minimum lease payments under non-cancellable leases are as follows as of December 29, 2024 (in thousands):

	Finance Leases			Operating Leases
Fiscal year ending
2025	$	2,285		$	1,687
2026		1,749			1,605
2027		247			801
Total undiscounted liabilities		4,281			4,093
Less: imputed interest		(352	)		(413	)
Total lease liabilities	$	3,929		$	3,680

Schedule of Warranty Provision

Activity by period relating to the Company’s warranty provision was as follows (in thousands):

	Fiscal Year Ended
	December 29,			December 31,
	2024			2023
Warranty provision, beginning of period	$	4,849		$	3,981
Warranty liability from Business Combination		582			—
Accruals for new warranties issued		695			2,968
Settlements		(158	)		(2,100	)
Warranty provision, end of period	$	5,968		$	4,849
Warranty provision, current	$	2,531		$	1,433
Warranty provision, noncurrent		3,437			3,416

Stock-Based Compensation - Schedule of Stock Option Activity (Details) - Stock Option [Member] - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
	Dec. 31, 2023	Dec. 29, 2024
Schedule of Stock Option Activity [Line Items]
Number of shares, outstanding	11,716,646	9,997,233
Weighted average exercise price per share, outstanding	$ 3.48	$ 2.77
Weighted Average Contractual Term (Years), outstanding	8 years 6 months 10 days	5 years 3 months 14 days
Aggregate Intrinsic Value, outstanding	$ 2,756	$ 6,356
Number of shares, Vested and expected to vest		9,997,233
Weighted average exercise price per share, Vested and expected to vest		$ 2.77
Weighted Average Contractual Term (Years), Vested and expected to vest		5 years 3 months 14 days
Aggregate Intrinsic Value, Vested and expected to vest		$ 6,356
Number of Shares, Vested and exercisable		4,264,705
Weighted Average Exercise Price per Share, Vested and exercisable		$ 3.54
Weighted Average Contractual Term (Years), Vested and exercisable		3 years 9 months
Aggregate Intrinsic Value , Vested and exercisable		$ 1,857
Number of shares, Options granted		6,121,251
Weighted average exercise price per share, Options granted		$ 0.93
Number of shares, Options exercised		(398,883)
Weighted average exercise price per share, Options exercised		$ 0.77
Aggregate Intrinsic Value, Options exercised		$ 39
Number of shares, Options canceled		(7,441,781)
Weighted average exercise price per share, Options canceled		$ 0.17

Reverse Recapitalization (Tables)

12 Months Ended

Dec. 29, 2024

Reverse Recapitalization [Abstract]

Schedule of Reconciles Elements of the Merger

The following table reconciles the elements of the Mergers to the audited consolidated statements of cash flows and the audited consolidated statements of stockholders’ deficit for the year-ended December 31, 2023 (in thousands):

	Recapitalization
Cash proceeds from FACT, net of redemptions	$	36,539
Cash proceeds from PIPE Financing		12,800
Less: cash payment of FACT transaction costs and underwriting fees		(10,680	)
Less: cash payment to FPA investors for rebates and recycled shares		(17,831	)
Less: cash payment for Promissory Note		(1,170	)
Net cash proceeds upon the closing of the Mergers and PIPE financing		19,658
Less: non-cash net liabilities assumed from FACT		(10,135	)
Net contributions from the Mergers and PIPE financing upon closing	$	9,523

Schedule of Common Stock Outstanding

The following table presents the number of shares of Complete Solaria Common Stock outstanding immediately following the consummation of the Mergers:

	Recapitalization
FACT Class A Ordinary Shares, outstanding prior to Mergers		34,500,000
FACT Class B Ordinary Shares, outstanding prior to Mergers		8,625,000
Bonus shares issued to sponsor		193,976
Bonus shares issued to PIPE investors		120,000
Bonus shares issued to FPA investors		150,000
Shares issued from PIPE financing		1,690,000
Shares issued from FPA agreements, net of recycled shares		5,558,488
Less: redemption of FACT Class A Ordinary Shares		(31,041,243	)
Total shares from the Mergers and PIPE Financing		19,796,221
Legacy Complete Solaria shares		20,034,257
2022 Convertible Note Shares		5,460,075
Shares of Complete Solaria Common stock immediately after Mergers		45,290,553

Warrants - Schedule of Liability-Classified Warrants (Details) - USD ($) $ in Thousands	Dec. 29, 2024	Dec. 31, 2023
Carlyle warrant [Member]
Schedule of Liability-Classified Warrants [Line Items]
Warrant liability		$ 9,515
Replacement warrants [Member]
Schedule of Liability-Classified Warrants [Line Items]
Warrant liability		1,310
Public warrants [Member]
Schedule of Liability-Classified Warrants [Line Items]
Warrant liability	862	167
Private placements warrants [Member]
Schedule of Liability-Classified Warrants [Line Items]
Warrant liability	627	122
Working capital warrants [Member]
Schedule of Liability-Classified Warrants [Line Items]
Warrant liability	72	13
Warrant [Member]
Schedule of Liability-Classified Warrants [Line Items]
Warrant liability	$ 1,561	$ 11,127

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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Segment Information - Schedule of Assets by Segment (Details) - USD ($) $ in Thousands	Dec. 29, 2024	Dec. 31, 2023
Schedule of Assets by Segment [Line Items]
Total assets	$ 144,466	$ 47,322
Residential Solar Installation [Member]
Schedule of Assets by Segment [Line Items]
Total assets	66,145	47,322
New Homes Business [Member]
Schedule of Assets by Segment [Line Items]
Total assets	$ 78,321

Amount of asset recognized for present right to economic benefit.

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Segment Information - Schedule of Financial Performance through Reportable Segments (Details) - USD ($)
$ in Thousands

12 Months Ended

Dec. 29, 2024

Dec. 31, 2023

$ 108,742

$ 87,616

Less:

30,609

24,590

31,127

76,594

32,099

Reconciliation of segment loss from continuing operations before income taxes:

(68,509)

(52,358)

^[1]

7,932

(29,862)

^[2]

22,337

Residential Solar Installation [Member]

(54,444)

(96,217)

67,460

87,616

Less:

45,266

69,828

23,388

31,127

6,827

6,920

9,805

^[3]

32,099

^[4]

Reconciliation of segment loss from continuing operations before income taxes:

(17,826)

(52,358)

General corporate expense

New Homes Business [Member]

41,282

Less:

23,974

1,202

3,232

^[3]

^[4]

Reconciliation of segment loss from continuing operations before income taxes:

12,874

General corporate expense

Reportable Segments [Member]

108,742

87,616

Less:

69,240

69,828

24,590

31,127

6,827

6,920

13,037

^[3]

32,099

^[4]

Reconciliation of segment loss from continuing operations before income taxes:

(4,952)

(52,358)

General corporate expense

(63,557)

(16,223)

(14,033)

7,932

(29,862)

22,337

Basic and Diluted Net Loss Per Share [Abstract]

$ (54,444)

$ (96,217)

[1]	Other income (expense), net in the fiscal year ended December 29, 2024 includes the following related party transactions; (i) $0.7 million of expense in connection with the conversion of SAFE Agreements into shares of common stock and the change in the fair value of SAFE Agreements (defined in the notes to the consolidated financial statements), (ii) $3.0 million of expense in connection with the loss on issuance of a derivative liability and $0.3 million of income due to the change in the value of derivative liabilities, and (iii) income of $0.1 million of expense in connection with the change in the fair value of forward purchase agreements. Other income (expense), net in the fiscal year ended December 31, 2023, includes the following related party transaction; $0.7 million of expense for bonus shares issued in connection with the Mergers; $0.4 million of forward purchase agreements entered into and $9.1 million of change in the fair value of the forward purchase agreements; and $30.7 million of expense for shares issued in connection with the forward purchase agreements. Other income (expense), net in the fiscal year ended December 31, 2023, includes the following related party transaction; $0.7 million of expense for bonus shares issued in connection with the Mergers; $0.4 million of forward purchase agreements entered into and $9.1 million of change in the fair value of the forward purchase agreements; and $30.7 million of expense for shares issued in connection with the forward purchase agreements.
[2]	Gain includes $12.5 million with a related party in the fiscal year ended December 29, 2024. Refer to Note 15 – Borrowings and Derivative Liabilities for details.
[3]	For the year ended December 29, 2024, depreciation and amortization expense was $2.6 million and $0.1 million for the Residential Solar Installation and New Homes Business reportable segments, respectively.
[4]	For the year ended December 31, 2023, depreciation and amortization expense was $0.9 million for the Residential Solar Installation reportable segment.

