10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

T QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 29, 2015

OR

o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from ______________ to ______________

Commission file number 001-34166

SunPower Corporation

(Exact Name of Registrant as Specified in Its Charter)

Delaware	94-3008969
(State or Other Jurisdiction of Incorporation or Organization)	(I.R.S. Employer Identification No.)

77 Rio Robles, San Jose, California 95134

(Address of Principal Executive Offices and Zip Code)

(408) 240-5500

(Registrant's Telephone Number, Including Area Code)

_________________________________________

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Sections 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes  T    No  o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes  T    No  o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer x	Accelerated filer o	Non-accelerated filer o	Smaller reporting company o
		(Do not check if a smaller reporting company)

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).  Yes  o    No  T

The total number of outstanding shares of the registrant’s common stock as of April 24, 2015 was 133,269,858.

d

1

TABLE OF CONTENTS
		Page
Part I. FINANCIAL INFORMATION
Item 1.	Financial Statements (unaudited)	3
	Consolidated Balance Sheets	3
	Consolidated Statements of Operations	4
	Consolidated Statements of Comprehensive Income (Loss)	5
	Consolidated Statements of Equity	6
	Consolidated Statements of Cash Flows	7
	Notes to Consolidated Financial Statements	8
Item 2.	Management's Discussion and Analysis of Financial Condition and Results of Operations	38
Item 3.	Quantitative and Qualitative Disclosure About Market Risk	54
Item 4.	Controls and Procedures	56
Part II. OTHER INFORMATION
Item 1.	Legal Proceedings	56
Item IA.	Risk Factors	56
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	58
Item 6.	Exhibits	59
Signatures		60
Index to Exhibits		61

2

PART I. FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS

SunPower Corporation

Consolidated Balance Sheets

(In thousands, except share data)

(unaudited)

	March 29, 2015			December 28, 2014
Assets
Current assets:
Cash and cash equivalents	$	601,573		$	956,175
Restricted cash and cash equivalents, current portion	27,507			18,541
Accounts receivable, net1	467,868			504,316
Costs and estimated earnings in excess of billings1	46,117			187,087
Inventories	302,587			208,573
Advances to suppliers, current portion	90,270			98,129
Project assets - plants and land, current portion	179,650			101,181
Prepaid expenses and other current assets1	345,825			328,845
Total current assets	2,061,397			2,402,847
Restricted cash and cash equivalents, net of current portion	34,383			24,520
Restricted long-term marketable securities	7,027			7,158
Property, plant and equipment, net	594,466			585,344
Solar power systems leased and to be leased, net	427,187			390,913
Project assets - plants and land, net of current portion	29,394			15,475
Advances to suppliers, net of current portion	305,484			311,528
Long-term financing receivables, net	298,785			269,587
Goodwill and other intangible assets, net	38,008			37,981
Other long-term assets1	307,010			300,229
Total assets	$	4,103,141		$	4,345,582
Liabilities and Equity
Current liabilities:
Accounts payable1	$	432,568		$	419,919
Accrued liabilities	269,491			331,034
Billings in excess of costs and estimated earnings	89,061			83,440
Short-term debt	18,222			18,105
Convertible debt, current portion	—			245,325
Customer advances, current portion1	27,367			31,788
Total current liabilities	836,709			1,129,611
Long-term debt	296,276			214,181
Convertible debt, net of current portion1	693,591			692,955
Customer advances, net of current portion1	143,218			148,896
Other long-term liabilities	542,973			555,344
Total liabilities	2,512,767			2,740,987
Commitments and contingencies (Note 8)
Redeemable noncontrolling interests in subsidiaries	29,306			28,566
Equity:
Preferred stock, $0.001 par value; 10,000,000 shares authorized; none issued and outstanding as of both March 29, 2015 and December 28, 2014	—			—
Common stock, $0.001 par value, 367,500,000 shares authorized; 141,592,715 shares issued, and 133,254,173 outstanding as of March 29, 2015; 367,500,000 shares authorized; 138,616,252 shares issued, and 131,466,777 outstanding as of December 28, 2014;	133			131
Additional paid-in capital	2,235,562			2,219,581
Accumulated deficit	(570,179		)	(560,598		)
Accumulated other comprehensive loss	(19,535		)	(13,455		)
Treasury stock, at cost; 8,338,542 shares of common stock as of March 29, 2015; 7,149,475 shares of common stock as of December 28, 2014	(150,189		)	(111,485		)
Total stockholders' equity	1,495,792			1,534,174
Noncontrolling interests in subsidiaries	65,276			41,855
Total equity	1,561,068			1,576,029
Total liabilities and equity	$	4,103,141		$	4,345,582

¹  The Company has related-party balances for transactions made with Total and its affiliates as well as unconsolidated entities in which the Company has a direct equity investment. These related-party balances are recorded within the "Accounts Receivable, net," "Costs and estimated earnings in excess of billings," "Prepaid expenses and other current assets," "Other long-term assets," "Accounts payable," "Customer advances, current portion," "Convertible debt, net of current portion," and "Customer advances, net of current portion" financial statement line items in the Consolidated Balance Sheets (see Note 2, Note 6, Note 9, Note 10, and Note 11).

The accompanying notes are an integral part of these consolidated financial statements.

3

SunPower Corporation

Consolidated Statements of Operations

(In thousands, except per share data)

(unaudited)

	Three Months Ended
	March 29, 2015			March 30, 2014
Revenue	$	440,871		$	692,422
Cost of revenue	350,053			529,433
Gross margin	90,818			162,989
Operating expenses:
Research and development	21,168			16,746
Sales, general and administrative	77,214			73,928
Restructuring charges	3,581			(461		)
Total operating expenses	101,963			90,213
Operating income (loss)	(11,145		)	72,776
Other income (expense), net:
Interest income	556			318
Interest expense	(15,681		)	(19,592		)
Other, net	(2,620		)	1,369
Other expense, net	(17,745		)	(17,905		)
Income (loss) before income taxes and equity in earnings of unconsolidated investees	(28,890		)	54,871
Provision for income taxes	(2,351		)	(13,620		)
Equity in earnings of unconsolidated investees	2,191			1,783
Net income (loss)	(29,050		)	43,034
Net loss attributable to noncontrolling interests and redeemable noncontrolling interests	19,469			22,010
Net income (loss) attributable to stockholders	$	(9,581	)	$	65,044
Net income (loss) per share attributable to stockholders:
Basic	$	(0.07	)	$	0.53
Diluted	$	(0.07	)	$	0.42
Weighted-average shares:
Basic	132,033			122,196
Diluted	132,033			160,434

The accompanying notes are an integral part of these consolidated financial statements.

4

SunPower Corporation

Consolidated Statements of Comprehensive Income (Loss)

(In thousands)

(unaudited)

	Three Months Ended
	March 29, 2015			March 30, 2014
Net income (loss)	$	(29,050	)	$	43,034
Components of comprehensive income (loss):
Translation adjustment	(2,003		)	274
Net unrealized gain (loss) on derivatives (Note 11)	(4,188		)	385
Income taxes	111			(110		)
Net change in accumulated other comprehensive gain (loss)	(6,080		)	549
Total comprehensive income (loss)	(35,130		)	43,583
Comprehensive loss attributable to noncontrolling interests and redeemable noncontrolling interests	19,469			22,010
Comprehensive income (loss) attributable to stockholders	$	(15,661	)	$	65,593

The accompanying notes are an integral part of these consolidated financial statements.

5

SunPower Corporation

Consolidated Statements of Equity

(In thousands)

(unaudited)

				Common Stock
	Redeemable Noncontrolling Interests			Shares		Value		Additional Paid-in Capital			Treasury Stock			Accumulated Other Comprehensive Income (Loss)			Retained Earnings (Accumulated Deficit)			Total Stockholders’ Equity			Noncontrolling Interests			Total Equity
Balances at December 28, 2014	$	28,566		131,466		$	131	$	2,219,581		$	(111,485	)	$	(13,455	)	$	(560,598	)	$	1,534,174		$	41,855		$	1,576,029
Net income (loss)	869			—		—		—			—			—			(9,581		)	(9,581		)	(20,338		)	(29,919		)
Other comprehensive income (loss)	—			—		—		—			—			(6,080		)	—			(6,080		)	—			(6,080		)
Issuance of common stock upon exercise of options	—			1		—		3			—			—			—			3			—			3
Issuance of restricted stock to employees, net of cancellations	—			2,976		2		(2		)	—			—			—			—			—			—
Stock-based compensation expense	—			—		—		14,504			—			—			—			14,504			—			14,504
Tax benefit from convertible debt interest deduction	—			—		—		904			—			—			—			904			—			904
Tax benefit from stock-based compensation	—			—		—		572			—			—			—			572			—			572
Contributions from noncontrolling interests	431			—		—		—			—			—			—			—			45,459			45,459
Distributions to noncontrolling interests	(560		)	—		—		—			—			—			—			—			(1,700		)	(1,700		)
Purchases of treasury stock				(1,189	)	—		—			(38,704		)	—			—			(38,704		)	—			(38,704		)
Balances at March 29, 2015	$	29,306		133,254		$	133	$	2,235,562		$	(150,189	)	$	(19,535	)	$	(570,179	)	$	1,495,792		$	65,276		$	1,561,068

The accompanying notes are an integral part of these consolidated financial statements.

6

SunPower Corporation

Consolidated Statements of Cash Flows

(In thousands)

(unaudited)

	Three Months Ended
	March 29, 2015			March 30, 2014
Cash flows from operating activities:
Net income (loss)	$	(29,050	)	$	43,034
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	28,563			25,371
Stock-based compensation	13,546			14,867
Non-cash interest expense	4,680			5,170
Equity in earnings of unconsolidated investees	(2,191		)	(1,783		)
Excess tax benefit from stock-based compensation	(572		)	—
Deferred income taxes and other tax liabilities	(5,078		)	17,985
Other, net	855			206
Changes in operating assets and liabilities, net of effect of acquisition:
Accounts receivable	32,735			93,574
Costs and estimated earnings in excess of billings	140,970			14,009
Inventories	(108,072		)	4,043
Project assets	(93,150		)	22,491
Prepaid expenses and other assets	(25,090		)	(12,191		)
Long-term financing receivables, net	(29,198		)	(32,333		)
Advances to suppliers	13,903			(7,263		)
Accounts payable and other accrued liabilities	(51,781		)	(16,972		)
Billings in excess of costs and estimated earnings	5,621			(117,009		)
Customer advances	(10,099		)	(2,727		)
Net cash provided by (used in) operating activities	(113,408		)	50,472
Cash flows from investing activities:
Increase in restricted cash and cash equivalents	(18,828		)	(2,293		)
Purchases of property, plant and equipment	(24,564		)	(8,800		)
Cash paid for solar power systems, leased and to be leased	(19,403		)	(14,989		)
Cash paid for investments in unconsolidated investees	—			(5,013		)
Cash paid for intangibles	(526		)	—
Net cash used in investing activities	(63,321		)	(31,095		)
Cash flows from financing activities:
Cash paid for repurchase of convertible debt	(324,273		)	(1		)
Proceeds from settlement of 4.75% Bond Hedge	—			68,842
Payments to settle 4.75% Warrants	—			(81,077		)
Proceeds from settlement of 4.50% Bond Hedge	74,628			—
Proceeds from issuance of non-recourse debt financing, net of issuance costs	—			39,108
Repayment of non-recourse debt financing	(398		)	—
Proceeds from issuance of project loans, net of issuance costs	89,991			—
Assumption of project loan by customer	—			(40,672		)
Repayment of bank loans, project loans and other debt	(7,946		)	(7,850		)
Repayment of residential lease financing	(10,546		)	(7,213		)
Proceeds from sale-leaseback financing	727			16,685
Repayment of sale-leaseback financing	(90		)	(779		)
Contributions from noncontrolling interests and redeemable noncontrolling interests	45,890			30,552
Distributions to noncontrolling interests and redeemable noncontrolling interests	(2,260		)	(1,117		)
Proceeds from exercise of stock options	3			68
Excess tax benefit from stock-based compensation	572			—
Purchases of stock for tax withholding obligations on vested restricted stock	(38,704		)	(43,506		)
Net cash used in financing activities	(172,406		)	(26,960		)
Effect of exchange rate changes on cash and cash equivalents	(5,467		)	(187		)
Net increase (decrease) in cash and cash equivalents	(354,602		)	(7,770		)
Cash and cash equivalents, beginning of period	956,175			762,511
Cash and cash equivalents, end of period	$	601,573		$	754,741
Non-cash transactions:
Assignment of residential lease receivables to a third-party financial institution	$	1,307		$	1,496
Costs of solar power systems, leased and to be leased, sourced from existing inventory	$	14,664		$	7,120
Costs of solar power systems, leased and to be leased, funded by liabilities	$	6,388		$	1,634
Costs of solar power systems under sale-leaseback financing arrangements, sourced from project assets	$	1,050		$	15,269
Property, plant and equipment acquisitions funded by liabilities	$	20,185		$	5,544

The accompanying notes are an integral part of these consolidated financial statements.

7

Note 1. THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

The Company

SunPower Corporation (together with its subsidiaries, the "Company" or "SunPower") is a vertically integrated solar energy products and solutions company that designs, manufactures and delivers high-performance solar systems worldwide, serving as a one-stop shop for residential, commercial and utility-scale power plant customers. SunPower Corporation is a majority owned subsidiary of Total Energies Nouvelles Activités USA("Total"), a subsidiary of Total S.A. ("Total S.A.") (see Note 2).

In the first quarter of fiscal 2015, in connection with a realignment of its internal organizational structure, the Company changed its segment reporting from its Americas, EMEA and APAC Segments to three end-customer segments: (i) Residential Segment, (ii) Commercial Segment and (iii) Power Plant Segment. The Residential and Commercial Segments combined are referred to as Distributed Generation. Historically, the Americas Segment included both North and South America, the EMEA Segment included European countries as well as the Middle East and Africa, and the APAC Segment included all Asia-Pacific countries.

Under the new segmentation, the Company’s Residential Segment refers to sales of solar energy solutions to residential end customers through a variety of means, including cash sales and long-term leases directly to end customers, sales to resellers, including the Company's third-party global dealer network, and sales of the Company's operations and maintenance (“O&M”) services.  The Company’s Commercial Segment refers to sales of solar energy solutions to commercial and public entity end customers through a variety of means, including direct sales of turn-key engineering, procurement and construction ("EPC") services, sales to the Company's third-party global dealer network, sales of energy under power purchase agreements ("PPAs"), and sales of the Company's O&M services. The Power Plant Segment refers to the Company's large-scale solar products and systems business, which includes power plant project development and project sales, EPC services for power plant construction, power plant O&M services and component sales for power plants developed by third-parties, sometimes on a multi-year, firm commitment basis. 

The Company’s President and Chief Executive Officer, as the chief operating decision maker (“CODM”), reviews the Company's business and manages resource allocations and measures performance of the Company’s activities among these three end-customer segments.

Reclassifications of prior period segment information have been made to conform to the current period presentation. This change does not affect the Company's previously reported Consolidated Financial Statements.

Basis of Presentation and Preparation

Principles of Consolidation

The consolidated financial statements are prepared in accordance with accounting principles generally accepted in the United States of America ("United States" or "U.S.") and include the accounts of the Company, all of its subsidiaries and special purpose entities, as appropriate under consolidation accounting guidelines. Intercompany transactions and balances have been eliminated in consolidation. The assets of the special purpose entities that the Company sets up related to project financing for customers are not designed to be available to service the general liabilities and obligations of the Company in certain circumstances.

Reclassifications

Certain prior period balances, including prior period segment information, have been reclassified to conform to the current period presentation in the Company's consolidated financial statements and the accompanying notes. Such reclassifications had no effect on previously reported results of operations or accumulated deficit.

Fiscal Years

The Company has a 52-to-53-week fiscal year that ends on the Sunday closest to December 31. Accordingly, every fifth or sixth year will be a 53-week fiscal year. The current fiscal year, fiscal 2015, consists of 53 weeks, including a 14-week fourth fiscal quarter, while fiscal year 2014 consists of 52 weeks. The first quarter of fiscal 2015 ended on March 29, 2015, while the first quarter of fiscal 2014 ended on March 30, 2014. The first quarter of fiscal 2015 and fiscal 2014 were both 13-week quarters.

8

Management Estimates

The preparation of the consolidated financial statements in conformity with U.S. generally accepted accounting principles ("U.S. GAAP") requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Significant estimates in these consolidated financial statements include percentage-of-completion for construction projects; allowances for doubtful accounts receivable and sales returns; inventory and project asset write-downs; stock-based compensation; estimates for future cash flows and economic useful lives of property, plant and equipment, goodwill, valuations for business combinations, other intangible assets and other long-term assets; the fair value and residual value of leased solar power systems; fair value of financial instruments; valuation of contingencies and certain accrued liabilities such as accrued warranty; and income taxes and tax valuation allowances. Actual results could materially differ from those estimates.