Basic and Diluted Net Loss Per Share

12 Months Ended

Dec. 29, 2024

Basic and Diluted Net Loss Per Share

(21) Basic and Diluted Net Loss Per Share

The Company uses the two-class method to calculate net loss per share. No dividends were declared or paid for the fiscal years ended December 29, 2024 and December 31, 2023.

	Fiscal Year Ended
	December 29,			December 31,
	2024			2023
Numerator for basic loss per share:
Net loss from continuing operations	$	(54,444	)	$	(96,197	)
Net loss from discontinued operations		(2,007	)		(25,853	)
Impairment loss from discontinued operations		—			(147,505	)
Net loss		(56,451	)		(269,555	)
Numerator for diluted loss per share
Impact of September 2024 Notes derivative liability and interest expense, net of tax		(35,886	)		—
Net loss	$	(92,337	)	$	(269,555	)
Denominator:
Weighted average shares:
Denominator for basic loss per share		66,655,837			24,723,370
Effect of dilutive securities:
September 2024 Notes derivative liability		9,137,711			—
Denominator for diluted loss per share		75,793,548			24,723,370
Net loss per share:
Continuing operations – basic	$	(0.82	)	$	(3.89	)
Discontinued operations - basic		(0.03	)		(1.05	)
Net loss - basic	$	(0.85	)	$	(4.94	)

Continuing operations – diluted	$	(1.19	)	$	(3.89	)
Discontinued operations – diluted		(0.03	)		(1.05	)
Net loss – diluted	$	(1.22	)	$	(4.94	)

The computation of basic net loss per share attributable to common stockholders is inclusive of warrants with an insignificant exercise price. The Company’s calculation of the weighted average shares outstanding is inclusive of 3,427,324 warrants with an insignificant exercise price (which assumes that the warrants were outstanding as of the beginning of the period or the date of the grant, whichever is earlier) for the fiscal year ended December 29, 2024. The computation of diluted net loss per share attributable to common stockholders is inclusive of the impact of the Company’s September 2024 Notes (which were dilutive) using the if-converted method for the year ended December 29, 2024. The computation of basic and diluted net loss per share attributable to common stockholders is the same for the fiscal year ended December 31, 2023 because the inclusion of potential shares of common stock would have been anti-dilutive.

	Fiscal Year Ended
	December 29,		December 31,
	2024		2023
Common stock warrants		25,434,069		23,024,556
Convertible notes		27,364,717		—
Stock options and RSUs issued and outstanding		11,979,368		11,774,743
Potential common shares excluded from diluted net loss per share		64,778,154		34,799,299

Basic and Diluted Net Loss Per Share (Details) - USD ($)	12 Months Ended
	Dec. 29, 2024	Dec. 31, 2023	Jul. 31, 2023
Basic and Diluted Net Loss Per Share [Line Items]
Dividends
Warrant [Member]
Basic and Diluted Net Loss Per Share [Line Items]
Weighted average shares outstanding (in Shares)	3,427,324		1,995,879

Accrued Expenses and Other Current Liabilities

12 Months Ended

Dec. 29, 2024

Accrued Expenses and Other Current Liabilities [Abstract]

Accrued Expenses and Other Current Liabilities

(10) Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities consist of the following (in thousands):

	As of
	December 29,		December 31,
	2024		2023
Accrued compensation and benefits	$	6,619	$	3,969
Professional fees		8,028		—
Installation costs		6,177		—
Term loan and revolving loan amendment final payment fees		—		2,400
Accrued legal settlements		7,700		7,700
Accrued taxes		769		931
Accrued rebates and credits		7,641		677
Operating lease liabilities, current		1,412		607
Finance lease liabilities, current		2,053		—
Accrued warranty, current		2,531		1,433
Deferred financing fees		4,674		—
Accrued interest		1,982		—
Accrued interest due to related parties		2,541		—
Other accrued liabilities		3,954		10,153
Total accrued expenses and other current liabilities	$	56,081	$	27,870

Property and Equipment, Net

12 Months Ended

Dec. 29, 2024

Property and Equipment, Net [Abstract]

Property and Equipment, Net

(9) Property and Equipment, Net

Property and equipment, net consist of the following (in thousands):

	As of
	December 29,			December 31,
	2024			2023
Internal-use software	$	420		$	6,993
Manufacturing equipment		73			131
Furniture and equipment		724			96
Vehicles		5,174			—
Leasehold improvements		18			708
Total property and equipment		6,409			7,928
Less: accumulated depreciation and amortization		(916	)		(3,611	)
Total property and equipment, net	$	5,493		$	4,317

Depreciation and amortization expense on totaled $2.0 million and $0.9 million for the fiscal years ended December 29, 2024 and December 31, 2023. Finance leases are included within vehicles and makes up $3.9 million of the total balance as of fiscal year ended December 29, 2024.

The Company recognized a total of $3.8 million on impairment and loss on disposal of property and equipment for the fiscal year ended December 29, 2024 consisting primarily of $3.4 million relating to its proprietary HelioTrackTM software system. The Company impaired the value of its HelioTrackTM software as this software has no future use following the completion of the migration to software acquired in the SunPower Acquisition. There were no impairment charges on tangible assets recognized for the fiscal year ended December 31, 2023.

Consolidated Balance Sheets (Parentheticals) - $ / shares	Dec. 29, 2024	Dec. 31, 2023
Statement of Financial Position [Abstract]
Common stock, par value (in Dollars per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized	1,000,000,000	60,000,000
Common stock, shares issued	73,784,645	49,065,361
Common stock, shares outstanding	73,784,645	49,065,361

Segment Information (Details) $ in Thousands	12 Months Ended
Segment Information (Details) $ in Thousands	Dec. 29, 2024 USD ($) segments	Dec. 31, 2023 USD ($)
Segment Information [Line items]
Reportable segments (in segments) \| segments	2
Depreciation Depreciation and amortization expenseand amortization expense	$ 2,736	$ 930
Residential Solar Installation [Member]
Segment Information [Line items]
Depreciation Depreciation and amortization expenseand amortization expense	2,600	$ 900
New Homes Business [Member]
Segment Information [Line items]
Depreciation Depreciation and amortization expenseand amortization expense	$ 100

Warrants (Tables)

12 Months Ended

Dec. 29, 2024

Warrants [Abstract]

Schedule of Liability-Classified Warrants

Liability classified warrants are as follows (in thousands):

	As of
	December 29,		December 31,
	2024		2023
Carlyle Warrant	$	—	$	9,515
Replacement warrants		—		1,310
Public warrants		862		167
Private placements warrants		627		122
Working capital warrants		72		13
Total liability classified warrants	$	1,561	$	11,127