Recent Accounting Pronouncements

In April 2015, the Financial Accounting Standards Board ("FASB") issued an update to the standards to provide a practical expedient for the measurement date of defined benefit obligation and plan assets for reporting entities with fiscal year-ends that do not coincide with a month-end. The updated standard allows such entities to measure defined benefit plan assets and obligations using the month-end that is closest to the entity's fiscal year-end and apply that practical expedient consistently from year to year and to all plans, if an entity has more than one plan. The new practical expedient guidance is effective for the Company no later than the first quarter of fiscal 2016 and requires a prospective approach to adoption. Early adoption is permitted. The Company is evaluating the potential impact of this standard on its consolidated financial statements and disclosures.

In April 2015, the FASB issued an update to the standards for the presentation of debt issuance costs to reduce complexity in accounting standards and to align with IFRS. The updated standard requires debt issuance costs to be presented in the balance sheet as a direct deduction from the carrying value of the associated debt liability. U.S. generally accepted accounting principles previously required debt issuance costs to be reflected as an asset on the Company's balance sheet. The new debt issuance cost guidance is effective for the Company no later than the first quarter of fiscal 2016 and requires a retrospective approach to adoption. The Company has elected early adoption of the updated accounting standard, effective in the first quarter of fiscal 2015, resulting in the reclassification of $11.6M of debt issuance costs from "Other long-term assets" to "Long-term debt" and "Convertible debt, net of current portion" in the Consolidated Balance Sheets as of December 28, 2014.

In February 2015, the FASB issued a new standard that modifies existing consolidation guidance for reporting organizations that are required to evaluate whether they should consolidate certain legal entities. The new consolidation guidance is effective for the Company in the first quarter of fiscal 2016 and requires either a retrospective or a modified retrospective approach to adoption. Early adoption is permitted.  The Company is evaluating the available methods and the potential impact of this standard on its consolidated financial statements and disclosures.

In May 2014, the FASB issued a new revenue recognition standard based on the principle that revenue is recognized to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods and services. The new revenue recognition standard becomes effective for the Company in the first quarter of fiscal 2017 and is to be applied retrospectively using one of two prescribed methods. The Company is evaluating the application method and impact on its consolidated financial statements and disclosures.

Other than as described above, there has been no issued accounting guidance not yet adopted by the Company that it believes is material or potentially material to its consolidated financial statements.

9

Note 2. TRANSACTIONS WITH TOTAL AND TOTAL S.A.

In June 2011, Total completed a cash tender offer to acquire 60% of the Company's then outstanding shares of common stock at a price of $23.25 per share, for a total cost of approximately $1.4 billion. In December 2011, the Company entered into a Private Placement Agreement with Total, under which Total purchased, and the Company issued and sold, 18.6 million shares of the Company's common stock for a purchase price of $8.80 per share, thereby increasing Total's ownership to approximately 66% of the Company's outstanding common stock as of that date.

Credit Support Agreement

On April 28, 2011, the Company and Total S.A. entered into a Credit Support Agreement (the "Credit Support Agreement") under which Total S.A. agreed to enter into one or more guarantee agreements (each a "Guaranty") with banks providing letter of credit facilities to the Company. Total S.A. will guarantee the Company's obligation to reimburse the applicable issuing bank a draw on a letter of credit and pay interest thereon in accordance with the letter of credit facility between such bank and the Company. Under the Credit Support Agreement, the Company may also request that Total S.A. provide a Guaranty in support of the Company's payment obligations with respect to a letter of credit facility. The Company is required to pay Total S.A. a guarantee fee for each letter of credit that is the subject of a Guaranty under the Credit Support Agreement and was outstanding for all or part of the preceding calendar quarter. The Credit Support Agreement was amended on June 7, 2011, it became effective on June 28, 2011 in connection with the completion of the Tender Offer (the "CSA Effective Date"), and it was further amended on each of December 12, 2011, and December 14, 2012.

The Credit Support Agreement will terminate following the fifth anniversary of the CSA Effective Date, after the later of the payment in full of all obligations thereunder and the termination or expiration of each Guaranty provided thereunder.

Affiliation Agreement

The Company and Total have entered into an Affiliation Agreement that governs the relationship between Total and the Company (the "Affiliation Agreement"). Until the expiration of a standstill period (the "Standstill Period"), and subject to certain exceptions, Total, Total S.A., any of their respective affiliates and certain other related parties (collectively the "Total Group") may not effect, seek, or enter into discussions with any third-party regarding any transaction that would result in the Total Group beneficially owning shares of the Company in excess of certain thresholds, or request the Company or the Company's independent directors, officers or employees, to amend or waive any of the standstill restrictions applicable to the Total Group.

The Affiliation Agreement imposes certain limitations on the Total Group's ability to seek to effect a tender offer or merger to acquire 100% of the outstanding voting power of the Company and imposes certain limitations on the Total Group's ability to transfer 40% or more of outstanding shares or voting power of the Company to a single person or group that is not a direct or indirect subsidiary of Total S.A. During the Standstill Period, no member of the Total Group may, among other things, solicit proxies or become a participant in an election contest relating to the election of directors to the Company's Board of Directors.

The Affiliation Agreement provides Total with the right to maintain its percentage ownership in connection with any new securities issued by the Company, and Total may also purchase shares on the open market or in private transactions with disinterested stockholders, subject in each case to certain restrictions.

The Affiliation Agreement also imposes certain restrictions with respect to the Company's and its Board of Directors' ability to take certain actions, including specifying certain actions that require approval by the directors other than the directors appointed by Total and other actions that require stockholder approval by Total.

Research & Collaboration Agreement

Total and the Company have entered into a Research & Collaboration Agreement (the "R&D Agreement") that establishes a framework under which the parties engage in long-term research and development collaboration ("R&D Collaboration"). The R&D Collaboration encompasses a number of different projects, with a focus on advancing the Company's technology position in the crystalline silicon domain, as well as ensuring the Company's industrial competitiveness. The R&D Agreement enables a joint committee to identify, plan and manage the R&D Collaboration.

10

Compensation and Funding Agreement

In February 2012, the Company entered into a Compensation and Funding Agreement (the "Compensation and Funding Agreement") with Total S.A. that established the parameters for the terms of liquidity injections that may be required to be provided by Total S.A. to the Company from time to time. During the term of the Compensation and Funding Agreement, the Company is required to pay Total S.A. a guarantee fee in an amount equal to 2.75% per annum of the average amount of the Company's indebtedness that is guaranteed by Total S.A. pursuant to any guaranty issued in accordance with the terms of the Compensation and Funding Agreement during such quarter. Any payment obligations of the Company to Total S.A. under the Compensation and Funding Agreement that are not paid when due accrue interest until paid in full at a rate equal to 6-month U.S. LIBOR as in effect from time to time plus 5.00% per annum.

Upfront Warrant

In February 2012, the Company issued a warrant (the "Upfront Warrant") to Total S.A. to purchase 9,531,677 shares of the Company's common stock with an exercise price of $7.8685, subject to adjustment for customary anti-dilution and other events. The Upfront Warrant, governed by the Private Placement Agreement and the Compensation and Funding Agreement, is exercisable at any time for seven years after its issuance, provided that, so long as at least $25.0 million in aggregate of the Company's convertible debt remains outstanding, such exercise will not cause "any person," including Total S.A., to, directly or indirectly, including through one or more wholly-owned subsidiaries, become the "beneficial owner" (as such terms are defined in Rule 13d-3 and Rule 13d-5 under the Securities and Exchange Act of 1934, as amended), of more than 74.99% of the voting power of the Company's common stock at such time, a circumstance which would trigger the repurchase or conversion of the Company's existing convertible debt.

0.75% Debentures Due 2018

In May 2013, the Company issued $300.0 million in principal amount of its 0.75% senior convertible debentures due 2018 (the "0.75% debentures due 2018"). $200.0 million in aggregate principal amount of the 0.75% debentures due 2018 were acquired by Total. The 0.75% debentures due 2018 are convertible into shares of the Company's common stock at any time based on an initial conversion price equal to $24.95 per share, which provides Total the right to acquire up to 8,017,420 shares of the Company's common stock. The applicable conversion rate may adjust in certain circumstances, including a fundamental change, as described in the indenture governing the 0.75% debentures due 2018 (see Note 10).

0.875% Debentures Due 2021

In June 2014, the Company issued $400.0 million in principal amount of its 0.875% senior convertible debentures due 2021 (the "0.875% debentures due 2021"). An aggregate principal amount of $250.0 million of the 0.875% debentures due 2021 were acquired by Total. The 0.875% debentures due 2021 are convertible into shares of the Company's common stock at any time based on an initial conversion price equal to $48.76 per share, which provides Total the right to acquire up to 5,126,775 shares of the Company's common stock. The applicable conversion rate may adjust in certain circumstances, including a fundamental change, as described in the indenture governing the 0.875% debentures due 2021 (see Note 10).

Joint Projects with Total and its Affiliates:

The Company enters into various engineering, procurement and construction ("EPC") and operations and maintenance ("O&M") agreements relating to solar projects, including EPC and O&M services agreements relating to projects owned or partially owned by Total and its affiliates. As of March 29, 2015, the Company had $0.7 million of "Costs and estimated earnings in excess of billings" and $1.6 million of "Accounts receivable, net" on its Consolidated Balance Sheets related to projects in which Total and its affiliates have a direct or indirect material interest.

11

Related-Party Transactions with Total and its Affiliates:

	Three Months Ended
(In thousands)	March 29, 2015			March 30, 2014
Revenue:
EPC, O&M, and components revenue under joint projects	$	199		$	2,889
Research and development expense:
Offsetting contributions received under R&D Agreement	$	(422	)	$	(260	)
Interest expense:
Guarantee fees incurred under Credit Support Agreement	$	2,726		$	2,745
Fees incurred under the Compensation and Funding Agreement	$	—		$	1,200
Interest expense incurred on the 0.75% debentures due 2018	$	375		$	375
Interest expense incurred on the 0.875% debentures due 2021	$	680		$	—

Note 3. GOODWILL AND OTHER INTANGIBLE ASSETS

Goodwill

As of both March 29, 2015 and December 28, 2014, the Company had goodwill with a carrying amount of $21.2 million, $20.8 million of which was allocated to the Residential Segment and $0.4 million of which was allocated to the Power Plant Segment. No goodwill impairment was recorded during the three months ended March 29, 2015 and March 30, 2014.

Other Intangible Assets

The following tables present details of the Company's acquired other intangible assets:

(In thousands)	Gross		Accumulated Amortization			Net
As of March 29, 2015
Patents and purchased technology	$	13,675	$	(1,088	)	$	12,587
Purchased in-process research and development	3,700		—			3,700
Other	$	500	$	—		500
	$	17,875	$	(1,088	)	$	16,787
As of December 28, 2014
Patents and purchased technology	$	13,675	$	(615	)	$	13,060
Purchased in-process research and development	$	3,700	$	—		$	3,700
	$	17,375	$	(615	)	$	16,760

Amortization expense for intangible assets totaled $0.5 million for the three months ended March 29, 2015. No amortization expense was incurred during the three months ended March 30, 2014.

As of March 29, 2015, the estimated future amortization expense related to intangible assets with finite useful lives is as follows:

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(In thousands)	Amount
Fiscal Year
2015 (remaining nine months)	$	1,891
2016	2,114
2017	1,989
2018	1,989
2019	1,989
Thereafter	3,115
	$	13,087

Note 4. BALANCE SHEET COMPONENTS

	As of
(In thousands)	March 29, 2015			December 28, 2014
Accounts receivable, net:
Accounts receivable, gross1,2	$	485,614		$	523,613
Less: allowance for doubtful accounts	(17,226		)	(18,152		)
Less: allowance for sales returns	(520		)	(1,145		)
	$	467,868		$	504,316

¹  Includes short-term financing receivables associated with solar power systems leased of $11.3 million and $9.1 million as of March 29, 2015 and December 28, 2014, respectively (see Note 5).

²  Includes short-term retainage of $240.3 million and $213.0 million as of March 29, 2015 and December 28, 2014, respectively. Retainage refers to the earned, but unbilled, portion of a construction and development project for which payment is deferred by the customer until certain contractual milestones are met.

	As of
(In thousands)	March 29, 2015		December 28, 2014
Inventories:
Raw materials	$	71,552	$	46,848
Work-in-process	85,800		67,903
Finished goods	145,235		93,822
	$	302,587	$	208,573

	As of
(In thousands)	March 29, 2015		December 28, 2014
Prepaid expenses and other current assets:
Deferred project costs	$	57,989	$	64,784
Bond hedge derivative	—		51,951
VAT receivables, current portion	6,628		7,554
Deferred costs for solar power systems to be leased	26,633		22,537
Derivative financial instruments	12,196		7,018
Prepaid inventory	50,395		—
Other receivables	92,924		79,927
Other prepaid expenses	54,923		47,448
Other current assets	44,137		47,626
	$	345,825	$	328,845

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	As of
(In thousands)	March 29, 2015		December 28, 2014
Project assets - plants and land:
Project assets — plants	$	196,890	$	104,328
Project assets — land	12,154		12,328
	$	209,044	$	116,656
Project assets — plants and land, current portion	$	179,650	$	101,181
Project assets — plants and land, net of current portion	$	29,394	$	15,475

	As of
(In thousands)	March 29, 2015			December 28, 2014
Property, plant and equipment, net:
Manufacturing equipment3	$	556,730		$	554,124
Land and buildings	26,138			26,138
Leasehold improvements	237,713			236,867
Solar power systems4	126,350			124,848
Computer equipment	92,636			88,257
Furniture and fixtures	9,384			9,436
Construction-in-process	97,493			75,570
	1,146,444			1,115,240
Less: accumulated depreciation	(551,978		)	(529,896		)
	$	594,466		$	585,344

³  The Company's mortgage loan agreement with International Finance Corporation ("IFC") is collateralized by certain manufacturing equipment with a net book value of $107.7 million and $111.9 million as of March 29, 2015 and December 28, 2014, respectively.

⁴  Includes $95.4 million and $94.4 million of solar power systems associated with sale-leaseback transactions under the financing method as of March 29, 2015 and December 28, 2014, respectively, which are depreciated using the straight-line method to their estimated residual values over the lease terms of up to 20 years (see Note 5).

	As of
(In thousands)	March 29, 2015		December 28, 2014
Property, plant and equipment, net by geography5:
Philippines	$	345,803	$	335,643
United States	182,362		183,631
Mexico	40,393		40,251
Europe	24,620		24,748
Other	1,288		1,071
	$	594,466	$	585,344

⁵  Property, plant and equipment, net by geography is based on the physical location of the assets.

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	As of
(In thousands)	March 29, 2015		December 28, 2014
Other long-term assets:
Equity method investments	$	213,089	$	210,898
Cost method investments	32,277		32,308
Other	61,644		57,023
	$	307,010	$	300,229

	As of
(In thousands)	March 29, 2015		December 28, 2014
Accrued liabilities:
Bond hedge derivatives	$	—	$	51,951
Employee compensation and employee benefits	36,355		47,667
Deferred revenue	27,075		33,412
Short-term residential lease financing	1,270		1,489
Interest payable	11,703		10,575
Short-term warranty reserves	14,467		13,278
Restructuring reserve	9,130		13,477
VAT payables	7,316		6,073
Derivative financial instruments	2,715		1,345
Inventory payable	50,395		—
Other	109,065		151,767
	$	269,491	$	331,034

	As of
(In thousands)	March 29, 2015		December 28, 2014
Other long-term liabilities:
Deferred revenue	$	178,602	$	176,804
Long-term warranty reserves	139,630		141,370
Long-term sale-leaseback financing	112,240		111,904
Long-term residential lease financing	19,032		27,122
Unrecognized tax benefits	23,069		31,764
Long-term pension liability	10,780		9,980
Derivative financial instruments	10,548		3,712
Other	49,072		52,688
	$	542,973	$	555,344

	As of
(In thousands)	March 29, 2015			December 28, 2014
Accumulated other comprehensive loss:
Cumulative translation adjustment	$	(10,715	)	$	(8,712	)
Net unrealized loss on derivatives	(5,631		)	(1,443		)
Net loss on long-term pension liability adjustment	(2,878		)	(2,878		)
Deferred taxes	(311		)	(422		)
	$	(19,535	)	$	(13,455	)

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Note 5. LEASING

Residential Lease Program

The Company offers a solar lease program, in partnership with third-party investors, which provides U.S. residential customers SunPower systems under 20-year lease agreements that include system maintenance and warranty coverage. Leases are classified as either operating or sales-type leases in accordance with the relevant accounting guidelines.

Operating Leases

The following table summarizes "Solar power systems leased and to be leased, net" under operating leases on the Company's Consolidated Balance Sheets as of March 29, 2015 and December 28, 2014:

	As of
(In thousands)	March 29, 2015			December 28, 2014
Solar power systems leased and to be leased, net1,2:
Solar power systems leased	$	429,687		$	396,704
Solar power systems to be leased	28,683			21,202
	458,370			417,906
Less: accumulated depreciation	(31,183		)	(26,993		)
	$	427,187		$	390,913

¹  Solar power systems leased and to be leased, net are physically located in the United States.

²  As of March 29, 2015 and December 28, 2014, the Company has pledged solar assets with an aggregate book value of $82.1 million and $140.1 million, respectively, to third-party investors as security for the Company's contractual obligations.

The following table presents the Company's minimum future rental receipts on operating leases placed in service as of March 29, 2015:

(In thousands)	Fiscal 2015 (remaining nine months)		Fiscal 2016	Fiscal 2017	Fiscal 2018	Fiscal 2019	Thereafter	Total
Minimum future rentals on operating leases placed in service1	$	12,888	15,165	15,206	15,255	15,303	218,379	$	292,196

¹  Minimum future rentals on operating leases placed in service does not include contingent rentals that may be received from customers under agreements that include performance-based incentives.

Sales-Type Leases

As of March 29, 2015 and December 28, 2014, respectively, the Company's net investment in sales-type leases presented in "Accounts receivable, net" and "Long-term financing receivables, net" on the Company's Consolidated Balance Sheets was as follows:

	As of
(In thousands)	March 29, 2015			December 28, 2014
Financing receivables:
Minimum lease payments receivable1	$	351,029		$	319,244
Unguaranteed residual value	37,775			34,343
Unearned income	(78,769		)	(74,859		)
Net financing receivables	$	310,035		$	278,728
Current	$	11,250		$	9,141
Long-term	$	298,785		$	269,587

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¹  Net of allowance for doubtful accounts.

As of March 29, 2015, future maturities of net financing receivables for sales-type leases are as follows:

(In thousands)	Fiscal 2015 (remaining nine months)		Fiscal 2016	Fiscal 2017	Fiscal 2018	Fiscal 2019	Thereafter	Total
Scheduled maturities of minimum lease payments receivable1	$	12,938	17,172	17,369	17,574	17,784	268,192	$	351,029

¹  Minimum future rentals on sales-type leases placed in service does not include contingent rentals that may be received from customers under agreements that include performance-based incentives.

Third-Party Financing Arrangements

The Company has entered into multiple facilities under which solar power systems are financed by third-party investors. Under the terms of certain programs the investors make an upfront payment to the Company, which the Company recognizes as a non-recourse liability that will be reduced over the specified term of the program as customer receivables and government incentives are received by the third-party investors. As the non-recourse liability is reduced over time, the Company makes a corresponding reduction in customer and government incentive receivables on its balance sheet. The Company accounts for both operating and sales-type leases with its residential lease customers under this approach in the consolidated financial statements. As of March 29, 2015, and December 28, 2014, the remaining liability to the third-party investors presented in "Accrued liabilities" and "Other long-term liabilities" on the Company's Consolidated Balance Sheets, was $20.3 million and $28.6 million, respectively (see Note 4).

The Company has entered into multiple facilities with third-party investors under which the parties invest in entities that hold SunPower solar power systems and leases with residential customers. The Company holds controlling interests in these less-than-wholly-owned entities and has therefore fully consolidated these entities. The Company accounts for the portion of net assets in the consolidated entities attributable to the investors as "Redeemable noncontrolling interests" and "Noncontrolling interests" in its consolidated financial statements. Noncontrolling interests in subsidiaries that are redeemable at the option of the noncontrolling interest holder are classified as "Redeemable noncontrolling interests in subsidiaries," between liabilities and equity on the Company's Consolidated Balance Sheets. During the three months ended March 29, 2015 and March 30, 2014 the Company received $45.9 million and $30.6 million, respectively, in contributions from investors under the related facilities and attributed $19.6 million and $22.0 million, respectively, in losses to the third-party investors primarily as a result of allocating certain assets, including tax credits, to the investors.

Sale-Leaseback Arrangements

The Company enters into sale-leaseback arrangements under which solar power systems are sold to third parties and subsequently leased back by the Company over minimum lease terms of up to 20 years. Separately, the Company enters into PPAs with end customers, who host the leased solar power systems and buy the electricity directly from the Company under PPAs with durations of up to 25 years. At the end of the lease term, the Company has the option to purchase the systems at fair value or may be required to remove the systems and return them to the third parties.

The Company has classified its sale-leaseback arrangements of solar power systems not involving integral equipment as operating leases. The deferred profit on the sale of these systems is recognized over the term of the lease. As of March 29, 2015, future minimum lease obligations associated with these systems was $93.1 million, which will be recognized over the minimum lease terms. Future minimum payments to be received from customers under PPAs associated with the solar power systems under sale-leaseback arrangements classified as operating leases will be recognized over the lease terms of up to 20 years and are contingent upon the amounts of energy produced by the solar power systems.

The Company enters into sale-leaseback arrangements under which the systems under the sale-leaseback arrangements have been determined to be integral equipment as defined under the accounting guidance for such transactions. The Company was further determined to have continuing involvement with the solar power systems throughout the lease due to purchase option rights. As a result of such continuing involvement, the Company accounts for each transaction as a financing. Under the financing method, the proceeds received from the sale of the solar power systems are recorded by the Company as financing liabilities and presented within "Other long-term liabilities" in the Company's Consolidated Balance Sheets (see Note 4). The financing liabilities are subsequently reduced by the Company's payments to lease back the solar power systems, less

17

interest expense calculated based on the Company's incremental borrowing rate adjusted to the rate required to prevent negative amortization. The solar power systems under the sale-leaseback arrangements remain on the Company's balance sheet and are classified within "Property, plant and equipment, net" (see Note 4). As of March 29, 2015, future minimum lease obligations for the sale-leaseback arrangements accounted for under the financing method were $99.4 million, which will be recognized over the lease terms of up to 20 years.

Note 6. FAIR VALUE MEASUREMENTS

Fair value is estimated by applying the following hierarchy, which prioritizes the inputs used to measure fair value into three levels and bases the categorization within the hierarchy upon the lowest level of input that is available and significant to the fair value measurement (observable inputs are the preferred basis of valuation):

• Level 1 — Quoted prices in active markets for identical assets or liabilities.

• Level 2 — Measurements are inputs that are observable for assets or liabilities, either directly or indirectly, other than quoted prices included within Level 1.

• Level 3 — Prices or valuations that require management inputs that are both significant to the fair value measurement and unobservable.

Assets and Liabilities Measured at Fair Value on a Recurring Basis

The Company measures certain assets and liabilities at fair value on a recurring basis. There were no transfers between fair value measurement levels during any presented period. The Company did not have any assets or liabilities measured at fair value on a recurring basis requiring Level 3 inputs as of March 29, 2015 or December 28, 2014.

The following table summarizes the Company's assets and liabilities measured and recorded at fair value on a recurring basis as of March 29, 2015 and December 28, 2014, respectively:

	March 29, 2015						December 28, 2014
(In thousands)	Total		Level 1		Level 2		Total		Level 1		Level 2
Assets
Cash and cash equivalents1:
Money market funds	$	170,000	$	170,000	$	—	$	375,000	$	375,000	$	—
Prepaid expenses and other current assets:
Debt derivatives (Note 10)	—		—		—		51,951		—		51,951
Derivative financial instruments (Note 11)	12,196		—		12,196		7,018		—		7,018
Total assets	$	182,196	$	170,000	$	12,196	$	433,969	$	375,000	$	58,969
Liabilities
Accrued liabilities:
Debt derivatives (Note 10)	$	—	$	—	$	—	$	51,951	$	—	$	51,951
Derivative financial instruments (Note 11)	2,715		—		2,715		1,345		—		1,345
Other long-term liabilities:
Derivative financial instruments (Note 11)	10,548		—		10,548		3,712		—		3,712
Total liabilities	$	13,263	$	—	$	13,263	$	57,008	$	—	$	57,008

¹The Company's cash equivalents consist of money market fund instruments and commercial paper that are classified as available-for-sale and are highly liquid investments with original maturities of 90 days or less. The Company's money market fund instruments are categorized within Level 1 of the fair value hierarchy because they are valued using quoted market prices for identical instruments in active markets.

Other financial instruments, including the Company's accounts receivable, accounts payable and accrued liabilities, are carried at cost, which generally approximates fair value due to the short-term nature of these instruments.

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Debt Derivatives

The 4.50% Bond Hedge (as defined in Note 10) and the embedded cash conversion option within the 4.50% debentures due 2015 (as defined in Note 10), which both matured in the first quarter of 2015, were classified as derivative instruments that required mark-to-market treatment with changes in fair value reported in the Company's Consolidated Statements of Operations. The fair values of these derivative instruments as of December 28, 2014 were determined utilizing the following Level 1 and Level 2 inputs:

	As of1
	December 28, 2014
Stock price	$	26.32
Exercise price	$	22.53
Interest rate	0.19		%
Stock volatility	61.7		%
Credit risk adjustment	0.65		%
Maturity date	February 18, 2015

¹  The valuation model utilizes these inputs to value the right but not the obligation to purchase one share of the Company's common stock at $22.53. The Company utilized a Black-Scholes valuation model to value the 4.50% Bond Hedge and embedded cash conversion option. The underlying input assumptions were determined as follows:

(i) Stock price. The closing price of the Company's common stock on the last trading day of the quarter.

(ii) Exercise price. The exercise price of the 4.50% Bond Hedge and the embedded cash conversion option.

(iii) Interest rate. The Treasury Strip rate associated with the life of the 4.50% Bond Hedge and the embedded cash conversion option.

(iv) Stock volatility. The volatility of the Company's common stock over the life of the 4.50% Bond Hedge and the embedded cash conversion option.

(v) Credit risk adjustment. Represents the weighted average of the credit default swap rate of the counterparties.

Assets and Liabilities Measured at Fair Value on a Non-Recurring Basis

The Company measures certain investments and non-financial assets (including project assets, property, plant and equipment, and other intangible assets) at fair value on a non-recurring basis in periods after initial measurement in circumstances when the fair value of such asset is impaired below its recorded cost.

Held-to-Maturity Debt Securities

The Company's debt securities, classified as held-to-maturity, are Philippine government bonds that the Company maintains as collateral for present and future business transactions within the Philippines. These bonds have maturity dates of up to five years and are classified as "Restricted long-term marketable securities" on the Company's Consolidated Balance Sheets. As of March 29, 2015 and December 28, 2014, these bonds had a carrying value of $7.0 million and $7.2 million, respectively. The Company records such held-to-maturity investments at amortized cost based on its ability and intent to hold the securities until maturity. The Company monitors for changes in circumstances and events that would affect its ability and intent to hold such securities until the recorded amortized costs are recovered. No other-than-temporary impairment loss was incurred during any presented period. The held-to-maturity debt securities were categorized in Level 2 of the fair value hierarchy.

Equity and Cost Method Investments

The Company holds equity investments in non-consolidated entities that are accounted for under both the equity and cost method. The Company monitors these investments, which are included in "Other long-term assets" in its Consolidated Balance Sheets, for impairment and records reductions in the carrying values when necessary. Circumstances that indicate an other-than-temporary decline include Level 2 and Level 3 measurements such as the valuation ascribed to the issuing company in subsequent financing rounds, decreases in quoted market prices, and declines in operations of the issuer.

As of March 29, 2015 and December 28, 2014, the Company had $213.1 million and $210.9 million, respectively, in investments accounted for under the equity method (see Note 9). As of March 29, 2015 and December 28, 2014, the Company had $32.3 million and $32.3 million, respectively, in investments accounted for under the cost method.

19

Related-Party Transactions with Investees:

	As of
(In thousands)	March 29, 2015		December 28, 2014
Accounts receivable	$	20,235	$	22,425
Accounts payable	$	26,252	$	50,039
Customer advances	$	1,212	$	4,210
Other long-term assets:
Long-term note receivable	$	1,553	$	1,623

	Three Months Ended
(In thousands)	March 29, 2015		March 30, 2014
Payments made to investees for products/services	$	119,177	$	105,010
Revenue from sales to investees of products/services	$	5,603	$	—

Cost Method Investment in Tendril Networks, Inc. ("Tendril")

In November 2014, the Company purchased $20.0 million of preferred stock for a minority stake in Tendril, accounted for under the cost method as the preferred stock was deemed not to be in-substance common stock. In connection with the investment, the Company entered into an agreement to purchase, at the Company's option, up to 14 million shares of Tendril common stock through November 23, 2024, subject to the parties' achievement of certain financial and operational milestones and other conditions.

In connection with the initial investment in Tendril, the Company also entered into commercial agreements under a Master Services Agreement ("MSA") and Statements of Work ("SOWs"). Under these commercial agreements, Tendril will use up to $13.0 million of SunPower's initial investment to develop, jointly with SunPower, solar software solution products for the Company.

Note 7. RESTRUCTURING

November 2014 Restructuring Plan

On November 14, 2014, the Company announced a reorganization plan aimed towards realigning resources consistently with SunPower's global strategy and improving its overall operating efficiency and cost structure. In connection with this plan, which is expected to be completed by the end of fiscal 2015, SunPower expects approximately 95 to 115 employees to be affected, primarily in Europe, representing approximately 1% to 2% of SunPower's global workforce. SunPower expects to incur restructuring charges totaling approximately $17 million to $25 million, principally composed of severance benefits, lease and related termination costs, and other associated costs. SunPower expects more than 90% of total charges to be cash. The actual timing and costs of the plan may differ from SunPower’s current expectations and estimates due to a number of factors, including uncertainties related to required consultations with employee representatives as well as other local labor law requirements and mandatory processes in the relevant jurisdictions.

Legacy Restructuring Plans

During fiscal 2012 and 2011, the Company implemented approved restructuring plans, related to all segments, to align with changes in the global solar market which included the consolidation of the Company's Philippine manufacturing operations as well as actions to accelerate operating cost reduction and improve overall operating efficiency. These restructuring activities were substantially complete as of March 29, 2015, however, the Company expects to continue to incur costs as it finalizes previous estimates and actions in connection with these plans, primarily due to other costs, such as legal services.

The following table summarizes the restructuring charges recognized in the Company's Consolidated Statements of Operations:

20

	Three Months Ended						Cumulative To Date
(In thousands)	March 29, 2015			March 30, 2014
November 2014 Plan:
Non-cash impairment charges	$	—		$	—		$	719
Severance and benefits	2,063			—			14,243
Other costs1	1,724			—			1,937
	3,787			—			16,899
Legacy Restructuring Plans:
Non-cash impairment charges	—			—			60,596
Severance and benefits	(132		)	(531		)	46,577
Lease and related termination costs	—			(402		)	5,774
Other costs1	(74		)	472			10,786
	(206		)	(461		)	123,733
Total restructuring charges	$	3,581		$	(461	)	$	140,632

The following table summarizes the restructuring reserve activity during the fiscal year ended March 29, 2015:

	Three Months Ended
(In thousands)	December 28, 2014		Charges (Benefits)			Payments			March 29, 2015
November 2014 Plan:
Severance and benefits	$	12,075	$	2,063		$	(6,745	)	$	7,393
Other costs1	145		1,724			(852		)	1,017
	12,220		3,787			(7,597		)	8,410
Legacy Restructuring Plans:
Severance and benefits	421		(132		)	(144		)	145
Lease and related termination costs	390		—			(80		)	310
Other costs1	446		(74		)	(107		)	265
	1,257		(206		)	(331		)	720
Total restructuring liability	$	13,477	$	3,581		$	(7,928	)	$	9,130

¹  Other costs primarily represent associated legal services.

Note 8. COMMITMENTS AND CONTINGENCIES

Facility and Equipment Lease Commitments

The Company leases certain facilities under non-cancellable operating leases from unaffiliated third parties. As of March 29, 2015, future minimum lease payments for facilities under operating leases were $52.8 million, to be paid over the remaining contractual terms of up to 10 years. The Company also leases certain buildings, machinery and equipment under non-cancellable capital leases. As of March 29, 2015, future minimum lease payments for assets under capital leases were $6.4 million, to be paid over the remaining contractual terms of up to 10 years.

Purchase Commitments

The Company purchases raw materials for inventory and manufacturing equipment from a variety of vendors. During the normal course of business, in order to manage manufacturing lead times and help assure adequate supply, the Company enters into agreements with contract manufacturers and suppliers that either allow them to procure goods and services based on specifications defined by the Company, or that establish parameters defining the Company's requirements. In certain instances, these agreements allow the Company the option to cancel, reschedule or adjust the Company's requirements based on its

21

business needs before firm orders are placed. Consequently, only a portion of the Company's disclosed purchase commitments arising from these agreements are firm, non-cancellable and unconditional commitments.