Fair Value Measurements - Schedule of Derivative Liability Valuation Inputs (Details)	Sep. 30, 2024	Jul. 31, 2024
Coupon rate [Member] \| September Notes [Member]
Schedule of Derivative Liability Valuation Inputs [Line Items]
Derivative liability, measurement inputs	7
Coupon rate [Member] \| July Notes [Member]
Schedule of Derivative Liability Valuation Inputs [Line Items]
Derivative liability, measurement inputs		12
Conversion rate [Member] \| September Notes [Member]
Schedule of Derivative Liability Valuation Inputs [Line Items]
Derivative liability, measurement inputs	467.84
Conversion rate [Member] \| July Notes [Member]
Schedule of Derivative Liability Valuation Inputs [Line Items]
Derivative liability, measurement inputs		595.24
Conversion price [Member] \| September Notes [Member]
Schedule of Derivative Liability Valuation Inputs [Line Items]
Derivative liability, measurement inputs	2.14
Conversion price [Member] \| July Notes [Member]
Schedule of Derivative Liability Valuation Inputs [Line Items]
Derivative liability, measurement inputs		1.68
Common stock price [Member] \| September Notes [Member]
Schedule of Derivative Liability Valuation Inputs [Line Items]
Derivative liability, measurement inputs	1.81
Common stock price [Member] \| July Notes [Member]
Schedule of Derivative Liability Valuation Inputs [Line Items]
Derivative liability, measurement inputs		1.81
Dividend Yield [Member] \| September Notes [Member]
Schedule of Derivative Liability Valuation Inputs [Line Items]
Derivative liability, measurement inputs	0
Dividend Yield [Member] \| July Notes [Member]
Schedule of Derivative Liability Valuation Inputs [Line Items]
Derivative liability, measurement inputs		0

Summary of Significant Accounting Policies (Details) - USD ($)	12 Months Ended
	Dec. 29, 2024	Dec. 31, 2023
Summary of Significant Accounting Policies [Line Items]
Cash balance	$ 13,400,000	$ 2,600,000
Increase in contract assets	26,066,000
Revenue recognized	3,500,000	2,100,000
Deferred long-term service contract	900,000	1,200,000
Deferred commissions	0	4,200,000
Capitalized cost	1,200,000	1,900,000
Unamortized balance	$ 200,000	$ 3,800,000
Portion of tax benefit recorded positions more likely than not to be sustained	50.00%
Lease term	12 months
Minimum [Member]
Summary of Significant Accounting Policies [Line Items]
Guarantees to customers installation	10 years
Maximum [Member]
Summary of Significant Accounting Policies [Line Items]
Guarantees to customers installation	30 years
Customer Concentration Risk [Member] \| Customer One [Member] \| Accounts Receivable [Member]
Summary of Significant Accounting Policies [Line Items]
Concentration risk percentage		38.00%
Customer Concentration Risk [Member] \| Customer One [Member] \| Revenue Benchmark [Member]
Summary of Significant Accounting Policies [Line Items]
Concentration risk percentage	55.00%	55.00%
Customer Concentration Risk [Member] \| Customer Two [Member] \| Accounts Receivable [Member]
Summary of Significant Accounting Policies [Line Items]
Concentration risk percentage
Customer Concentration Risk [Member] \| Three Customer [Member] \| Revenue Benchmark [Member]
Summary of Significant Accounting Policies [Line Items]
Concentration risk percentage	36.00%	55.00%
Credit Concentration Risk [Member] \| Customer Two [Member] \| Accounts Receivable [Member]
Summary of Significant Accounting Policies [Line Items]
Concentration risk percentage		16.00%
Supplier Concentration Risk [Member] \| Inventory Purchases [Member] \| Suppliers One [Member]
Summary of Significant Accounting Policies [Line Items]
Concentration risk percentage		40.00%

Summary of Significant Accounting Policies - Schedule of Revenue Recognized (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2024	Dec. 31, 2023
Schedule of Revenue Recognized By Product and Services [Line Items]
Total revenue	$ 108,742	$ 87,616
Residential Solar Installations [Member]
Schedule of Revenue Recognized By Product and Services [Line Items]
Total revenue	67,460	87,616
New Homes Business [Member]
Schedule of Revenue Recognized By Product and Services [Line Items]
Total revenue	41,282
Revenue Recognized Over Time [Member] \| Residential Solar Installations [Member]
Schedule of Revenue Recognized By Product and Services [Line Items]
Total revenue	67,460	84,858
Revenue Recognized Over Time [Member] \| New Homes Business [Member]
Schedule of Revenue Recognized By Product and Services [Line Items]
Total revenue	32,205
Revenue Recognized at a Point in Time [Member] \| Residential Solar Installations [Member]
Schedule of Revenue Recognized By Product and Services [Line Items]
Total revenue		2,758
Revenue Recognized at a Point in Time [Member] \| New Homes Business [Member]
Schedule of Revenue Recognized By Product and Services [Line Items]
Total revenue	$ 9,077

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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Summary of Significant Accounting Policies - Schedule of Reconciles Cash, Cash Equivalents, and Restricted Cash (Details) - USD ($) $ in Thousands	Dec. 29, 2024	Dec. 31, 2023	Dec. 31, 2022
Schedule of Reconciles Cash, Cash Equivalents, and Restricted Cash [Abstract]
Cash and cash equivalents	$ 13,378	$ 2,593
Restricted cash	3,841	3,823
Total cash, cash equivalents, and restricted cash	$ 17,219	$ 6,416	$ 8,316

Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
Income Taxes (Details) - USD ($) $ in Thousands	Dec. 29, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Taxes [Line Items]
Net deferred tax assets, valuation allowance	$ 55,714	$ 38,407
Valuation allowance increased	17,300
Net operating loss carryforwards for federal	127,300
Net operating loss carryforwards for state income tax	106,700
Federal net operating losses carryforwards subject to expire	$ 111,500
Percentage of change in cumulative ownership	50.00%
Unrecognized tax benefit		53,153	$ 1,335
Unrecognized Tax Benefit [Member]
Income Taxes [Line Items]
Unrecognized tax benefit	$ 53,100	$ 0

Business Combination (Details) - USD ($) $ in Thousands		12 Months Ended
Business Combination (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 29, 2024	Dec. 31, 2023
Business Combination [Line Items]
Revenue		$ 108,742	$ 87,616
Net loss		(56,451)	$ (269,555)
SunPower Acquisition [Member]
Business Combination [Line Items]
Payment of aggregate consideration	$ 54,500
Net of cash acquired	$ 1,000
Revenue		(83,800)
Net loss		(6,500)
General and Administrative Expense [Member]
Business Combination [Line Items]
Acquisition cost		$ 7,200

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Organization

12 Months Ended

Dec. 29, 2024

Organization [Abstract]

Organization

(1) Organization

(a) Description of Business

Complete Solaria, Inc. (the “Company” or “Complete Solaria”) is a residential solar installer that offers storage and home energy solutions to customers in North America. The Company is headquartered in Fremont, California.

Complete Solar, Inc. (“Complete Solar”) was incorporated in Delaware on February 22, 2010. Through February 2022, the Company operated as a single legal entity as Complete Solar, Inc. In February 2022, the Company implemented a holding company reorganization (the “Reorganization”) in which the Company created and incorporated Complete Solar Holding Corporation (“Complete Solar Holdings”). As a result of the Reorganization, Complete Solar Holdings became the successor entity to Complete Solar, Inc. Subsequently, Complete Solar Holdings changed its name to Complete Solaria, Inc.