The Company also has agreements with several suppliers, including some of its non-consolidated investees, for the procurement of polysilicon, ingots, wafers, and Solar Renewable Energy Credits, among others, which specify future quantities and pricing of products to be supplied by the vendors for periods up to 10 years and provide for certain consequences, such as forfeiture of advanced deposits and liquidated damages relating to previous purchases, in the event that the Company terminates the arrangements.

Future purchase obligations under non-cancellable purchase orders and long-term supply agreements as of March 29, 2015 are as follows:

(In thousands)	Fiscal 2015 (remaining nine months)		Fiscal 2016	Fiscal 2017	Fiscal 2018	Fiscal 2019	Thereafter	Total1,2,3
Future purchase obligations	$	646,615	317,916	343,806	182,181	175,695	164,847	$	1,831,060

¹  Total future purchase obligations as of March 29, 2015 include $81.8 million to related parties.

²  Total future purchase obligations was composed of $203.2 million related to non-cancellable purchase orders and $1.6 billion related to long-term supply agreements.

³The Company did not fulfill all of the purchase commitments it was otherwise obligated to take by December 31, 2014, as specified in several related contracts with a supplier. As of March 29, 2015, the Company has recorded an offsetting asset, recorded within "Prepaid expenses and other current assets," and liability, recorded within "Accrued liabilities," totaling $50.4 million. This amount represents the unfulfilled amount as of that date as the Company expects to satisfy the obligation via purchases of inventory in fiscal 2015, within the cure period specified in the contracts.

The Company expects that all obligations related to non-cancellable purchase orders for manufacturing equipment will be recovered through future cash flows of the solar cell manufacturing lines and solar panel assembly lines when such long-lived assets are placed in service. Factors considered important that could result in an impairment review include significant under-performance relative to expected historical or projected future operating results, significant changes in the manner of use of acquired assets, and significant negative industry or economic trends. Obligations related to non-cancellable purchase orders for inventories match current and forecasted sales orders that will consume these ordered materials and actual consumption of these ordered materials are compared to expected demand regularly. The Company anticipates total obligations related to long-term supply agreements for inventories will be recovered because quantities are less than management's expected demand for its solar power products. The terms of the long-term supply agreements are reviewed by management and the Company assesses the need for any accruals for estimated losses on adverse purchase commitments, such as lower of cost or market value adjustments that will not be recovered by future sales prices, forfeiture of advanced deposits and liquidated damages, as necessary.

Advances to Suppliers

As noted above, the Company has entered into agreements with various vendors, some of which are structured as "take or pay" contracts, that specify future quantities and pricing of products to be supplied. Certain agreements also provide for penalties or forfeiture of advanced deposits in the event the Company terminates the arrangements. Under certain agreements, the Company is required to make prepayments to the vendors over the terms of the arrangements. The Company did not make any additional advance payments under its long-term supply agreements during the first quarter of fiscal 2015. As of March 29, 2015 and December 28, 2014, advances to suppliers totaled $395.8 million and $409.7 million, respectively, of which $90.3 million and $98.1 million, respectively, is classified as short-term in the Company's Consolidated Balance Sheets. Two suppliers accounted for 83% and 17% of total advances to suppliers as of March 29, 2015, and 82% and 17% as of December 28, 2014.

Advances from Customers

The Company has entered into other agreements with customers who have made advance payments for solar power products and systems. These advances will be applied as shipments of product occur or upon completion of certain project milestones. The estimated utilization of advances from customers as of March 29, 2015 is as follows:

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(In thousands)	Fiscal 2015 (remaining nine months)		Fiscal 2016	Fiscal 2017	Fiscal 2018	Fiscal 2019	Thereafter	Total
Estimated utilization of advances from customers	$	19,382	25,020	27,039	27,039	28,842	43,263	$	170,585

In fiscal 2010, the Company and its joint venture, AUO SunPower Sdn. Bhd. ("AUOSP"), entered into an agreement under which the Company resells to AUOSP polysilicon purchased from a third-party supplier. Advance payments provided by AUOSP related to such polysilicon are then made by the Company to the third-party supplier. These advance payments are applied as a credit against AUOSP’s polysilicon purchases from the Company. Such polysilicon is used by AUOSP to manufacture solar cells that are sold to the Company on a "cost-plus" basis. As of March 29, 2015 and December 28, 2014, outstanding advance payments received from AUOSP totaled $162.7 million and $167.2 million, respectively, of which $19.4 million and $18.3 million, respectively, was classified as short-term in the Company's Consolidated Balance Sheets, based on projected product shipment dates.

Product Warranties

The following table summarizes accrued warranty activity for the three months ended March 29, 2015 and March 30, 2014, respectively:

	Three Months Ended
(In thousands)	March 29, 2015			March 30, 2014
Balance at the beginning of the period	$	154,648		$	149,372
Accruals for warranties issued during the period	8,161			5,190
Settlements and adjustments during the period	(8,711		)	(3,147		)
Balance at the end of the period	$	154,098		$	151,415

Contingent Obligations

Project agreements entered into with the Company's Commercial and Power Plant customers often require the Company to undertake obligations including: (i) system output performance warranties; (ii) system maintenance; (iii) penalty payments or customer termination rights if the system the Company is constructing is not commissioned within specified timeframes or other milestones are not achieved; and (iv) system put-rights whereby the Company could be required to buy back a customer's system at fair value on specified future dates if certain minimum performance thresholds are not met for periods of up to two years. Historically, the Company's systems have performed significantly above the performance warranty thresholds, and there have been no cases in which the Company has had to buy back a system.

Future Financing Commitments

The Company is required to provide certain funding under the joint venture agreement with AU Optronics Singapore Pte. Ltd. ("AUO") and another unconsolidated investee, subject to certain conditions (see Note 9). As of March 29, 2015, the Company has future financing obligations through fiscal 2015 totaling $171.9 million.

Liabilities Associated with Uncertain Tax Positions

Total liabilities associated with uncertain tax positions were $31.1 million and $31.8 million as of March 29, 2015 and December 28, 2014, respectively. As of March 29, 2015, $8.0 million of uncertain tax positions are included in "Accrued liabilities" in the Company's Consolidated Balance Sheets as they are expected to be paid within the next twelve months, and $23.1 million of uncertain tax positions are included in "Other long-term liabilities" in the Company's Consolidated Balance Sheets as they are not expected to be paid within the next twelve months. As of December 28, 2014, total liabilities of $31.8 million associated with uncertain tax positions were included in "Other long-term liabilities" as they were not expected to be paid within the next 12 months. Due to the complexity and uncertainty associated with its tax positions, the Company cannot make a reasonably reliable estimate of the period in which cash settlement, if any, would be made for its liabilities associated with uncertain tax positions in other long-term liabilities.

Indemnifications

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The Company is a party to a variety of agreements under which it may be obligated to indemnify the counterparty with respect to certain matters. Typically, these obligations arise in connection with contracts and license agreements or the sale of assets, under which the Company customarily agrees to hold the other party harmless against losses arising from a breach of warranties, representations and covenants related to such matters as title to assets sold, negligent acts, damage to property, validity of certain intellectual property rights, non-infringement of third-party rights, and certain tax related matters including indemnification to customers under §48(c) solar commercial investment tax credit ("ITC") and Treasury Grant payments under Section 1603 of the American Recovery and Reinvestment Act ("Cash Grant"). In each of these circumstances, payment by the Company is typically subject to the other party making a claim to the Company that is contemplated by and valid under the indemnification provisions of the particular contract, which provisions are typically contract-specific, as well as bringing the claim under the procedures specified in the particular contract. These procedures usually allow the Company to challenge the other party's claims or, in case of breach of intellectual property representations or covenants, to control the defense or settlement of any third party claims brought against the other party. Further, the Company's obligations under these agreements may be limited in terms of activity (typically to replace or correct the products or terminate the agreement with a refund to the other party), duration and/or amounts. In some instances, the Company may have recourse against third parties and/or insurance covering certain payments made by the Company.

In certain limited circumstances the Company has provided indemnification to customers and investors under which the Company is contractually obligated to compensate these parties for losses they may suffer as a result of reductions in benefits received under ITC and Treasury Cash Grant programs. The Company applies for ITC and Cash Grant incentives based on guidance provided by IRS and the Treasury Department, which include assumptions regarding the fair value of the qualified solar power systems, among others.  Certain of the Company’s development agreements, sale-leaseback arrangements, and financing arrangements with investors of its residential lease program, incorporate assumptions regarding the future level of incentives to be received, which in some instances may be claimed directly by its customers and investors. Since the Company cannot determine future revisions to the U.S. Treasury guidelines governing system values or how the IRS will evaluate system values used in claiming ITCs, the Company is unable to reliably estimate the maximum potential future payments that it could have to make under the Company’s contractual investor obligation as of each reporting date.

Defined Benefit Pension Plans

The Company maintains defined benefit pension plans for the majority of its non-U.S. employees. Benefits under these plans are generally based on an employee’s years of service and compensation. Funding requirements are determined on an individual country and plan basis and are subject to local country practices and market circumstances. The funded status of the pension plans, which represents the difference between the benefit obligation and fair value of plan assets, is calculated on a plan-by-plan basis. The benefit obligation and related funded status are determined using assumptions as of the end of each fiscal year. The Company recognizes the overfunded or underfunded status of its pension plans as an asset or liability on its Consolidated Balance Sheets. As of March 29, 2015 and December 28, 2014, the underfunded status of the Company’s pension plans, presented in "Other long-term liabilities" on the Company’s Consolidated Balance Sheets, was $10.8 million and $10.0 million, respectively. The impact of transition assets and obligations and actuarial gains and losses are recorded in "Accumulated other comprehensive loss", and are generally amortized as a component of net periodic cost over the average remaining service period of participating employees. Total other comprehensive loss related to the Company’s pension plans was zero for the three months ended March 29, 2015.

Legal Matters

Tax Benefit Indemnification Litigation

On March 19, 2014, the Company received notice that a lawsuit had been filed by NRG Solar LLC (“NRG”) against SunPower Corporation, Systems, a wholly-owned subsidiary of the Company (“SunPower Systems”), in the Superior Court of Contra Costa County, California.  The complaint asserts that, according to the indemnification provisions in the contract pertaining to SunPower Systems’ sale of a large California solar project to NRG, SunPower Systems owes NRG $75 million in connection with certain tax benefits associated with the project that were approved by the Treasury Department for an amount that was less than expected. The Company does not believe that the facts support NRG’s claim under the operative indemnification provisions and intends to vigorously contest the claim. On May 5, 2014, SunPower Systems filed a demurrer to NRG’s complaint.  The Court sustained the demurrer with leave to amend. NRG filed its amended complaint on September 3, 2014. SunPower Systems filed a demurrer to NRG's amended complaint, which the Court sustained, again, with leave to amend.  NRG filed its second amended complaint on January 13, 2015.  SunPower Systems filed a demurrer to NRG’s second amended complaint, which was overruled, whereupon SunPower Systems filed its answer and also filed a cross-complaint against NRG.  The case currently is pending and no trial date or case schedule has been set yet. The Company is currently

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unable to determine if the resolution of this matter will have a material effect on the Company's consolidated financial statements. 

First Philec Arbitration

On January 28, 2015, an arbitral tribunal of the International Court of Arbitration of the International Chamber of Commerce declared a binding partial award in the matter of an arbitration between First Philippine Electric Corporation ("FPEC") and First Philippine Solar Corporation ("FPSC") against SunPower Philippines Manufacturing, Ltd. ("SPML"), our wholly-owned subsidiary. FPSC is a joint venture of FPEC and SPML for the purpose of slicing silicon wafers from ingots. SPML has not purchased any wafers from FPSC since the third quarter of 2012.

The tribunal found SPML in breach of its obligations under its supply agreement with FPSC, and in breach of its joint venture agreement with FPEC. The tribunal ordered that (i) SPML must purchase FPEC’s interests in FPSC for an aggregate of $30.3 million, subject to adjustment to account for minority interests, and (ii) after completing the purchase of FPEC’s controlling interest in FPSC, to pay FPSC damages in the amount of $25.2 million. SPML’s purchase of FPEC’s interests in FPSC and the subsequent damages payment to FPSC have been suspended pending the parties’ agreement as to legal arrangements required to complete these transactions. On March 18, 2015, the tribunal held a hearing on the issue of the transfer of FPSC shares. The tribunal has not yet issued a ruling on this issue, and has not yet set a date for SPML's purchase of FPEC's interests in FPSC or the subsequent damages payment to FPSC.

As of March 29, 2015, the Company recorded an accrual of $63.0 million related to this matter based on the Company's best estimate of probable loss.

Other Litigation

The Company is also a party to various other litigation matters and claims that arise from time to time in the ordinary course of its business. While the Company believes that the ultimate outcome of such matters will not have a material adverse effect on the Company, their outcomes are not determinable and negative outcomes may adversely affect the Company's financial position, liquidity or results of operations.

Note 9. EQUITY METHOD INVESTMENTS

As of March 29, 2015 and December 28, 2014, the Company's carrying value of its equity method investments totaled $213.1 million and $210.9 million, respectively, and is classified as "Other long-term assets" in its Consolidated Balance Sheets. The Company's share of its earnings (loss) from equity method investments is reflected as "Equity in earnings of unconsolidated investees" in its Consolidated Statements of Operations.

Equity Investment and Joint Venture with AUOSP

In fiscal 2010, the Company, AUO and AU Optronics Corporation, the ultimate parent company of AUO ("AUO Taiwan"), formed the joint venture AUOSP. The Company and AUO each own 50% of the joint venture AUOSP. AUOSP owns a solar cell manufacturing facility in Malaysia and manufactures solar cells and sells them on a "cost-plus" basis to the Company and AUO.

In connection with the joint venture agreement, the Company and AUO also entered into licensing and joint development, supply, and other ancillary transaction agreements. Through the licensing agreement, the Company and AUO licensed to AUOSP, on a non-exclusive, royalty-free basis, certain background intellectual property related to solar cell manufacturing (in the case of the Company), and manufacturing processes (in the case of AUO). Under the seven-year supply agreement with AUOSP, renewable by the Company for one-year periods thereafter, the Company is committed to purchase 80% of AUOSP's total annual output allocated on a monthly basis to the Company. The Company and AUO have the right to reallocate supplies from time to time under a written agreement. In fiscal 2010, the Company and AUOSP entered into an agreement under which the Company will resell to AUOSP polysilicon purchased from a third-party supplier and AUOSP will provide prepayments to the Company related to such polysilicon, which prepayment will then be made by the Company to the third-party supplier.

The Company and AUO are not permitted to transfer any of AUOSP's shares held by them, except to each other. The Company and AUO agreed to each contribute additional amounts through fiscal 2015 amounting to $169.0 million, or such lesser amount as the parties may mutually agree. In addition, if AUOSP, the Company or AUO requests additional equity

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financing to AUOSP, then the Company and AUO will each be required to make additional cash contributions of up to $50.0 million in the aggregate.

The Company has concluded that it is not the primary beneficiary of AUOSP since, although the Company and AUO are both obligated to absorb losses or have the right to receive benefits, the Company alone does not have the power to direct the activities of AUOSP that most significantly impact its economic performance. In making this determination the Company considered the shared power arrangement, including equal board governance for significant decisions, elective appointment, and the fact that both parties contribute to the activities that most significantly impact the joint venture's economic performance. The Company accounts for its investment in AUOSP using the equity method as a result of the shared power arrangement. As of March 29, 2015, the Company's maximum exposure to loss as a result of its equity investment in AUOSP is limited to the carrying value of the investment. As of March 29, 2015 and December 28, 2014, the Company's investment in AUOSP had a carrying value of $194.2 million and $191.7 million, respectively.

Equity Investment in Huaxia CPV (Inner Mongolia) Power Co., Ltd. ("CCPV")

In December 2012, the Company entered into an agreement with Tianjin Zhonghuan Semiconductor Co. Ltd., Inner Mongolia Power Group Co. Ltd. and Hohhot Jinqiao City Development Company Co., Ltd. to form CCPV, a jointly owned entity to manufacture and deploy the Company's C7 Tracker concentrator technology in Inner Mongolia and other regions in China. CCPV is based in Hohhot, Inner Mongolia. The establishment of the entity was subject to approval of the Chinese government, which was received in the fourth quarter of fiscal 2013. In December 2013, the Company made a $16.4 million equity investment in CCPV, for a 25% equity ownership.

The Company has concluded that it is not the primary beneficiary of CCPV since, although the Company is obligated to absorb losses and has the right to receive benefits, the Company alone does not have the power to direct the activities of CCPV that most significantly impact its economic performance. The Company accounts for its investment in CCPV using the equity method since the Company is able to exercise significant influence over CCPV due to its board position.