In October 2022, the Company entered into a business combination agreement, as amended on December 26, 2022 and January 17, 2023 (“Original Business Combination Agreement”) and as amended on May 26, 2023 (“Amended and Restated Business Combination Agreement”), with Jupiter Merger Sub I Corp., a Delaware corporation and a wholly owned subsidiary of Freedom Acquisition I Corp. (“FACT”) (“First Merger Sub”), Jupiter Merger Sub II LLC, a Delaware limited liability company and a wholly owned subsidiary of FACT (“Second Merger Sub”), Complete Solar Holding Corporation, a Delaware corporation, and The Solaria Corporation (“Solaria”), a Delaware corporation.

The transactions contemplated by the Amended and Restated Business Combination Agreement were consummated on July 18, 2023 (“Closing Date”). Following the consummation of the Merger on the Closing Date, FACT changed its name to “Complete Solaria, Inc.”

As part of the transactions contemplated by the Amended and Restated Business Combination Agreement, FACT affected a deregistration under the Cayman Islands Companies Act and a domestication under Section 388 of the Delaware’s General Corporation Law (the “DGCL” or “Domestication”). On the Closing Date, following the Domestication, First Merger Sub merged with and into Complete Solaria, with Complete Solaria surviving such merger as a wholly owned subsidiary of FACT (the “First Merger”), and immediately following the First Merger, Complete Solaria merged with and into Second Merger Sub, with Second Merger Sub surviving as a wholly owned subsidiary of FACT (the “Second Merger”), and Second Merger Sub changed its name to CS, LLC, and immediately following the Second Merger, Solaria merged with and into a newly formed Delaware limited liability company and wholly-owned subsidiary of FACT and changed its name to The Solaria Corporation LLC (“Third Merger Sub”), with Third Merger Sub surviving as a wholly-owned subsidiary of FACT (the “Additional Merger”, and together with the First Merger and the Second Merger, the “Mergers”).

In connection with the closing of the Mergers:

●

Each share of the Company’s capital stock, inclusive of shares converted from 2022 Convertible Notes, issued and outstanding immediately prior to the Closing (“Legacy Complete Solaria Capital Stock”) were cancelled and exchanged into an aggregate of 25,494,332 shares of Complete Solaria Common Stock.

●

In July 2023, (i) Meteora Special Opportunity Fund I, LP (“MSOF”), Meteora Capital Partners, LP (“MCP”) and Meteora Select Trading Opportunities Master, LP (“MSTO”) (with MSOF, MCP, and MSTO collectively as “Meteora”); (ii) Polar Multi-Strategy Master Fund (“Polar”), and (iii) Diametric True Alpha Market Neutral Master Fund, LP, Diametric True Alpha Enhanced Market Neutral Master Fund, LP, and Pinebridge Partners Master Fund, LP (collectively, “Sandia”) (together, the “FPA Funding PIPE Investors”) entered into separate subscription agreements (the “FPA Funding Amount PIPE Subscription Agreements”) pursuant to which, the FPA Funding PIPE Investors subscribed for on the Closing Date, an aggregate of 6,300,000 shares of FACT Class A Ordinary Shares, less, in the case of Meteora, 1,161,512 FACT Class A Ordinary Shares purchased by Meteora separately from third parties through a broker in the open market (“Recycled Shares”) in connection with the Forward Purchase Agreements (“FPAs”). Subsequent to the Closing Date, Complete Solaria entered into an additional FPA Funding PIPE Subscription Agreement with Meteora, to subscribe for and purchase, and Complete Solaria agreed to issue and sell, an aggregate of 420,000 shares of Complete Solaria Common Stock. The Company issued shares of Complete Solaria Common Stock underlying the FPAs as of the latter of the closing of the Mergers or execution of the FPAs.

●

All certain investors (the “PIPE Investors”) purchased from the Company an aggregate of 1,570,000 shares of Complete Solaria Common Stock (the “PIPE Shares”) for a purchase price of $10.00 per share, for aggregate gross proceeds of $15.7 million (the “PIPE Financing”), including $3.5 million that was funded prior to the Closing Date, pursuant to subscription agreements (the “Subscription Agreements”). At the time of the PIPE Financing, Complete Solaria issued an additional 60,000 shares to certain investors as an incentive to participate in the PIPE Financing.

●

On or around the Closing Date, pursuant to the New Money PIPE Subscription Agreements, certain investors affiliated with the New Money PIPE Subscription Agreements (“New Money PIPE Investors”) agreed to subscribe for and purchase, and Complete Solaria agreed to issue and sell to the New Money PIPE Investors an aggregate of 120,000 shares of Complete Solaria Common Stock for a purchase price of $5.00 per share, for aggregate gross proceeds of $0.6 million. Pursuant to its New Money PIPE Subscription Agreement, Complete Solaria issued an additional 60,000 shares of Complete Solaria Common Stock in consideration of certain services provided by it in the structuring of its FPA and the transactions described therein.

●

Subsequent to the Closing, Complete Solaria issued an additional 193,976 shares of Complete Solaria Common Stock to the sponsors for reimbursing sponsors’ transfer to certain counterparties and issued an additional 150,000 shares of Complete Solaria Common Stock to an FPA investor for services provided in connection with the Mergers.

●

In March 2023, holders of 23,256,504 of the originally issued 34,500,000 FACT Class A Ordinary shares exercised their rights to redeem those shares for cash, and immediately prior to the Closing there were 11,243,496 FACT Class A Ordinary Shares that remained outstanding. At the Closing, holders of 7,784,739 shares of Class A common stock of FACT exercised their rights to redeem those shares for cash, for an aggregate of approximately $82.2 million which was paid to such holders at Closing. The remaining FACT Class A Ordinary Share converted, on a one-for-one basis, into one share of Complete Solaria Common Stock.

●

Each issued and outstanding FACT Class B Ordinary Share converted, on a one-for-one basis, into one share of Complete Solaria Common Stock.

On August 18, 2023, the Company entered into a Non-Binding Letter of Intent to sell certain of Complete Solaria’s North American solar panel assets to Maxeon Solar Technologies, Ltd. (“Maxeon”).

On August 5, 2024, Complete Solaria entered into an Asset Purchase Agreement (the “APA”) among Complete Solaria, SunPower Corporation (“SunPower”) and SunPower’s direct and indirect subsidiaries (collectively, the “SunPower Debtors”) providing for the Company’s purchase of certain assets relating to the Blue Raven Solar business, New Homes Business and Non-Installing Dealer network previously operated by the SunPower Debtors (“SunPower Acquisition”). The APA was entered into in connection with a voluntary petition filed by SunPower under Chapter 11 of the United States Code, 11 U.S.C.§§ 101-1532. The sale by SunPower was approved on September 23, 2024, by the United States Bankruptcy Court for the District of Delaware. The Company completed the acquisition of the Acquired Assets (as defined in the APA) effective September 30, 2024, in exchange for consideration of $54.5 million, net of $1.0 cash acquired. The acquisition transactions under the APA are referred to herein as the “Acquisition,” and the assets and businesses acquired by the Company under the APA are referred to as the “SunPower Businesses.” Refer to Note 4 – Business Combination for a further discussion of the allocation of consideration transferred.

(b) Divestiture

In October 2023, the Company completed the sale of its solar panel business to Maxeon (“Divestiture”), pursuant to the terms of the Asset Purchase Agreement (the “Disposal Agreement”). The Company determined that the Divestiture represented a strategic shift in the Company’s business and qualified as a discontinued operation. Under the terms of the Disposal Agreement, Maxeon agreed to acquire certain assets and employees of Complete Solaria, for an aggregate purchase price of approximately $11.0 million consisting of 1,100,000 shares of Maxeon ordinary shares. In connection with the divestiture the Company recognized a net loss from discontinued operations of $2.0 million and $173.4 million in the fiscal years ended December 29, 2024 and December 31, 2023, respectively. The Company subsequently sold all of its Maxeon shares received in the Divestiture and recognized a loss upon sale of $4.2 million which is classified within continuing operations as Other income (expense), net within the Company’s consolidated statement of operations and comprehensive loss in the year ended December 31, 2023.