Equity Investment in Diamond Energy Pty Ltd. ("Diamond Energy")

In October 2012, the Company made a $3.0 million equity investment in Diamond Energy, an alternative energy project developer and clean electricity retailer headquartered in Melbourne, Australia, in exchange for a 25% equity ownership.

The Company has concluded that it is not the primary beneficiary of Diamond Energy since, although the Company is obligated to absorb losses and has the right to receive benefits, the Company alone does not have the power to direct the activities of Diamond that most significantly impact its economic performance. The Company accounts for its investment in Diamond using the equity method since the Company is able to exercise significant influence over Diamond due to its board position.

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Note 10. DEBT AND CREDIT SOURCES

The following table summarizes the Company's outstanding debt on its Consolidated Balance Sheets:

	March 29, 2015								December 28, 2014
(In thousands)	Face Value		Short-term		Long-term		Total		Face Value		Short-term		Long-term		Total
Convertible debt:
0.875% debentures due 2021	$	400,000	$	—	$	395,922	$	395,922	$	400,000	$	—	$	395,475	$	395,475
0.75% debentures due 2018	300,000		—		297,590		297,590		300,000		—		297,401		297,401
4.50% debentures due 2015	—				—		—		249,645		245,325		—		245,325
0.75% debentures due 2027	79		—		79		79		79		—		79		79
IFC mortgage loan	40,000		15,000		24,081		39,081		47,500		14,983		31,492		46,475
CEDA loan	30,000		—		27,479		27,479		30,000		—		27,379		27,379
Quinto Credit Facility	128,841		—		128,841		128,841		61,481		—		61,481		61,481
Other debt1	113,498		2,020		110,661		112,681		91,398		1,963		88,605		90,568
	$	1,012,418	$	17,020	$	984,653	$	1,001,673	$	1,180,103	$	262,271	$	901,912	$	1,164,183

¹  Other debt excludes payments related to capital leases, which are disclosed in Note 8.

As of March 29, 2015, the aggregate future contractual maturities of the Company's outstanding debt, at face value, was as follows:

(In thousands)	Fiscal 2015 (remaining nine months)		Fiscal 2016	Fiscal 2017	Fiscal 2018	Fiscal 2019	Thereafter	Total
Aggregate future maturities of outstanding debt	$	9,074	23,056	23,983	308,531	9,929	637,845	$	1,012,418

Convertible Debt

The following table summarizes the Company's outstanding convertible debt:

	March 29, 2015						December 28, 2014
(In thousands)	Carrying Value		Face Value		Fair Value1		Carrying Value		Face Value		Fair Value1
Convertible debt:
0.875% debentures due 2021	$	395,922	$	400,000	$	399,688	$	395,475	$	400,000	$	358,000
0.75% debentures due 2018	297,590		300,000		422,205		297,401		300,000		366,750
4.50% debentures due 2015	—		—		—		245,325		249,645		294,581
0.75% debentures due 2027	79		79		76		79		79		80
	$	693,591	$	700,079	$	821,969	$	938,280	$	949,724	$	1,019,411

¹  The fair value of the convertible debt was determined using Level 2 inputs based on quarterly market prices as reported by an independent pricing source.

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The Company's outstanding convertible debentures are senior, unsecured obligations of the Company, ranking equally with all existing and future senior unsecured indebtedness of the Company.

0.875% Debentures Due 2021

In June 2014, the Company issued $400.0 million in principal amount of its 0.875% debentures due 2021. Interest is payable semi-annually, beginning on December 1, 2014. Holders may exercise their right to convert the debentures at any time into shares of the Company's common stock at an initial conversion price approximately equal to $48.76 per share, subject to adjustment in certain circumstances. If not earlier repurchased or converted, the 0.875% debentures due 2021 mature on June 1, 2021.

0.75% Debentures Due 2018

In May 2013, the Company issued $300.0 million in principal amount of its 0.75% debentures due 2018. Interest is payable semi-annually, beginning on December 1, 2013. Holders may exercise their right to convert the debentures at any time into shares of the Company's common stock at an initial conversion price approximately equal to $24.95 per share, subject to adjustment in certain circumstances. If not earlier repurchased or converted, the 0.75% debentures due 2018 mature on June 1, 2018.

4.50% Debentures Due 2015

In 2010, the Company issued $250.0 million in principal amount of its 4.50% senior cash convertible debentures ("4.50% debentures due 2015"). Interest was payable semi-annually, beginning on September 15, 2010. The 4.50% debentures due 2015 were convertible only into cash, and not into shares of the Company's common stock (or any other securities) at a conversion price of $22.53 per share. The 4.50% debentures due 2015 matured on March 15, 2015. During March 2015, the Company paid holders an aggregate of $324.3 million in cash in connection with the settlement of the outstanding 4.50% debentures due 2015. No 4.50% debentures due 2015 remained outstanding after the maturity date.

The embedded cash conversion option was a derivative instrument (derivative liability) that was required to be separated from the 4.50% debentures due 2015. The fair value of the derivative liability is classified within "Other long-term liabilities" on the Company's Consolidated Balance Sheets. Changes in the fair value of the derivative liability were reported in the Company's Consolidated Statements of Operations until the 4.50% debentures due 2015 matured in March 2015.

During the three months ended March 29, 2015, the Company recognized a non-cash loss of $52.0 million, recorded in "Other, net" in the Company's Consolidated Statements of Operations to recognize the change in fair value prior to expiration of the embedded conversion option. During the three months ended March 30, 2014, the Company recognized a non-cash loss of $19.1 million, recorded in "Other, net" in the Company's Consolidated Statements of Operations related to the change in fair value of the embedded cash conversion option.

Call Spread Overlay with Respect to 4.50% Debentures

Concurrently with the issuance of the 4.50% debentures due 2015, the Company entered into privately-negotiated convertible debenture hedge transactions (collectively, the "4.50% Bond Hedge") and warrant transactions (collectively, the "4.50% Warrants" and together with the 4.50% Bond Hedge, the “CSO2015”), with certain of the initial purchasers of the 4.50% debentures due 2015 or their affiliates. The CSO2015 transactions represented a call spread overlay with respect to the 4.50% debentures due 2015, whereby the cost of the 4.50% Bond Hedge purchased by the Company to cover the cash outlay upon conversion of the debentures is reduced by the sales prices of the 4.50% Warrants. The transactions effectively reduced the Company's potential payout over the principal amount on the 4.50% debentures due 2015 upon conversion of the 4.50% debentures due 2015.

Under the terms of the 4.50% Bond Hedge, the Company bought options to acquire, at an exercise price of $22.53 per share, subject to customary adjustments for anti-dilution and other events, cash in an amount equal to the market value of up to 11.1 million shares of the Company's common stock. Under the terms of the 4.50% Warrants, the Company sold warrants to acquire, at an exercise price of $24.00 per share, up to 11.1 million shares of the Company's common stock. Each 4.50% Bond Hedge was, and 4.50% Warrant transaction is, a separate transaction, entered into by the Company with each counterparty, and was not part of the terms of the 4.50% debentures due 2015.

The 4.50% Bond Hedge, which was indexed to the Company's common stock, was a derivative instrument that required mark-to-market accounting treatment due to the cash settlement features until the 4.50% Bond Hedge settled in March 2015.

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During March 2015, the Company exercised its rights under the 4.50% Bond Hedge, resulting in a payment to the Company of $74.6 million.

During the three months ended March 29, 2015, the Company recognized a non-cash gain of $52.0 million, recorded in "Other, net" in the Company's Consolidated Statements of Operations to recognize the change in fair value prior to settlement of the 4.50% Bond Hedge. During the three months ended March 30, 2014, the Company recognized a non-cash gain of $19.1 million, recorded in "Other, net" in the Company's Consolidated Statements of Operations related to the change in fair value of the 4.50% Bond Hedge.

4.75% Debentures Due 2014

In May 2009, the Company issued $230.0 million in principal amount of its 4.75% senior convertible debentures ("4.75% debentures due 2014"). Interest on the 4.75% debentures due 2014 was payable semi-annually, beginning October 15, 2009. Holders of the 4.75% debentures due 2014 were able to exercise their right to convert the debentures at any time into shares of the Company's common stock at a conversion price equal to $26.40 per share, subject to adjustment upon certain events. In April 2014, the 4.75% debentures due 2014 matured. During April 2014, the Company issued approximately 7.1 million shares of its common stock to holders that exercised conversion rights prior to their maturity and paid holders an aggregate of $41.7 million in cash in connection with the settlement of the remaining 4.75% debentures. Subsequent to the maturity date, no 4.75% debentures remained outstanding.

Call Spread Overlay with Respect to the 4.75% Debentures

Concurrently with the issuance of the 4.75% debentures due 2014, the Company entered into certain convertible debenture hedge transactions (the "4.75% Bond Hedge") and warrant transactions (the "4.75% Warrants") with affiliates of certain of the underwriters of the 4.75% debentures due 2014 (together, the "CSO2014"), whereby the cost of the 4.75% Bond Hedges purchased by the Company to cover the potential share outlays upon conversion of the debentures was reduced by the sales prices of the 4.75% Warrants. The components of the CSO2014 were not subject to mark-to-market accounting treatment since they could only be settled by issuance of the Company's common stock.

The 4.75% Bond Hedge allowed the Company to purchase up to 8.7 million shares of the Company's common stock, on a net share basis. Each 4.75% Bond Hedge and 4.75%Warrant was a separate transaction, entered into by the Company with each counterparty, and was not part of the terms of the 4.75% debentures due 2014. The exercise prices of the 4.75% Bond Hedge were $26.40 per share of the Company's common stock, subject to customary adjustment for anti-dilution and other events. In February 2014, the parties agreed to unwind the 4.75% Bond Hedge in full for a total cash settlement of $68.8 million, calculated by reference to the weighted price of the Company's common stock on the settlement day, received by the Company.

Under the 4.75% Warrants, the Company sold warrants to acquire up to 8.7 million shares of the Company's common stock at an exercise price of $26.40 per share of the Company's common stock, subject to adjustment for certain anti-dilution and other events. In February 2014, the parties agreed to unwind the 4.75% Warrants in full for a total cash settlement of $81.1 million, calculated by reference to the weighted price of the Company's common stock on the settlement date, paid by the Company.

Other Debt and Credit Sources

Mortgage Loan Agreement with IFC

In May 2010, the Company entered into a mortgage loan agreement with IFC. Under the loan agreement, the Company borrowed $75.0 million and is required to repay the amount borrowed starting two years after the date of borrowing, in 10 equal semi-annual installments. The Company is required to pay interest of LIBOR plus 3% per annum on outstanding borrowings; a front-end fee of 1% on the principal amount of borrowings at the time of borrowing; and a commitment fee of 0.5% per annum on funds available for borrowing and not borrowed. The Company may prepay all or a part of the outstanding principal, subject to a 1% prepayment premium. The Company has pledged certain assets as collateral supporting its repayment obligations (see Note 4). As of both March 29, 2015 and December 28, 2014, the Company had restricted cash and cash equivalents of $9.2 million related to the IFC debt service reserve, which is the amount, as determined by IFC, equal to the aggregate principal and interest due on the next succeeding interest payment date.

Loan Agreement with California Enterprise Development Authority ("CEDA")

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In 2010, the Company borrowed the proceeds of the $30.0 million aggregate principal amount of CEDA's tax-exempt Recovery Zone Facility Revenue Bonds (SunPower Corporation - Headquarters Project) Series 2010 (the "Bonds") maturing April 1, 2031 under a loan agreement with CEDA. The Bonds mature on April 1, 2031, bear interest at a fixed rate of 8.50% through maturity, and include customary covenants and other restrictions on the Company.

Revolving Credit Facility with Credit Agricole

In July 2013, the Company entered into a revolving credit facility (the "revolving credit facility") with Credit Agricole, as administrative agent, and certain financial institutions, under which the Company may borrow up to $250.0 million. On August 26, 2014, the Company entered into an amendment to the revolving credit facility that, among other things, extends the maturity date of the facility from July 3, 2016 to August 26, 2019 (the "Maturity Date"). Amounts borrowed may be repaid and reborrowed until the Maturity Date. The Company may request increases to the available capacity of the revolving credit facility to an aggregate of $300.0 million, subject to the satisfaction of certain conditions. The revolving credit facility includes representations, covenants, and events of default customary for financing transactions of this type.

The revolving credit facility was entered into in conjunction with the delivery by Total S.A. of a guarantee of the Company's obligations under the related facility. On January 31, 2014, as contemplated by the facility, (i) the Company's obligations under the facility became secured by a pledge of certain accounts receivable and inventory; (ii) certain of the Company's subsidiaries entered into guarantees of the facility; and (iii) Total S.A.'s guarantee of the Company's obligations under the facility expired.

After January 31, 2014, the Company is required to pay interest on outstanding borrowings and fees of (a) with respect to any LIBOR rate loan, an amount ranging from 1.50% to 2.00% (depending on the Company's leverage ratio from time to time) plus the LIBOR rate divided by a percentage equal to one minus the stated maximum rate of all reserves required to be maintained against "Eurocurrency liabilities" as specified in Regulation D; (b) with respect to any alternate base rate loan, an amount ranging from 0.50% to 1.00% (depending on the Company's leverage ratio from time to time) plus the greater of (1) the prime rate, (2) the Federal Funds rate plus 0.50%, and (3) the one-month LIBOR rate plus 1%; and (c) a commitment fee ranging from 0.25% to 0.35% (depending on the Company's leverage ratio from time to time) per annum on funds available for borrowing and not borrowed.

As of both March 29, 2015 and December 28, 2014, the Company had no outstanding borrowings under the revolving credit facility.

Project Financing

In order to facilitate the construction and sale of certain solar projects, the Company obtains non-recourse project loans from third-party financial institutions that are contemplated as part of the structure of the sales transaction. The customer, which is not a related party to either the financial institution or the Company, in certain circumstances is permitted to assume the loans at the time that the project entity is sold to the customer. During fiscal 2013, the Company entered into a project loan with a consortium of lenders to facilitate the development of a 10 MW utility and power plant project under construction in Israel. During the first quarter of fiscal 2014, the Company sold the Israeli project. The related loan, amounting to ILS 141.8 million (approximately $40.7 million based on the exchange rate at the time of sale), and accrued and unpaid interest was assumed by the customer. In instances where the debt is issued as a form of pre-established customer financing, subsequent debt assumption is reflected as a financing outflow and operating inflow for purposes of the statement of cash flows to reflect the substance of the assumption as a facilitation of customer financing from a third-party.

On October 17, 2014, the Company, through a wholly-owned subsidiary (the "Quinto Project Company"), entered into an approximately $377.0 million credit facility with Santander Bank, N.A., Mizuho Bank, Ltd. and Credit Agricole (the "Quinto Credit Facility") in connection with the planned construction of the approximately 135 MW Quinto Solar Energy Project, located in Merced County, California (the "Quinto Project"). 

The Quinto Credit Facility includes approximately $318.0 million in construction loan commitments and approximately $59.0 million in letter of credit commitments. Principal and accrued interest on the construction loans are convertible into term loans following the end of the construction period.  The Quinto Credit Facility matures at the end of the seventh year following the term loan conversion, with semi-annual principal payments computed on a 19-year amortization schedule and a balloon payment at maturity. Generally, borrowings under the Quinto Credit Facility will bear interest of (a) with respect to any LIBOR rate loan, either 1.625% or 1.875% (until December 31, 2019 and on December 31, 2019 and thereafter, respectively) plus the LIBOR rate divided by a percentage equal to one minus the stated maximum rate of all reserves required to be maintained

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against "Eurocurrency Liabilities" as specified in Regulation D and (b) with respect to any alternate base rate loan, either 0.625% or 0.875% (until December 31, 2019 and on December 31, 2019 and thereafter, respectively) plus the greater of (1) the prime rate, (2) the Federal Funds rate plus 0.50%, and (3) the one-month LIBOR rate plus 1%. In addition, a commitment fee of 0.50% per annum is charged on funds available for borrowing and not borrowed. All outstanding indebtedness under the Quinto Credit Facility may be voluntarily prepaid in whole or in part without premium or penalty, other than customary breakage costs. We have committed to invest approximately $139 million of equity in the Quinto Project Company, with such investments to be made over time in connection with the completion of project development milestones. The Quinto Credit Facility is secured by the assets of, and equity in, the Quinto Project Company, but is otherwise non-recourse to us and our affiliates. The Quinto Credit Facility contains certain affirmative and negative covenants that limit or restrict, subject to certain exceptions, the ability of the Project Company to do certain things including the incurrence of indebtedness or liens, payment of dividends, merging or consolidating, transactions with affiliates or changing the nature of its business.