Accordingly, the results of operations and cash flows relating to Solaria were reflected as discontinued operations in the consolidated statements of operations and comprehensive loss and consolidated statements of cash flows for the fiscal years ended December 29, 2024 and December 31, 2023.

Components of amounts reflected in the consolidated statements of operations and comprehensive loss related to discontinued operations are presented in the table, as follows (in thousands):

	Fiscal Year Ended
	December 29,			December 31,
	2024			2023
Revenues	$	—		$	29,048
Cost of revenues		—			30,609
Gross loss		—			(1,561	)
Operating expenses:
Sales and marketing		—			6,855
General and administrative		2,007			17,472
Total operating expenses		2,007			24,327
Loss from discontinued operations		(2,007	)		(25,888	)
Other income, net		—			31
Loss from discontinued operations before income taxes		(2,007	)		(25,857	)
Income tax benefit		—			4
Loss from discontinued operations, net of tax		(2,007	)		(25,853	)
Impairment loss from discontinued operations		—			(147,505	)
Net loss from discontinued operations	$	(2,007	)	$	(173,358	)

(c) Liquidity and Going Concern

Since inception, the Company has incurred recurring losses and negative cash flows from operations. The Company incurred a net loss of $56.5 million during the fiscal year ended December 29, 2024 and had an accumulated deficit of $411.4 million and current debt of $1.5 million as of December 29, 2024. The Company had cash and cash equivalents, excluding restricted cash, of $13.4 million as of December 29, 2024. The Company believes that its operating losses and negative operating cash flows will continue into the foreseeable future. These conditions raise substantial doubt about the Company’s ability to continue as a going concern.

Management plans to obtain additional funding. Historically, the Company’s activities have been financed through private placements of equity securities, debt and proceeds from the Merger. If the Company is not able to secure adequate additional funding when needed, the Company will need to reevaluate its operating plan and may be forced to make reductions in spending, extend payment terms with suppliers, liquidate assets where possible, or suspend or curtail planned programs or cease operations entirely. These actions could materially impact the Company’s business, results of operations and future prospects. While the Company has been able to raise multiple rounds of financing, there can be no assurance that in the event the Company requires additional financing, such financing will be available on terms that are favorable, or at all. Failure to generate sufficient cash flows from operations, raise additional capital or reduce certain discretionary spending would have a material adverse effect on the Company’s ability to achieve its intended business objectives.

Therefore, there is substantial doubt about the Company’s ability to continue as a going concern within one year after the date that the consolidated financial statements are issued. The accompanying consolidated financial statements have been prepared assuming the Company will continue to operate as a going concern, which contemplates the realization of assets and settlement of liabilities in the normal course of business. They do not include any adjustments to reflect the possible future effects on the recoverability and classification of assets or the amounts and classifications of liabilities that may result from uncertainty related to its ability to continue as a going concern.

SAFE Agreements

12 Months Ended

Dec. 29, 2024

SAFE Agreements [Abstract]

SAFE Agreements

(16)

SAFE Agreements

First SAFE

On January 31, 2024, the Company entered into a Simple Agreement for Future Equity (“SAFE”) (the “First SAFE”) with the Rodgers Massey Freedom and Free Markets Charitable Trust (the “Purchaser”), a related party, affiliated with Thurman J. Rodgers, the Company’s Chief Executive Officer and a director, in connection with the Purchaser investing $1.5 million in the Company. The First SAFE did not accrue interest. The First SAFE was initially convertible into shares of the Company’s common stock, par value $0.0001 per share, upon the closing of a bona fide transaction or series of transactions with the principal purpose of raising capital, pursuant to which the Company would have issued and sold shares of its common stock at a fixed valuation (an “Equity Financing”), at a per share conversion price which was equal to the lower of (i) (a) $53.54 million divided by (b) the Company’s capitalization immediately prior to such Equity Financing (such conversion price, the “SAFE Price”), and (ii) 80% of the price per share of its common stock sold in the Equity Financing. If the Company consummated a change of control prior to the termination of the First SAFE, the Purchaser would have been automatically entitled to receive a portion of the proceeds of such liquidity event equal to the greater of (i) $1.5 million and (ii) the amount payable on the number of shares of common stock equal to (a) $1.5 million divided by (b)(1) $53.54 million divided by (2) the Company’s capitalization immediately prior to such liquidity event (the “Liquidity Price”), subject to certain adjustments as set forth in the First SAFE. The First SAFE was convertible into a maximum of 1,431,297 shares of the Company’s common stock, assuming a per share conversion price of $1.05, which is the product of (i) $1.31, the closing price per share of the Company’s common stock on January 31, 2024, multiplied by (ii) 80%.

On April 21, 2024, the Company entered into an amendment (“First SAFE Amendment”) that converted the First SAFE investment of $1.5 million into 4,166,667 shares of the Company’s common stock based on a conversion price of $0.36 per share, defined in the First SAFE Amendment as the product of (i) $0.45, the closing price of the Company’s common stock on April 19, 2024, multiplied by (ii) 80%. Upon conversion, the Company recorded a debit to SAFE Agreement of $1.5 million, a credit to Additional paid-in-capital of $1.9 million and recognized expense of $0.4 million within Other income (expense), net in its consolidated statement of operations for the fiscal year ended December 29, 2024.

Second SAFE

On February 15, 2024, the Company entered into a second SAFE (the “Second SAFE”) with the Purchaser, in connection with the Purchaser investing $3.5 million in the Company. The Second SAFE did not accrue interest. The Second SAFE was initially convertible into shares of the Company’s common stock upon the initial closing of an Equity Financing at a per share conversion price which was equal to the lower of (i) the Second SAFE Price, and (ii) 80% of the price per share of the Company’s common stock sold in the Equity Financing. If the Company consummated a change of control prior to the termination of the Second SAFE, the Purchaser would have been automatically entitled to receive an amount equal to the greater of (i) $3.5 million and (ii) the amount payable on the number of shares of the Company’s common stock equal to $3.5 million divided by the Liquidity Price, subject to certain adjustments as set forth in the Second SAFE. The Second SAFE was convertible into a maximum of 3,707,627 shares of the Company’s common stock, assuming a per share conversion price of $0.94, which is the product of (i) $1.18, the closing per share price of its common stock on February 15, 2024, (ii) 80%.

On April 21, 2024, the Company entered into an amendment (“Second SAFE Amendment”) that converted the Second SAFE investment of $3.5 million into 9,722,222 shares of the Company’s common stock based on a conversion price of $0.36 per share, defined in the Second SAFE Amendment as the product of (i) $0.45, the closing price of the Company’s common stock on April 19, 2024, multiplied by (ii) 80%. Upon conversion, the Company recorded a debit to SAFE Agreement of $3.5 million, a credit to Additional paid-in-capital of $4.4 million and recognized expense of $0.9 million within Other income (expense), net in its consolidated statement of operations for the fiscal year ended December 29, 2024.

Third SAFE

On May 13, 2024, the Company entered into a third SAFE (the “Third SAFE”) with the Purchaser, in connection with the Purchaser investing $1.0 million in the Company. The Third SAFE is convertible into shares of the Company’s common stock upon the initial closing of a bona fide transaction or series of transactions with the principal purpose of raising capital, pursuant to which the Company issues and sells shares of its common stock in an Equity Financing, at a per share conversion price which is equal to 50% of the price per share of the Company’s common stock sold in the Equity Financing. If the Company consummates a change of control prior to the termination of the Third SAFE, the Purchaser will be automatically entitled to receive a portion of the proceeds of such liquidity event equal to $1.0 million, subject to certain adjustments as set forth in the Third SAFE. The Third SAFE is convertible into a maximum of 2,750,000 shares of the Company’s common stock, assuming a per share conversion price of $0.275, which is the product of (i) $0.55, the closing price of the Company’s common stock on May 13, 2024, multiplied by (ii) 50%. Given that the SAFE could be settled in cash or a variable number of shares, the Company has accounted for the instrument as a liability at its fair value.

As of December 29, 2024, the Company estimated the fair value of the Third SAFE at $0.4 million based upon the assumptions disclosed in Note 5 – Fair Value Measurements.

Other Income (Expense), Net (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 29, 2024	Dec. 31, 2023
Other Income (Expense), Net [Line Items]
Other expense		$ 30.7
Mergers [Member]
Other Income (Expense), Net [Line Items]
Other expense		0.7
Related party convertible notes and SAFEs [Member]
Other Income (Expense), Net [Line Items]
Other income	$ 0.1	9.1
Related Party [Member]
Other Income (Expense), Net [Line Items]
Issuance of a derivative liability	3.0
Fair value of derivative liabilities	$ 0.3
Forward Purchase Agreements [Member]
Other Income (Expense), Net [Line Items]
Other income		0.4
Forward Purchase Agreements [Member] \| Related Party [Member]
Other Income (Expense), Net [Line Items]
Other expense		$ 30.7

Prepaid Expenses and Other Current Assets [Abstract]

Prepaid Expenses and Other Current Assets

12 Months Ended

Dec. 29, 2024

Prepaid Expenses and Other Current Assets

(7) Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets consist of the following (in thousands):

	As of
	December 29,		December 31,
	2024		2023
Inventory deposits	$	3,407	$	616
Deferred costs		3,759		—
Prepaid sales commissions		—		4,185
Other		1,040		1,016
Total prepaid expenses and other current assets	$	8,206	$	5,817

Warrants

12 Months Ended

Dec. 29, 2024

Warrants [Abstract]

Warrants

(14) Warrants

Liability-classified warrants

Liability classified warrants are as follows (in thousands):

	As of
	December 29,		December 31,
	2024		2023
Carlyle Warrant	$	—	$	9,515
Replacement warrants		—		1,310
Public warrants		862		167
Private placements warrants		627		122
Working capital warrants		72		13
Total liability classified warrants	$	1,561	$	11,127

Series D-7 Warrants (Converted to Common Stock Warrants “Replacement Warrants”)

In November 2022, the Company issued warrants to purchase 656,630 shares of Series D-7 preferred stock (the “Series D-7 warrants”) in conjunction with the Business Combination. The warrant contained two tranches. The first tranche of 518,752 shares of Series D-7 preferred stock was exercisable at an exercise price of $2.50 per share upon consummation of a merger transaction, or at an exercise price of $2.04 per share upon remaining private and had an expiration date of April 2024. The second tranche of 137,878 shares of Series D-7 preferred stock was exercisable at an exercise price of $5.00 per share upon consummation of a merger transaction, or at an exercise price of $4.09 per share upon remaining private and had an expiration date of April 2024. The fair value of the Series D-7 warrants was $2.4 million as of July 18, 2023 when the warrants were reclassified from redeemable convertible preferred stock warrant liability to additional paid-in capital, as the exercise price of the warrants was fixed at $2.50 per share of Complete Solaria Common Stock for the first tranche and $5.00 per share of Complete Solaria Common Stock for the second tranche upon the closing of the Mergers.

In October 2023, the Company entered into an Assignment and Acceptance Agreement (“Assignment Agreement”), (refer to Note 15 – Borrowings and Derivative Liabilities). In connection with the Assignment Agreement, the Company also entered into the First Amendment to Warrant to Purchase Stock Agreements with the holders of the Series D-7 warrants. Pursuant to the terms of the agreement, the warrants to purchase 1,376,414 shares of Series D-7 preferred stock converted into warrants to purchase 656,630 shares of common stock (the “Replacement Warrants”). As a result of the warrant amendment, the Company reclassified the Replacement Warrants from equity to liability. The Replacement Warrants were remeasured to fair value on the amendment effective date and the Company recorded subsequent changes in fair value within Other income (expense), net in its consolidated statements of operations and comprehensive loss.

The Replacement Warrants expired in April 2024 and the Company released the $1.3 million liability recognized in connection with the warranty liability. The $1.3 million of income was classified in Other income (expense), net within its consolidated statements of operations and comprehensive loss.

Public, Private Placement, and Working Capital Warrants

In conjunction with the Mergers, Complete Solaria, as accounting acquirer, was deemed to assume 6,266,667 warrants to purchase FACT Class A Ordinary Shares that were held by the sponsor at an exercise price of $11.50 (“Private Placement Warrants”) and 8,625,000 warrants to purchase FACT’s shareholders FACT Class A Ordinary Shares at an exercise price of $11.50 (“Public Warrants”). Subsequent to the Mergers, the Private Placement Warrants and Public Warrants are exercisable for shares of Complete Solaria Common Stock and meet liability classification requirements since the warrants may be required to be settled in cash under a tender offer. In addition, Private Placement Warrants are potentially subject to a different settlement amount as a result of being held by the Sponsor which precludes the Private Placement Warrants from being considered indexed to the entity’s own stock. Therefore, these warrants are classified as liabilities on the consolidated balance sheets.

The fair values of the warrant liabilities were $1.5 million and $0.3 million as of December 29, 2024, and December 31, 2023, respectively. The Company recorded a $1.2 million and $6.4 million increase in the fair value of these warrants for the fiscal years ended December 29, 2024 and December 31, 2023, respectively. These changes were recorded in Other income (expense), net in the Company’s consolidated statements of operations and comprehensive loss.

Additionally, at the closing of the Mergers, the Company issued 716,668 Working Capital warrants, which have identical terms as the Private Placement Warrants to the sponsor in satisfaction of certain liabilities of FACT. The warrants were fair valued at $0.3 million upon the closing of the Mergers, which was recorded in warrant liability on the Company’s consolidated balance sheets. As of December 29, 2024 and December 31, 2023, the Working Capital warrants had a fair value of $0.08 million and $0.01 million, respectively and the Company recorded the change in fair value of less than $0.07 million and $0.1 million in Other income (expense), net within the Company’s consolidated statements of operations and comprehensive loss in the years ended December 29, 2024 and December 31, 2023, respectively.

Previous Liability Classified Warrant Now Classified as Equity

Carlyle Warrant

In February 2022, as part of a debt financing from Carlyle (“CS Solis Debt”) (refer to Note 15 – Borrowings and Derivative Liabilities), the Company issued a warrant to Carlyle to purchase 2,886,952 shares of common stock (“Carlyle Warrant”). The warrant contained two tranches, the first of which was immediately exercisable for 1,995,879 shares of Legacy Complete Solaria common stock. The second tranche, which was determined to be a separate unit of account, expired on December 31, 2022 prior to becoming exercisable. At issuance, the relative fair value of the warrant was determined to be $3.4 million using the Black-Scholes model and was initially recorded within additional paid-in capital as it met the conditions for equity classification. The Carlyle Warrant has an exercise price of $0.01 per share.