Proceeds from the Quinto Credit Facility will be used primarily to fund the construction of the Quinto Project under a turnkey EPC agreement between the Quinto Project Company and SunPower Corporation, Systems, our wholly-owned subsidiary.

As of March 29, 2015 we had outstanding borrowings of $128.8 million under the Quinto Credit Facility.

Other Debt

During fiscal 2015, the Company entered into a long-term non-recourse credit facility to finance a 52 MW utility and power plant in Colorado. The outstanding borrowings under this facility amounted to $22.6 million as of March 29, 2015.

During fiscal 2014, the Company entered into two long-term non-recourse loans to finance solar power systems and leases under its residential lease program. No amounts were drawn down under the loan agreements during the first quarter fiscal 2015. The loans have 17-year terms and as of March 29, 2015, the short-term and long-term balances of the loans were $1.5 million and $79.1 million, respectively.

During fiscal 2013, the Company entered into a long-term non-recourse loan agreement to finance a 5.4 MW utility and power plant operating in Arizona. The outstanding balance of the loan as of March 29, 2015 and December 28, 2014 was $8.5 million and $8.6 million, respectively.

Other debt is further composed of non-recourse project loans in EMEA which are scheduled to mature through 2028.

August 2011 Letter of Credit Facility with Deutsche Bank

In August 2011, the Company entered into a letter of credit facility agreement with Deutsche Bank, as administrative agent, and certain financial institutions. Payment of obligations under the letter of credit facility is guaranteed by Total S.A. pursuant to the Credit Support Agreement (see Note 2). The letter of credit facility provides for the issuance, upon request by the Company, of letters of credit by the issuing banks thereunder in order to support certain obligations of the Company, in an aggregate amount not to exceed $878.0 million for the period from January 1, 2014 through December 31, 2014. Aggregate letter of credit amounts may be increased upon the agreement of the parties but, otherwise, may not exceed (i) $936.0 million for the period from January 1, 2015 through December 31, 2015, and (ii) $1.0 billion for the period from January 1, 2016 through June 28, 2016.

As of March 29, 2015 and December 28, 2014, letters of credit issued and outstanding under the August 2011 letter of credit facility with Deutsche Bank totaled $559.2 million and $654.7 million, respectively.

September 2011 Letter of Credit Facility with Deutsche Bank Trust

In September 2011, the Company entered into a letter of credit facility with Deutsche Bank Trust which provides for the issuance, upon request by the Company, of letters of credit to support obligations of the Company in an aggregate amount not to exceed $200.0 million. Each letter of credit issued under the facility is fully cash-collateralized and the Company has entered into a security agreement with Deutsche Bank Trust, granting them a security interest in a cash collateral account established for this purpose.

As of March 29, 2015 and December 28, 2014, letters of credit issued and outstanding under the Deutsche Bank Trust facility amounted to $19.1 million and $1.6 million, respectively, which were fully collateralized with restricted cash on the Consolidated Balance Sheets.

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Note 11. DERIVATIVE FINANCIAL INSTRUMENTS

The following tables present information about the Company's hedge instruments measured at fair value on a recurring basis as of March 29, 2015 and December 28, 2014, all of which utilize Level 2 inputs under the fair value hierarchy:

(In thousands)	Balance Sheet Classification	March 29, 2015		December 28, 2014
Assets
Derivatives designated as hedging instruments:
Foreign currency option contracts	Prepaid expenses and other current assets	$	2,416	$	2,240
Foreign currency forward exchange contracts	Prepaid expenses and other current assets	125		4
		$	2,541	$	2,244
Derivatives not designated as hedging instruments:
Foreign currency forward exchange contracts	Prepaid expenses and other current assets	9,655		4,774
		$	9,655	$	4,774
Liabilities
Derivatives designated as hedging instruments:
Foreign currency forward exchange contracts	Accrued liabilities	908		—
Interest rate contracts	Other long-term liabilities	1,148		3,712
		$	2,056	$	3,712
Derivatives not designated as hedging instruments:
Foreign currency forward exchange contracts	Accrued liabilities	1,807		1,345
Interest rate contracts	Other long-term liabilities	9,400		—
		$	11,207	$	1,345

	March 29, 2015
							Gross Amounts Not Offset in the Consolidated Balance Sheets, but Have Rights to Offset
(In thousands)	Gross Amounts Recognized		Gross Amounts Offset		Net Amounts Presented		Financial Instruments		Cash Collateral		Net Amounts
Derivative assets	$	12,196	$	—	$	12,196	$	2,715	$	—	$	9,481
Derivative liabilities	$	13,263	$	—	$	13,263	$	2,715	$	—	$	10,548

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	December 28, 2014
							Gross Amounts Not Offset in the Consolidated Balance Sheets, but Have Rights to Offset
(In thousands)	Gross Amounts Recognized		Gross Amounts Offset		Net Amounts Presented		Financial Instruments		Cash Collateral		Net Amounts
Derivative assets	$	7,018	$	—	$	7,018	$	1,345	$	—	$	5,673
Derivative liabilities	$	5,057	$	—	$	5,057	$	1,345	$	—	$	3,712

The following table summarizes the pre-tax amount of unrealized gain or loss recognized in "Accumulated other comprehensive income" ("OCI") in "Stockholders' equity" in the Consolidated Balance Sheets:

	Three Months Ended
(In thousands)	March 29, 2015			March 30, 2014
Derivatives designated as cash flow hedges:
Loss in OCI at the beginning of the period	$	(1,443	)	$	(805	)
Unrealized loss recognized in OCI	(2,708		)	(3		)
Less: Loss (gain) reclassified from OCI to earnings	(1,480		)	388
Net gain (loss) on derivatives	$	(4,188	)	$	385
Gain (loss) in OCI at the end of the period	$	(5,631	)	$	(420	)

The following table summarizes the amount of gain or loss recognized in "Other, net" in the Consolidated Statements of Operations in the three months ended March 29, 2015, and March 30, 2014:

	Three Months Ended
(In thousands)	March 29, 2015			March 30, 2014
Derivatives designated as cash flow hedges:
Gain (loss) recognized in "Other, net" on derivatives (ineffective portion and amount excluded from effectiveness testing)	$	(3,255	)	$	480
Derivatives not designated as hedging instruments:
Gain recognized in "Other, net"	$	7,515		$	1,430

Foreign Currency Exchange Risk

Designated Derivatives Hedging Cash Flow Exposure

The Company's cash flow exposure primarily relates to anticipated third-party foreign currency revenues and expenses and interest rate fluctuations. To protect financial performance, the Company enters into foreign currency forward and option contracts designated as cash flow hedges to hedge certain forecasted revenue transactions denominated in currencies other than their functional currencies.

As of March 29, 2015, the Company had designated outstanding cash flow hedge option contracts and forward contracts with an aggregate notional value of $13.3 million and $51.3 million, respectively. As of December 28, 2014, the Company had designated outstanding cash flow hedge option contracts and forward contracts with an aggregate notional value of $26.6 million and $12.2 million, respectively. The Company designates either gross external or intercompany revenue up to its net economic exposure. These derivatives have a maturity of 12 months or less and consist of foreign currency option and forward contracts. The effective portion of these cash flow hedges is reclassified into revenue when third-party revenue is recognized in the Consolidated Statements of Operations.

Non-Designated Derivatives Hedging Transaction Exposure

Derivatives not designated as hedging instruments consist of forward and option contracts used to hedge re-measurement of foreign currency denominated monetary assets and liabilities primarily for intercompany transactions, receivables from

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customers, and payables to third parties. Changes in exchange rates between the Company's subsidiaries' functional currencies and the currencies in which these assets and liabilities are denominated can create fluctuations in the Company's reported consolidated financial position, results of operations and cash flows. As of March 29, 2015, the Company held option contracts and forward contracts with an aggregate notional value of zero and $93.5 million, respectively, to hedge balance sheet exposure. The maturity dates of these contracts range from December 2014 to March 2015. The Company held option contracts and forward contracts with an aggregate notional value of zero and $122.5 million, respectively, as of December 28, 2014, to hedge balance sheet exposure.

Interest Rate Risk

The Company also enters into interest rate swap agreements to reduce the impact of changes in interest rates on its project specific non-recourse floating rate debt. As of March 29, 2015 and December 28, 2014, the Company had interest rate swap agreements designated as cash flow hedges with an aggregate notional value of $45.5 million and $247.0 million, respectively. These swap agreements allow the Company to effectively convert floating-rate payments into fixed rate payments periodically over the life of the agreements. These derivatives have a maturity of more than 12 months. The effective portion of these cash flow hedges is reclassified into interest expense when the hedged transactions are recognized in the Consolidated Statements of Operations. The Company analyzes its interest rate swaps quarterly to determine if the hedge transaction remains effective or ineffective. The Company may discontinue hedge accounting for interest rate swaps prospectively if certain criteria are no longer met, the interest rate swap is terminated or exercised, or if the Company elects to remove the cash flow hedge designation. If hedge accounting is discontinued, and the forecasted hedged transaction is considered possible to occur, the previously recognized gain or loss on the interest rate swaps will remain in accumulated other comprehensive loss and will be reclassified into earnings during the same period the forecasted hedged transaction affects earnings or is otherwise deemed improbable to occur.

Credit Risk

The Company's option and forward contracts do not contain any credit-risk-related contingent features. The Company is exposed to credit losses in the event of nonperformance by the counterparties to these option and forward contracts. The Company enters into derivative contracts with high-quality financial institutions and limits the amount of credit exposure to any single counterparty. In addition, the Company continuously evaluates the credit standing of its counterparties.

Note 12. INCOME TAXES

In the three months ended March 29, 2015 and March 30, 2014, the Company's income tax provision of $2.4 million and $13.6 million on a loss before income taxes and equity in earnings of unconsolidated investees of $28.9 million and an income before income taxes and equity in earnings of unconsolidated investees of $54.9 million, respectively, was primarily due to projected tax expense in profitable foreign jurisdictions as well as minimum taxes.

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Note 13. NET INCOME (LOSS) PER SHARE

The Company calculates net income (loss) per share by dividing earnings allocated to common stockholders by the weighted average number of common shares outstanding for the period.

Diluted weighted average shares is computed using basic weighted average shares plus any potentially dilutive securities outstanding during the period using the treasury-stock-type method and the if-converted method, except when their effect is anti-dilutive. Potentially dilutive securities include stock options, restricted stock units, the Upfront Warrants held by Total, warrants associated with the CSO2015 and CSO2014, and the outstanding senior convertible debentures.

The following table presents the calculation of basic and diluted net income (loss) per share:

	Three Months Ended
(In thousands, except per share amounts)	March 29, 2015			March 30, 2014
Basic net income per share:
Numerator
Net income (loss) attributable to stockholders	$	(9,581	)	$	65,044
Denominator
Basic weighted-average common shares	132,033			122,196
Basic net income (loss) per share	$	(0.07	)	$	0.53
Diluted net income per share:
Numerator
Net income (loss) attributable to stockholders	(9,581		)	65,044
Add: Interest expense incurred on the 0.75% debentures due 2018, net of tax	—			450
Add: Interest expense incurred on the 4.75% debentures due 2014, net of tax	—			2,185
Net income (loss) available to common stockholders	(9,581		)	67,679
Denominator
Basic weighted-average common shares	132,033			122,196
Effect of dilutive securities:
Stock options	—			108
Restricted stock units	—			6,202
Upfront Warrants (held by Total)	—			7,227
Warrants (under the CSO2015)	—			2,915
Warrants (under the CSO2014)	—			1,048
0.75% debentures due 2018	—			12,026
4.75% debentures due 2014	—			8,712
Dilutive weighted-average common shares	132,033			160,434
Dilutive net income (loss) per share	$	(0.07	)	$	0.42

The Upfront Warrants allow Total to acquire up to 9,531,677 shares of the Company's common stock at an exercise price of $7.8685. Holders of the Warrants under the CSO2015 and CSO2014, may acquire up to 11.1 million and 8.7 million shares, respectively, of the Company's common stock at an exercise price of $24.00 and $26.40, respectively. If the market price per share of the Company's common stock for the period exceeds the established strike price of the respective warrants, they will have a dilutive effect on its diluted net income per share using the treasury-stock method. In February 2014, the CSO2014 was settled, leaving none of the related Warrants outstanding (see Note 10).

Holders of the Company's 0.875% debentures due 2021, 0.75% debentures due 2018, and the 4.75% debentures due 2014 may convert the debentures into shares of the Company's common stock, at the applicable conversion rate, at any time on or prior to maturity. These debentures are included in the calculation of diluted net income per share if they were outstanding during the period presented and if their inclusion is dilutive under the if-converted method. In April 2014, the 4.75%

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debentures matured and were fully settled in both cash and shares of the Company's common stock during the quarter (see Note 10).

Holders of the Company's 4.50% debentures due 2015 could, under certain circumstances at their option and before maturity, convert the debentures into cash, and not into shares of the Company's common stock (or any other securities). Therefore, the 4.50% debentures due 2015 are excluded from the net income per share calculation. In March 2015, the 4.50% debentures due 2015 matured and were settled in cash (see Note 10).

The following is a summary of outstanding anti-dilutive potential common stock that was excluded from income (loss) per diluted share in the following periods:

	Three Months Ended
(In thousands)	March 29, 2015 1	March 30, 2014
Stock options	190	159
Restricted stock units	3,616	464
Upfront Warrants (held by Total)	9,532	—
Warrants (under the CSO2015)	11,096	—
0.75% debentures due 2018	12,026	—
0.875% debentures due 2021	8,203	n/a

¹As a result of the net loss per share for the three months ended March 29, 2015, the inclusion of all potentially dilutive stock options, restricted stock units, and common shares under noted warrants and convertible debt would be anti-dilutive. Therefore, those stock options, restricted stock units and shares were excluded from the computation of the weighted-average shares for diluted net loss per share for such period.

Note 14. STOCK-BASED COMPENSATION

The following table summarizes the consolidated stock-based compensation expense by line item in the Consolidated Statements of Operations:

	Three Months Ended
(In thousands)	March 29, 2015		March 30, 2014
Cost of Residential revenue	$	922	$	994
Cost of Commercial revenue	388		540
Cost of Power Plant revenue	1,256		2,022
Research and development	2,273		1,797
Sales, general and administrative	8,707		9,514
Total stock-based compensation expense	$	13,546	$	14,867

The following table summarizes the consolidated stock-based compensation expense by type of awards:

	Three Months Ended
(In thousands)	March 29, 2015			March 30, 2014
Restricted stock units	14,504			14,876
Change in stock-based compensation capitalized in inventory	(958		)	(9		)
Total stock-based compensation expense	$	13,546		$	14,867

Note 15. SEGMENT AND GEOGRAPHICAL INFORMATION

In the first quarter of fiscal 2015, in connection with a realignment of its internal organizational structure, the Company changed its segment reporting from its Americas, EMEA and APAC Segments to three end-customer segments: (i) Residential Segment, (ii) Commercial Segment and (iii) Power Plant Segment (see Note 1). The Residential and Commercial Segments combined are referred to as Distributed Generation. Reclassifications of prior period segment information have been made to conform to the current period presentation. This change does not affect the Company's previously reported Consolidated Financial Statements.

The following tables present information by end-customer segment including revenue, gross margin, and depreciation and amortization, as well as revenue by geography, based on the destination of the shipments:

	Three Months Ended
(In thousands)	March 29, 2015		March 30, 2014
Revenue
Distributed Generation
Residential	155,324		164,718
Commercial	49,063		76,504
Power Plant	236,484		451,200
Total revenue	440,871		692,422
Cost of revenue
Distributed Generation
Residential	122,772		132,687
Commercial	46,880		64,463
Power Plant	180,401		332,283
Total cost of revenue	350,053		529,433
Gross margin
Distributed Generation
Residential	32,552		32,031
Commercial	2,183		12,041
Power Plant	56,083		118,917
Total gross margin	$	90,818	$	162,989

	Three Months Ended
Depreciation and amortization by segment (in thousands):	March 29, 2015		March 30, 2014
Distributed Generation
Residential	$	10,172	$	6,035
Commercial	$	3,407	$	2,803
Power Plant	$	14,984	$	16,533

The following tables present information by significant customers and categories:

		Three Months Ended
(As a percentage of total revenue)		March 29, 2015		March 30, 2014
Significant Customers:	Business Segment
MidAmerican Energy Holdings Company	Power Plant	33	%	42	%

	Three Months Ended
(As a percentage of total revenue)	March 29, 2015		March 30, 2014
Revenue by geography:
United States	67	%	68	%
Japan	16	%	13	%
Rest of World	17	%	19	%
	100	%	100	%

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A reconciliation of the Company's segment revenue and gross margin to its consolidated financial statements for the three months ended March 29, 2015, and March 30, 2014 is as follows:

	Three Months Ended March 29, 2015
	Revenue						Gross margin
Revenue and Gross margin by segment (in thousands, except percentages):	Residential		Commercial		Power Plant		Residential					Commercial					Power Plant
As reviewed by CODM	$	155,324	$	49,063	$	226,214	$	35,278		22.7	%	$	3,025		6.2	%	$	49,858		22.0	%
Utility and power plant projects	—		—		10,270		—					—					11,251
Stock-based compensation	—		—		—		(922		)			(388		)			(1,256		)
Non-cash interest expense	—		—		—		(220		)			(55		)			(342		)
Other	—		—		—		(1,584		)			(399		)			(3,428		)
GAAP	$	155,324	$	49,063	$	236,484	$	32,552		21.0	%	$	2,183		4.4	%	$	56,083		23.7	%

	Three Months Ended March 30, 2014
	Revenue						Gross margin
Revenue and Gross margin by segment (in thousands, except percentages):	Residential		Commercial		Power Plant		Residential					Commercial					Power Plant
As reviewed by CODM	$	164,718	$	76,504	$	442,491	$	33,213		20.2	%	$	12,675		16.6	%	$	104,749		23.7	%
Utility and power plant projects	—		—		8,709		—					—					16,608
Stock-based compensation	—		—		—		(994		)			(540		)			(2,022		)
Non-cash interest expense	—		—		—		(188		)			(94		)			(418		)
Other	—		—		—		—					—					—
GAAP	$	164,718	$	76,504	$	451,200	$	32,031		19.4	%	$	12,041		15.7	%	$	118,917		26.4	%

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ITEM 2: MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Cautionary Statement Regarding Forward-Looking Statements

You should read the following discussion of our financial condition and results of operations in conjunction with the consolidated financial statements and the notes thereto included elsewhere in this Quarterly Report on Form 10-Q and our Annual Report on Form 10-K for the fiscal year ended December 28, 2014 filed with the Securities and Exchange Commission pursuant to the Securities Exchange Act of 1934, as amended (the “Exchange Act”).

This Quarterly Report on Form 10-Q contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements are statements that do not represent historical facts and the assumptions underlying such statements. We use words such as "anticipate," "believe," "continue," "could," "estimate," "expect," "intend," "may," "plan," "predict," "potential," "will," "would," "should," and similar expressions to identify forward-looking statements. Forward-looking statements in this Quarterly Report on Form 10-Q include, but are not limited to, our plans and expectations regarding future financial results, expected operating results, business strategies, projected costs and cost reduction, development of new products and improvements to our existing products, our manufacturing capacity and manufacturing costs, the adequacy of our agreements with our suppliers, our ability to monetize utility projects, competitive positions, management's plans and objectives for future operations, the sufficiency of our cash and our liquidity, our ability to obtain financing, our ability to comply with debt covenants or cure any defaults, trends in average selling prices, the success of our joint ventures and acquisitions, expected capital expenditures, warranty matters, outcomes of litigation, our exposure to foreign exchange, interest and credit risk, general business and economic conditions in our markets, industry trends, the impact of changes in government incentives, expected restructuring charges, and the likelihood of any impairment of project assets and long-lived assets. These forward-looking statements are based on information available to us as of the date of this Quarterly Report on Form 10-Q and current expectations, forecasts and assumptions and involve a number of risks and uncertainties that could cause actual results to differ materially from those anticipated by these forward-looking statements. Such risks and uncertainties include a variety of factors, some of which are beyond our control. Factors that could cause or contribute to such differences include, but are not limited to, those identified below, those discussed in the section titled “Risk Factors” included in this Quarterly Report on Form 10-Q and our Annual Report on Form 10-K for the fiscal year ended December 28, 2014, and our other filings with the Securities and Exchange Commission ("SEC"). These forward-looking statements should not be relied upon as representing our views as of any subsequent date, and we are under no obligation to, and expressly disclaim any responsibility to, update or alter our forward-looking statements, whether as a result of new information, future events or otherwise.

Our fiscal year ends on the Sunday closest to the end of the applicable calendar year. All references to fiscal periods apply to our fiscal quarter or year, which end on the Sunday closest to the calendar month end.

Recent Developments

8point3 Energy Partners LP

On March 10, 2015, we and First Solar, Inc. ("First Solar" and, together with us, the "Sponsors"), entered into a master formation agreement (the “MFA”) providing for the formation of 8point3 Energy Partners LP ("8point3 Energy Partners"), a joint YieldCo vehicle formed by the Sponsors, and 8point 3 Partners filed a registration statement on Form S-1 (the "S-1") with the SEC for an initial public offering (the "IPO") of Class A shares representing limited partner interests in 8point3 Energy Partners.

8point3 Energy Partners is a growth-oriented limited partnership expected to own, operate, and acquire solar energy generation projects from the Sponsors. The initial project portfolio is expected to include interests in 432 MW of various solar energy projects. The entity also has rights of first offer on interests in an additional 1,136 MW of solar energy projects that are currently contracted or are expected to be contracted before being sold by the Sponsors.

There is no assurance that the IPO will occur. Completion of the IPO is subject to, among other things, the substantially simultaneous closing of the MFA, market conditions, certain regulatory approvals and customary closing conditions as well as other conditions and substantial risks described in "Part II—Item 1A. Risk Factors—The proposed initial public offering of 8point3 Energy Partners LP may not occur on favorable terms or at all, and even if the proposed initial public offering is completed, we may not realize the expected benefits of our YieldCo strategy."

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If the S-1 is declared effective and the IPO is consummated, we expect to contribute a portfolio of selected solar generation assets from our existing portfolio of assets (the “SPWR Contributed Assets”) to 8point3 Energy Partners.

After the proposed IPO, we do not expect to consolidate the operations of 8point3 Energy Partners and its related entities with ours. Instead, we expect to account for our investments in 8point3 Energy Partners and its related entities using the equity method, whereby the book value of our investments is recorded as a non-current asset and our portion of their earnings is recorded in the Consolidated Statements of Operations under the caption "Equity in earnings (loss) of unconsolidated investees."

If the IPO occurs, we expect that the Class A share price of 8point3 Energy Partners could be volatile and there is no assurance that the value of our ownership interests in 8point3 Energy Partners and its related entities will equal or be greater than the book value of SPWR Contributed Assets on our Consolidated Balance Sheet before the IPO, or that we will realize a return on our investment.

In light of the uncertainty regarding the proposed IPO, the following discussion and analysis of our results of operations and liquidity and capital resources focuses on our existing operations and excludes the impact of the potential IPO, and any forward-looking statements contained herein do not take into account the impact of the potential IPO.

Overview    

We are a vertically integrated solar products and solutions company that designs, manufactures and delivers high-performance solar systems worldwide, serving as a one-stop shop for residential, commercial and utility-scale power plant customers. Of all the solar cells available for the mass market, we believe our solar cells have the highest conversion efficiency, a measurement of the amount of sunlight converted by the solar cell into electricity.

Our products and services include Solar Power Components, Solar Power Systems, and Solutions and Services. Solar Power Components consist of solar panels, inverters, and balance of system components including mounting structures, charge controllers, grid interconnection equipment, and other devices. Solar Power Systems include our residential systems, commercial roof and ground mounted systems, and utility and power plant systems including utility-scale solar power system construction and development. Our Solutions and Services include O&M services, a residential leasing program, and "Smart Energy" solutions. We see Smart Energy as a way to harness our world’s energy potential by connecting the most powerful and reliable solar systems on the market with an increasingly vast array of actionable data that can help our customers make smarter decisions about their energy use. Our Smart Energy initiative is designed to add layers of intelligent control to homes, buildings and grids—all personalized through easy-to-use customer interfaces. For more information about the Company's business, please refer to the section titled "Part I. Item 1. Business" in our annual report on Form 10-K for the fiscal year ended December 28, 2014.

Segments Overview

In the first quarter of fiscal 2015, in connection with a realignment of our internal organizational structure, we changed our segment reporting from our Americas, EMEA and APAC Segments to three end-customer segments: (i) Residential Segment, (ii) Commercial Segment and (iii) Power Plant Segment. The Residential and Commercial Segments combined are referred to as Distributed Generation. Historically, the Americas Segment included both North and South America, the EMEA Segment included European countries as well as the Middle East and Africa, and the APAC Segment included all Asia-Pacific countries.

Under the new segmentation, our Residential Segment refers to sales of solar energy solutions to residential end customers through a variety of means, including cash sales and long-term leases directly to end customers, sales to resellers, including our third-party global dealer network, and sales of our O&M services.  Our Commercial Segment refers to sales of solar energy solutions to commercial and public entity end customers through a variety of means, including direct sales of turn-key EPC services, sales to our third-party global dealer network, sales of energy under PPAs, and sales of our O&M services. Our Power Plant Segment refers to our large-scale solar products and systems business, which includes power plant project development and project sales, EPC services for power plant construction, power plant O&M services and component sales for power plants developed by third-parties, sometimes on a multi-year, firm commitment basis. 

Our President and Chief Executive Officer, as the CODM, reviews our business and manages resource allocations and measures performance of our activities among these three end-customer segments.

Unit of Power

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When referring to our solar power systems, our facilities’ manufacturing capacity, and total sales, the unit of electricity in watts for kilowatts ("KW"), megawatts ("MW"), and gigawatts ("GW") is direct current ("dc").

Levelized Cost of Energy ("LCOE")

LCOE is an evaluation of the life-cycle energy cost and life-cycle energy production of an energy producing system. It allows alternative technologies to be compared when different scales of operation, investment or operating time periods exist. LCOE captures capital costs and ongoing system-related costs, along with the amount of electricity produced, and converts them into a common metric. Key drivers for LCOE reduction for photovoltaic products include panel efficiency, capacity factors, reliable system performance, and the life of the system.

Customer Cost of Energy™ ("CCOE™")

Our customers are focused on reducing their overall cost of energy by intelligently integrating solar and other distributed generation, energy efficiency, energy management, and energy storage systems with their existing utility-provided energy. CCOE™ is an evaluation of a customer’s overall cost of energy, taking into account the cost impact of each individual generation source (including the utility), energy storage systems, and energy management systems.  CCOE includes capital costs and ongoing operating costs, along with the amount of electricity produced, stored, saved, or re-sold, and converts all of these variables into a common metric. The CCOE metric allows a customer to compare different portfolios of generation sources, energy storage, and energy management, and to tailor towards optimization.  

Seasonal Trends

Our business is subject to industry-specific seasonal fluctuations including changes in weather patterns and economic incentives, among others. Sales have historically reflected these seasonal trends with the largest percentage of total revenues realized during the last two quarters of a fiscal year. The construction of solar power systems or installation of solar power components and related revenue may decline during cold winter months. In the United States, many customers make purchasing decisions towards the end of the year in order to take advantage of tax credits or for other budgetary reasons.

Fiscal Years

We have a 52-to-53-week fiscal year that ends on the Sunday closest to December 31. Accordingly, every fifth or sixth year will be a 53-week fiscal year. The current fiscal year, fiscal 2015, consists of 53 weeks, including a 14-week fourth fiscal quarter, while fiscal year 2014 consists of 52 weeks. The first quarter of fiscal 2015 ended on March 29, 2015, while the first quarter of fiscal 2014 ended on March 30, 2014. Both the first quarter of fiscal 2015 and fiscal 2014 were 13-week quarters.

Outlook

While remaining focused on our U.S. market, we plan to continue to expand our business in growing and sustainable markets, including Africa, Australia, China, Saudi Arabia, South America, and Turkey. Through our investment in Huaxia CPV (Inner Mongolia) Power Co., Ltd., with partners in China, we plan to manufacture and deploy our C7 Tracker systems in Inner Mongolia and other regions in China. We plan to expand our solar cell manufacturing capacity through the construction of a facility in the Philippines with a planned annual capacity of 350 MW once fully operational, which is expected to occur in fiscal 2016, with initial production expected during fiscal 2015.

We continue to improve our unique, differentiated solar cell and panel technology. Our new residential product line includes our SunPower X-Series Solar Panels with demonstrated average panel efficiencies exceeding 21.5%. We are focused on reducing the cost of our solar panels and systems and are working with our suppliers and partners along all steps of the value chain to reduce costs by improving manufacturing technologies and expanding economies of scale. We continue to emphasize improvement of our solar cell efficiency and LCOE and CCOE performance through enhancement of our existing products, development of new products and reduction of manufacturing cost and complexity in conjunction with our overall cost-control strategies. In fiscal 2014, we produced our first solar cells with over 25% efficiency in the lab and in fiscal 2015, we expect to reach production panel efficiencies of 23% using a simplified, lower cost manufacturing process.

We continue to see significant and increasing opportunities in technologies and capabilities adjacent to our core product offerings that can significantly reduce CCOE, including the integration of energy storage and energy management functionality into our systems, and have made investments to realize those opportunities, including our investment in Tendril Networks, our acquisition of SolarBridge Technologies, and our exclusive agreement with Sunverge Energy. In the fourth quarter of fiscal

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2014, we licensed a data-driven Energy Services Management ("ESM") Platform from Tendril Networks, Inc. to power the development of new Smart Energy applications designed to deliver personalized energy services to our customers. In the first quarter of fiscal 2015, we entered into a strategic partnership with EnerNOC, a leading provider of energy intelligence software, to deploy EnerNOC's Software as a Service ("SaaS") solution to our commercial and power plant customers so they can make intelligent energy choices by addressing how they buy energy, how they use energy and when they use it. We have added advanced module-level control electronics to our portfolio of technology designed to enable longer series strings and significant balance of system components cost reductions in large arrays. We are developing next generation microinverters designed to eliminate the need to mount or assemble additional components on the roof or the side of a building and enable optimization and monitoring at the solar panel level to ensure maximum energy production by the solar system. We also expect to make combined solar and distributed energy storage solutions broadly commercially available to certain customers in the United States and Australia in fiscal 2015 through an exclusive agreement to offer Sunverge SIS energy solutions comprising batteries, power electronics, and multiple energy inputs controlled by software in the cloud.

Projects Sold / Under Contract

The table below presents significant construction and development projects sold or under contract as of March 29, 2015:

Project	Location	Size (MW)	Third-Party Owner / Purchaser	Power Purchase Agreement(s)	Expected Completion of Revenue Recognition2
Solar Star Projects	California, USA	748	MidAmerican Energy Holdings Company	Southern California Edison	2015
Prieska Solar Project1	South Africa	86	Mulilo Prieska PV (RF) Proprietary Limited	Eskom Holdings Soc LTD	2016

¹  We have entered into an EPC agreement and a long-term fixed price O&M agreement with the owners of the Prieska Solar Project.

²  Expected completion of revenue recognition assumes completion of construction in the stated fiscal year.

As of March 29, 2015, an aggregate of approximately $234 million of remaining revenue is expected to be recognized on projects reflected in the table above through the expected completion dates noted. Projects will be removed from the table above in the period in which substantially all of the revenue for such project has been recognized.

Projects with Executed Power Purchase Agreements - Not Sold / Not Under Contract

The table below presents significant construction and development projects with executed power purchase agreements, but not sold or under contract as of March 29, 2015:

Project	Location	Size (MW)	Power Purchase Agreement(s)	Expected Completion of Revenue Recognition1
Quinto Solar Project	California	135	Southern California Edison	2015
Henrietta Solar Project	California	128	PG&E	2016
Hooper Solar Project	Colorado	60	Public Service Company of Colorado	2016

¹  Expected completion of revenue recognition assumes completion of construction and sale of the project in the stated fiscal year.

Our project pipeline extends beyond the projects represented in the tables above. Significant projects with development and milestone activities in progress will be excluded from the table above until an associated power purchase agreement has been executed.

Results of Operations

Revenue

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	Three Months Ended
(In thousands)	March 29, 2015		March 30, 2014		% Change
Distributed Generation
Residential	155,324		164,718		(6)%
Commercial	49,063		76,504		(36)%
Power Plant	236,484		451,200		(48)%
Total revenue	$	440,871	$	692,422	(36)%

Total Revenue:  Our total revenue decreased 36% during the three months ended March 29, 2015 as compared to the three months ended March 30, 2014 primarily due to substantial completion of revenue recognition at the end of fiscal 2014 on certain large-scale solar power systems. A decline in sales of solar power systems and components to residential and commercial customers also contributed to the period-over-period decrease in total revenue.

Concentrations: Sales for the Power Plant Segment represented approximately 54% and 65% of total revenue recognized during the three months ended March 29, 2015 as compared to the three months ended March 30, 2014, respectively. The decrease in percentage of revenue for the Power Plant Segment was primarily driven by the substantial completion of revenue recognition at the end of fiscal 2014 on certain large-scale solar power systems.

The table below represents our significant customers that accounted for greater than 10 percent of total revenue in each of the three months ended March 29, 2015 and March 30, 2014.