In July 2023, and in connection with the closing of the Mergers, the Carlyle debt and warrants were modified. Based on the exchange ratio included in the Mergers, the 1,995,879 outstanding warrants to purchase Legacy Complete Solaria Common Stock prior to modification were exchanged into warrants to purchase 1,995,879 shares of Complete Solaria Common Stock. As part of the modification, the warrant, which expires on July 18, 2030, provides Carlyle with the right to purchase shares of Complete Solaria Common Stock based on (a) the greater of (i) 1,995,879 shares and (ii) the number of shares equal to 2.795% of Complete Solaria’s issued and outstanding shares of common stock, on a fully-diluted basis; plus (b) on and after the date that is ten (10) days after the date of the agreement, an additional 350,000 shares; plus (c) on and after the date that is thirty (30) days after the date of the agreement, if the original investment amount has not been repaid, an additional 150,000 shares; plus (d) on and after the date that is ninety (90) days after the date of the agreement, if the original investment amount has not been repaid, an additional 250,000 shares, in each case, of Complete Solaria Common Stock at a price of $0.01 per share. Of the additional warrants that become exercisable after the modification, the tranches of 350,000 warrants vesting ten days after the date of the agreement and 150,000 warrants vesting thirty days after the date of the agreement were exercisable as of October 31, 2023.

In December 2023, Carlyle was issued an additional warrant to purchase an additional 2,190,604 shares of the Company’s common stock related to an anti-dilution provision within the CS Solis Debt that provides for such additional warrants under such circumstances as provided within the CS Solis Debt.

The modification of the warrant resulted in the reclassification of previously equity-classified warrants to liability classification, which was accounted for in accordance with ASC 815 and ASC 718, Compensation – Stock Compensation. The fair value of the warrant liability was determined based on its intrinsic value, given a nominal exercise price. At issuance, the relative fair value of the warrant was determined to be $20.4 million using the Black-Scholes model with the following weighted average assumptions: expected term of 7 years; expected volatility of 77.0%; risk-free interest rate of 3.9%; and no dividend yield. The Company recorded the fair value of the modified warrants as a warrant liability of $20.4 million, the pre-modification fair value of the warrants as a reduction to additional paid-in capital of $10.9 million and an expense of $9.5 million to Other income (expense), net in the fiscal year ended December 31, 2023, equal to the incremental value of the warrants upon the modification. As of December 31, 2023, the fair value of the warrant was $9.5 million, and the Company recorded an expense of $14.4 million as other income (expense), net on the consolidated statement of operations and comprehensive loss.

On July 1, 2024, in connection with the Exchange Agreement (as defined in Note 15 – Borrowings and Derivative Liabilities), the Carlyle Warrant was modified, and the modification fixed the number of shares of the Company’s common stock that may be issued upon exercise of the Carlyle Warrant at 4,936,483. At the modification date, the Carlyle Warrant had a fair value of $7.3 million. At the modification date, the Company recognized $0.7 million of expense related to the remeasurement of the liability which was classified within “Gain on Troubled Debt Restructuring” within the Company’s consolidated statement of operations and comprehensive loss. The modification of the warrant resulted in the reclassification of the previously liability-classified warrant to equity classification, resulting in an increase to additional paid-in capital of $7.3 million, a reduction in the warrant liability of $7.3 million.

The Company recorded income of $2.9 million and $14.4 million within Other income (expense), net in its consolidated statements of operations and comprehensive loss for the fiscal years ended December 29, 2024 and December 31, 2023, respectively, related to the Carlyle Warrant. The warrant remains outstanding as of December 29, 2024.

Equity Classified Warrants

In February 2016, the Company issued a warrant to purchase 5,054 shares of Series B preferred stock (the “Series B warrant”) in connection with a 2016 credit facility. The Series B warrant was immediately exercisable at an exercise price of $4.30 per share and has an expiration date of February 2026. The relative fair value of the Series B warrant at issuance was recorded as a debt issuance cost within other noncurrent liabilities upon issuance. The fair value of the Series B warrant was less than $0.1 million as of July 18, 2023, when the Series B warrant was reclassified from warrant liability to additional paid-in capital, upon the warrant becoming exercisable into shares of Complete Solaria common stock upon the close of the Mergers. Prior to its reclassification during 2023, changes in the fair value of the liability-classified warrants were recorded in Other income (expense), net in the Company’s consolidated statement of operations and comprehensive loss for the fiscal year ended December 31, 2023. The Series B warrant is not remeasured in future periods as it meets the conditions for equity classification. The warrants remain outstanding as of December 29, 2024.

In July 2016, the Company issued a warrant to purchase 148,477 shares of Series C preferred stock (the “Series C warrant”) in connection with the Series C financing. The Series C warrant agreement also provided for an additional number of Series C shares calculated on a monthly basis commencing on June 2016 based on the principal balance outstanding of the notes payable outstanding. The maximum number of shares exercisable under the Series C warrant agreement was 482,969 shares of Series C preferred stock. The Series C Warrant was immediately exercisable at an exercise price of $1.00 per share and has an expiration date of July 2026. The fair value of the Series C Warrant was $2.3 million as of July 18, 2023, when the Series C warrant was reclassified from redeemable convertible preferred stock warrant liability to additional paid-in capital, as the warrant became exercisable into shares of Complete Solaria common stock upon the close of the Mergers. The Series C warrant is not remeasured in future periods as it meets the conditions for equity classification. The warrants remain outstanding as of December 29, 2024.

In January 2020, the Company issued a warrant to purchase 173,067 shares of common stock in conjunction with the Series C-1 preferred stock financing. The warrant was immediately exercisable at an exercise price of $0.01 per share and has an expiration date of January 2030. The warrant remains outstanding as of December 29, 2024. At issuance, the relative fair value of the warrant was determined to be $0.1 million using the Black-Scholes. The fair value of the warrant was recorded within additional paid-in capital on the Company’s consolidated balance sheets. The warrant is not remeasured in future periods as it meets the conditions for equity classification.

SVB Common Stock Warrants

In May and August 2021, the Company issued warrants to purchase 2,473 and 2,525 shares of common stock, respectively, in conjunction with the Fifth and Sixth Amendments to the Loan and Security Agreement (“Loan Agreement”) with Silicon Valley Bank (“SVB”). These warrants are immediately exercisable at exercise prices of $0.38 and $0.62 per share, respectively, and have expiration dates in 2033. The warrants remain outstanding as of December 29, 2024. The fair value of the warrant was recorded within additional paid-in-capital on the accompanying consolidated balance sheets. The warrants are not remeasured in future periods as they meet the conditions for equity classification.

Promissory Note Common Stock Warrants

In October 2021, the Company issued a warrant to purchase 50,000 shares of the Company’s common stock in connection with the issuance of a short-term promissory note. As of December 29, 2024, the warrant for 24,148 shares of the Company’s common stock remains unexercised. The warrant was immediately exercisable at an exercise price of $0.01 per share and has an expiration date of October 2031. The warrant remains outstanding as of December 29, 2024. The fair value of the warrant was recorded within additional paid-in capital on the Company’s consolidated balance sheets. The warrant is not remeasured in future periods as it meets the conditions for equity classification.

July 2023 Common Stock Warrants

In July 2023, the Company issued a warrant to a third-party service provider to purchase 38,981 shares of the Company’s common stock in exchange for services provided in obtaining financing at the Closing of the Mergers. The warrant was immediately exercisable at a price of $0.01 per share and has an expiration date of July 2028. At issuance, the fair value of the warrant was determined to be $0.2 million, based on the intrinsic value of the warrant and the $0.01 per share exercise price. As the warrant is accounted for as an equity issuance cost, the fair value of the warrant was recorded within additional paid-in capital on the Company’s consolidated balance sheet. The warrant is not remeasured in future periods as it meets the conditions for equity classification.

Warrant Consideration

In July 2023, in connection with the Mergers, the Company issued 6,266,572 warrants to purchase Complete Solaria Common Stock to holders of Legacy Complete Solaria Redeemable Convertible Preferred Stock, Legacy Complete Solaria Common Stock. The exercise price of the common stock warrants is $11.50 per share and the warrants expire 10 years from the date of the Mergers. The warrant consideration was issued as part of the close of the Mergers and was recorded within additional paid-in capital, net of the issuance costs of the Mergers. As of December 29, 2024, this warrant remains outstanding. The warrant is not remeasured in future periods as it meets the conditions for equity classification.

Ayna Warrant

On June 17, 2024, a warrant to purchase shares of the Company’s common stock (“Ayna Warrant”) was issued to Ayna.AI LLC (“Ayna”) for the purchase of 6,000,000 shares of the Company’s common stock at an exercise price per share of $0.01, subject to the provisions and upon the terms and conditions set forth in the Ayna Warrant. The Ayna Warrant expires on June 17, 2029. The issuance of the Ayna Warrant by the Company to Ayna is in satisfaction of the compensation for services provided to the Company by Ayna under the terms of a statement of work (“Ayna SOW”), signed May 21, 2024 (and effective as of March 12, 2024), as incorporated into a master services agreement dated March 12, 2024. Under the Ayna SOW, Ayna provides services in connection with the anticipated return of the Company to cash-flow positive performance. The Ayna Warrant became fully exercisable for the 6,000,000 shares on September 9, 2024 and Anya exercised the Ayna Warrant in full for cash in January 2025.

In lieu of exercising the Ayna Warrant for cash, Ayna may from time to time convert the Ayna Warrant, in whole or in part, into a number of shares of the Company’s common stock determined by dividing (a) the aggregate fair market value of the shares of the Company’s common stock or other securities otherwise issuable upon exercise of the Ayna Warrant minus the aggregate warrant price of such shares of the Company’s common stock by (b) the fair market value (“Ayna Warrant FMV”) of one share of the Company’s common stock.

If the Company’s shares of common stock are traded regularly in a public market, the Ayna Warrant FMV shall be the weighted average price for the 30 trading days ending on the trading day immediately before Ayna delivers its notice of exercise to the Company. If the Company’s shares of common stock are not regularly traded in a public market, the Company’s Board of Directors shall determine that the Ayna Warrant FMV in its reasonable good faith judgment. The foregoing notwithstanding, if Ayna advises the Company’s Board of Directors in writing that Ayna disagrees with such determination, then the Company and Ayna shall promptly agree upon a reputable investment banking firm or a third party independent appraiser to undertake such valuation. If the valuation of such investment banking firm is greater than that determined by the Board of Directors, then all fees and expenses of such investment banking firm shall be paid by the Company. In all other circumstances, such fee and expenses shall be paid by Ayna.

At issuance, the fair value of the Ayna Warrant was determined to be $9.2 million, based on the intrinsic value of the Ayna Warrant and the $0.01 per share exercise price. As the Ayna Warrant is accounted for as stock-based compensation under ASC 718, the Ayna Warrant is recorded within additional paid-in capital on the consolidated balance sheets. The Ayna Warrant is not remeasured in future periods as it meets the conditions for equity classification. As the Ayna statement of work period is different than the date of the warrant agreement, the differences in dates cause an accrued expense for services rendered by Ayna. The Company recognized expenses incurred to date of $9.2 million for the fiscal year ended December 29, 2024, within General and administrative expenses on the Company’s consolidated statement of operations. The full amount of the Ayna Warrant, $9.2 million, was recorded within additional paid-in-capital as of December 29, 2024.

Cantor Warrant

In July 2024, the Company issued a warrant (“Cantor Warrant”) to a third-party service provider to purchase 3,066,141 shares of the Company’s common stock in exchange for services provided in the issuance of the July 2024 Notes (refer to Note 15 – Borrowings and Derivative Liabilities). The Cantor Warrant was immediately exercisable at a price of $1.68 per share and has an expiration date in July 2029. At issuance, the fair value of the Cantor Warrant was determined to be $1.4 million, of which $0.9 million was recorded as a debt discount and $0.5 million was attributable to the convertible notes issued in the Exchange Agreement and reduced the gain on the troubled debt restructuring (refer to Note 15 – Borrowings and Derivative Liabilities). The fair value of this warrant was derived using the Black-Scholes model with the following assumptions: expected volatility of 55%; risk-free interest rate of 4.2%; expected term of 5 years; and no dividend yield. The fair value of this warrant was recorded within additional paid-in capital on the Company’s consolidated balance sheets and is not remeasured in future periods as it meets the conditions for equity classification.

Fair Value Measurements - Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis (Details) - Fair Value, Nonrecurring [Member] $ in Thousands	12 Months Ended
	Dec. 29, 2024 USD ($)
Financial Liabilities
Carrying value	$ 48,709
Estimated fair value	140,541
Financial Liabilities	140,541
Fair Value, Inputs, Level 1 [Member]
Financial Liabilities
Financial Liabilities
Fair Value, Inputs, Level 2 [Member]
Financial Liabilities
Financial Liabilities
Fair Value, Inputs, Level 3 [Member]
Financial Liabilities
Financial Liabilities	140,541
July 2024 Notes [Member]
Financial Liabilities
Carrying value	17,965
Estimated fair value	21,390
Financial Liabilities	21,390
July 2024 Notes [Member] \| Fair Value, Inputs, Level 1 [Member]
Financial Liabilities
Financial Liabilities
July 2024 Notes [Member] \| Fair Value, Inputs, Level 2 [Member]
Financial Liabilities
Financial Liabilities
July 2024 Notes [Member] \| Fair Value, Inputs, Level 3 [Member]
Financial Liabilities
Financial Liabilities	21,390
July 2024 Notes - related parties [Member]
Financial Liabilities
Carrying value	24,632
Estimated fair value	33,323
Financial Liabilities	33,323
July 2024 Notes - related parties [Member] \| Fair Value, Inputs, Level 1 [Member]
Financial Liabilities
Financial Liabilities
July 2024 Notes - related parties [Member] \| Fair Value, Inputs, Level 2 [Member]
Financial Liabilities
Financial Liabilities
July 2024 Notes - related parties [Member] \| Fair Value, Inputs, Level 3 [Member]
Financial Liabilities
Financial Liabilities	33,323
September 2024 Notes [Member]
Financial Liabilities
Carrying value	5,636
Estimated fair value	77,245
Financial Liabilities	77,245
September 2024 Notes [Member] \| Fair Value, Inputs, Level 1 [Member]
Financial Liabilities
Financial Liabilities
September 2024 Notes [Member] \| Fair Value, Inputs, Level 2 [Member]
Financial Liabilities
Financial Liabilities
September 2024 Notes [Member] \| Fair Value, Inputs, Level 3 [Member]
Financial Liabilities
Financial Liabilities	77,245
September 2024 Notes - related parties [Member]
Financial Liabilities
Carrying value	476
Estimated fair value	8,583
Financial Liabilities	8,583
September 2024 Notes - related parties [Member] \| Fair Value, Inputs, Level 1 [Member]
Financial Liabilities
Financial Liabilities
September 2024 Notes - related parties [Member] \| Fair Value, Inputs, Level 2 [Member]
Financial Liabilities
Financial Liabilities
September 2024 Notes - related parties [Member] \| Fair Value, Inputs, Level 3 [Member]
Financial Liabilities
Financial Liabilities	$ 8,583

Related Party Transactions (Details) - Related Party [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 29, 2024	Dec. 31, 2023
Related Party Transactions [Line Items]
Aggregate purchase price		$ 5.0
SameDay Solar [Member]
Related Party Transactions [Line Items]
Revenue	$ 1.6
Cost of revenue	0.6
Commission expense	$ 1.2

The aggregate cost of goods produced and sold and services rendered during the reporting period.

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