		Three Months Ended
Revenue		March 29, 2015		March 30, 2014
Significant Customers:	Business Segment
MidAmerican Energy Holdings Company	Power Plant	33	%	42	%

Residential Revenue: Residential revenue decreased 6% during the three months ended March 29, 2015 as compared to the three months ended March 30, 2014 primarily due to a decline in the sales of solar power components and systems to our residential customers, particularly in Japan, where the decline in currency exchange rate reduced demand for imported goods. The decrease in residential revenue was partially offset by an increase in the number of leases placed in service under our residential leasing program within the United States.

Commercial Revenue:  Commercial revenue decreased 36% during the three months ended March 29, 2015 as compared to the three months ended March 30, 2014 primarily due to the completion of certain commercial solar power system projects across all geographies.

Power Plant Revenue: Power Plant revenue decreased 48% during the three months ended March 29, 2015 as compared to the three months ended March 30, 2014 primarily due to substantial completion of revenue recognition at the end of fiscal 2014 on certain large-scale solar power systems located within the United States.

Cost of Revenue

	Three Months Ended
(In thousands)	March 29, 2015			March 30, 2014			% Change
Distributed Generation
Residential	122,772			132,687			(7	)%
Commercial	46,880			64,463			(27	)%
Power Plant	180,401			332,283			(46	)%
Total cost of revenue	$	350,053		$	529,433		(34	)%
Total cost of revenue as a percentage of revenue	79		%	76		%
Total gross margin percentage	21		%	24		%

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Total Cost of Revenue: Our total cost of revenue decreased 34% during the three months ended March 29, 2015 as compared to the three months ended March 30, 2014, primarily as a result of the substantial completion at the end of fiscal 2014 of recognition of revenue and corresponding costs of certain large-scale solar power systems within the United States.

Gross Margin

	Three Months Ended
(In thousands)	March 29, 2015	March 30, 2014	Change
Distributed Generation
Residential	21%	19%	2%
Commercial	4%	16%	(12)%
Power Plant	24%	26%	(2)%

Residential Gross Margin: Gross margin for our Residential Segment increased 2 percentage points during the three months ended March 29, 2015 as compared to the three months ended March 30, 2014 as a result of increased volume of sales with favorable margins for residential leases, solar power systems and components in the United States, partially offset by lower margins on solar power components resulting from declines in average selling prices in Japan.

Commercial Gross Margin: Gross margin for our Commercial Segment decreased 12 percentage points during the three months ended March 29, 2015 as compared to the three months ended March 30, 2014 as a result of higher than expected costs on and change in scope of certain commercial EPC projects in the United States.

Power Plant Gross Margin: Gross margin for our Power Plant Segment decreased 2 percentage points during the three months ended March 29, 2015 as compared to the three months ended March 30, 2014 primarily as a result of the substantial completion of large-scale solar power systems with favorable margins at the end of fiscal 2014 within the United States.

Research and Development ("R&D")

	Three Months Ended
(In thousands)	March 29, 2015			March 30, 2014			% Change
R&D	$	21,168		$	16,746		26	%
As a percentage of revenue	5		%	2		%

R&D expense increased $4.4 million, or 26%, in the three months ended March 29, 2015 as compared to the three months ended March 30, 2014 primarily due to a $4.1 million increase in labor costs as a result of additional headcount and salary related expenses, as well as an increase in other net expenses such as consulting and outside services supporting programs related to our next generation solar technology. These increases were partially offset by contributions under the R&D Agreement with Total.

Sales, General and Administrative ("SG&A")

	Three Months Ended
(In thousands)	March 29, 2015			March 30, 2014			% Change
SG&A	$	77,214		$	73,928		4	%
As a percentage of revenue	18		%	11		%

SG&A expense increased $3.3 million, or 4%, in the three months ended March 29, 2015 as compared to the three months ended March 30, 2014 primarily due to activities related to the formation of the joint YieldCo vehicle.

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Restructuring Charges

	Three Months Ended
(In thousands)	March 29, 2015			March 30, 2014			% Change
Restructuring charges	$	3,581		$	(461	)	(877	)%
As a percentage of revenue	1		%	—		%

Restructuring charges in the three months ended March 29, 2015 increased $4.0 million as compared to the three months ended March 30, 2014 primarily related to severance charges associated with our November 2014 restructuring plan. Remaining restructuring charges are associated with legacy restructuring plans approved in fiscal 2012 and 2011.

See "Item 1. Financial Statements and Supplementary Data—Notes to Consolidated Financial Statements—Note 7. Restructuring" for further information regarding our restructuring plans.

Other Expense, Net

	Three Months Ended
(In thousands)	March 29, 2015			March 30, 2014			% Change
Interest income	$	556		$	318		75	%
Interest expense	(15,681		)	(19,592		)	(20	)%
Other, net	(2,620		)	1,369			(291	)%
Other expense, net	$	(17,745	)	$	(17,905	)	(1	)%
As a percentage of revenue	(4		)%	(3		)%

Other expense, net decreased $0.2 million, or 1%, in the three months ended March 29, 2015 as compared to the three months ended March 30, 2014 primarily driven by a decrease in interest expense due to the maturity of the 4.75% debentures due 2014, as well as favorable changes in the fair value of foreign currency derivatives and other net expenses.

Income Taxes

	Three Months Ended
(In thousands)	March 29, 2015			March 30, 2014			% Change
Provision for income taxes	$	(2,351	)	$	(13,620	)	(83	)%
As a percentage of revenue	(1		)%	(2		)%

In the three months ended March 29, 2015 and March 30, 2014, our income tax provision of $2.4 million and $13.6 million, respectively, on a loss before income taxes and equity in earnings of unconsolidated investees of $28.9 million and an income before income taxes and equity in earnings of unconsolidated investees of $54.9 million, respectively, was primarily due to projected tax expense in profitable foreign jurisdictions as well as minimum taxes. The decrease in income tax provision for the three months ended March 29, 2015 as compared to the three months ended March 30, 2014 is primarily due to the intra-period allocation of the forecasted annual tax provision.

A material amount of our total revenue is generated from customers located outside of the United States, and a substantial portion of our assets and employees are located outside of the United States. United States income taxes and foreign withholding taxes have not been provided on the undistributed earnings of our non-United States subsidiaries as such earnings are intended to be indefinitely reinvested in operations outside the United States to the extent that such earnings have not been currently or previously subjected to taxation of the United States.

We record a valuation allowance to reduce our United States and France deferred tax assets to the amount that is more likely than not to be realized. In assessing the need for a valuation allowance, we consider historical levels of income, expectations and risks associated with the estimates of future taxable income and ongoing prudent and feasible tax planning strategies. In the event we determine that we would be able to realize additional deferred tax assets in the future in excess of the net recorded amount, or if we subsequently determine that realization of an amount previously recorded is unlikely, we would record an adjustment to the deferred tax asset valuation allowance, which would change income tax in the period of adjustment. As of March 29, 2015, we believe there is insufficient evidence to realize additional deferred tax assets.

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Equity in Earnings of Unconsolidated Investees

	Three Months Ended
(In thousands)	March 29, 2015			March 30, 2014			% Change
Equity in earnings of unconsolidated investees	$	2,191		$	1,783		23	%
As a percentage of revenue	—		%	—		%

In the three months ended March 29, 2015 and March 30, 2014, our equity in earnings of unconsolidated investees was a net gain of $2.2 million, and $1.8 million, respectively, primarily due to increased activities at our AUOSP joint venture.

Net Income

	Three Months Ended
(In thousands)	March 29, 2015			March 30, 2014		% Change
Net income (loss)	$	(29,050	)	$	43,034	(168	)%

Net income decreased $72.1 million in the three months ended March 29, 2015 as compared to three months ended March 30, 2014. The decrease in net income was primarily driven by a $72.2 million decrease in gross margin, primarily due to the substantial completion of revenue recognition on various large-scale solar power systems at the end of fiscal 2014 and an $11.8 million increase in operating expenses due to increased headcount, activities related to the formation of the joint YieldCo vehicle and charges related to the November 2014 restructuring plan, but was partially offset by an $11.3 million decrease in income tax provision primarily due to the intra-period allocation of the forecasted annual tax provision.

Information about other significant variances in our results of operations is described above.

Net Loss Attributable to Noncontrolling Interests and Redeemable Noncontrolling Interests

	Three Months Ended
(In thousands)	March 29, 2015		March 30, 2014		% Change
Net loss attributable to noncontrolling interests and redeemable noncontrolling interests	$	19,469	$	22,010	(12	)%

We have entered into facilities with third-party investors under which the parties invest in entities that hold SunPower solar power systems and leases with residential customers. We determined that we hold controlling interests in these less-than-wholly-owned entities and have fully consolidated these entities as a result. We apply the hypothetical liquidation value method in allocating recorded net income (loss) to each investor based on the change in the reporting period, of the amount of net assets of the entity to which each investor would be entitled to under the governing contractual arrangements in a liquidation scenario.

In the three months ended March 29, 2015 and March 30, 2014, we attributed $19.5 million and $22.0 million, respectively, of net losses primarily to the third-party investors as a result of allocating certain assets, including tax credits and accelerated tax depreciation benefits, to the investors. The $2.5 million decrease in net loss attributable to noncontrolling interests and redeemable noncontrolling interests is primarily due to the lower fair market value of leases placed in service.

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Liquidity and Capital Resources

Cash Flows

A summary of the sources and uses of cash and cash equivalents is as follows:

	Three Months Ended
(In thousands)	March 29, 2015			March 30, 2014
Net cash provided by (used in) operating activities	$	(113,408	)	$	50,472
Net cash used in investing activities	$	(63,321	)	$	(31,095	)
Net cash used in financing activities	$	(172,406	)	$	(26,960	)

Operating Activities

Net cash used in operating activities in the three months ended March 29, 2015 was $113.4 million and was primarily the result of: (i) a net loss of $29.1 million; (ii) $108.1 million increase in inventories driven by project assets for construction of solar power systems for Commercial and Power Plant projects in North America and purchases of polysilicon; (iii) $93.2 million increase in project assets primarily related to our Quinto Solar Energy Project; (iv) $51.8 million decrease in accounts payable and other accrued liabilities; (v) $29.2 million increase in long-term financing receivables related to our net investment in sales-type leases; (vi) $25.1 million increase in prepaid expenses and other assets driven by an increase in deferred costs related to the Solar Star Projects; (vii) $10.1 million decrease in customer advances; (viii) $5.1 million net change in deferred income taxes and other liabilities; and (ix) $2.2 million increase in equity in earnings of unconsolidated investees. This was partially offset by: (i) $141.0 million decrease in costs and estimated earnings in excess of billings driven by a decrease related to the Solar Star Projects; (ii) $32.7 million decrease in accounts receivable; (iii) other net non-cash charges of $47.1 million related to depreciation, non-cash interest charges and stock-based compensation; (iv) $13.9 million decrease in advance to suppliers; and (v) $5.6 million increase in billings in excess of costs and estimated earnings driven by increase related to the Solar Star Projects.

Net cash provided by operating activities in the three months ended March 30, 2014 was $50.5 million and was primarily the result of: (i) a net income of $43.0 million; (ii) a $93.6 million decrease in accounts receivable; (iii) a $26.5 million decrease in inventory and project assets for construction of solar power systems for Commercial and Power Plant projects in North America; and (iv) other net non-cash charges of $61.6 million primarily related to depreciation, non-cash interest charges, and stock based compensation. This was partially offset by a $117.0 million decrease in billings in excess of costs and estimated earnings and a $57.3 million net increase in other assets, net of other liabilities.

Investing Activities

Net cash used in investing activities in the three months ended March 29, 2015 was $63.3 million, which included: (i) $44.0 million related to capital expenditures primarily related to the expansion of our solar cell manufacturing capacity and costs associated with solar power systems, leased and to be leased; (ii) an $18.8 million increase in restricted cash; and (iii) $0.5 million increase in intangibles.

Net cash used in investing activities in the three months ended March 30, 2014 was $31.1 million, which included: (i) $15.0 million related to costs associated with solar power systems leased and to be leased; (ii) $8.8 million of capital expenditures primarily associated with improvements to our current generation solar cell manufacturing technology; (iii) $5.0 million paid for investments in unconsolidated investees; and (iv) a $2.3 million increase in restricted cash.

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Financing Activities

Net cash used in financing activities in the three months ended March 29, 2015 was $172.4 million, which included: (i) $249.6 million in net payment to settle the 4.50% debentures due 2015 and the 4.50% Bond Hedge (defined below); (ii) $38.7 million in purchases of stock for tax withholding obligations on vested restricted stock; (iii) $9.9 million of net repayments of residential lease financing and sale-leaseback financing; and (iv) $7.9 million in repayments of bank loans, project loans and other debt. This was partially offset by: (i) $90.0 million in proceeds from issuance of project loans; and (ii) $43.6 million of net contributions from noncontrolling interests and redeemable noncontrolling interests related to the residential lease program.

Net cash used in financing activities in the three months ended March 30, 2014 was $27.0 million, which included: (i) $43.5 million in purchases of stock for tax withholding obligations on vested restricted stock; (ii) $40.7 million assumption of project by customers; (iii) a $12.2 million net payment to settle the 4.75% Bond Hedge and 4.75% Warrants; and (iv) $8.0 million of repayments of residential lease and sale-leaseback financing. This was partially offset by: (i) $39.1 million of proceeds from issuance of non-recourse debt financing; (ii) $30.6 million in contributions from noncontrolling interests; and (iii) $17 million in proceeds from sale-leaseback financing arrangements.

Debt and Credit Sources

Convertible Debentures

As of March 29, 2015, an aggregate principal amount of $400.0 million of the 0.875% debentures due 2021 remained issued and outstanding. The 0.875% debentures due 2021 were issued on June 11, 2014. Interest on the 0.875% debentures due 2021 is payable on June 1 and December 1 of each year. Holders are able to exercise their right to convert the debentures at any time into shares of our common stock at an initial conversion price approximately equal to $48.76 per share, subject to adjustment in certain circumstances. If not earlier repurchased or converted, the 0.875% debentures due 2021 mature on June 1, 2021. Holders may require us to repurchase all or a portion of their 0.875% debentures due 2021, upon a fundamental change, as described in the related indenture, at a cash repurchase price equal to 100% of the principal amount plus accrued and unpaid interest. If we undergo a non-stock change of control fundamental change, as described in the related indenture, the 0.875% debentures due 2021 will be subject to redemption at our option, in whole but not in part, for a period of 30 calendar days following a repurchase date relating to the non-stock change of control fundamental change, at a cash redemption price equal to 100% of the principal amount plus accrued and unpaid interest. Otherwise, the 0.875% debentures due 2021 are not redeemable at our option prior to the maturity date. In the event of certain events of default, Wells Fargo Bank, National Association ("Wells Fargo"), the trustee, or the holders of a specified amount of then-outstanding 0.875% debentures due 2021 will have the right to declare all amounts then outstanding due and payable.

As of March 29, 2015, an aggregate principal amount of $300.0 million of the 0.75% debentures due 2018 remained issued and outstanding. The 0.75% debentures due 2018 were issued on May 29, 2013. Interest on the 0.75% debentures due 2018 is payable on June 1 and December 1 of each year. Holders are able to exercise their right to convert the debentures at any time into shares of our common stock at an initial conversion price equal to $24.95 per share. The applicable conversion rate may be subject to adjustment in certain circumstances. If not earlier converted, the 0.75% debentures due 2018 mature on June 1, 2018. Holders may require us to repurchase all or a portion of their 0.75% debentures due 2018, upon a fundamental change, as described in the related indenture, at a cash repurchase price equal to 100% of the principal amount plus accrued and unpaid interest. If we undergo a non-stock change of control fundamental change, as described in the related indenture, the 0.75% debentures due 2018 will be subject to redemption at our option, in whole but not in part, for a period of 30 calendar days following a repurchase date relating to the non-stock change of control fundamental change, at a cash redemption price equal to 100% of the principal amount plus accrued and unpaid interest. Otherwise, the 0.75% debentures due 2018 are not redeemable at our option prior to the maturity date. In the event of certain events of default, Wells Fargo, the trustee, or the holders of a specified amount of then-outstanding 0.75% debentures due 2018 will have the right to declare all amounts then outstanding due and payable.

For more information, please see "Part I. Item 1A. Risk Factors-Risks Related to our Debt and Equity Securities-Conversion of our outstanding 0.75% debentures, 0.875% debentures, our warrants related to our outstanding 4.50% debentures, and future substantial issuances or dispositions of our common stock or other securities, could dilute ownership and earnings per share or cause the market price of our stock to decrease" in our annual report on Form 10-K for the fiscal year ended December 28, 2014.

Mortgage Loan Agreement with IFC

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On May 6, 2010, we entered into a mortgage loan agreement with IFC. Under the loan agreement, we borrowed $75.0 million and are required to repay the amount borrowed starting two years after the date of borrowing, in 10 equal semiannual installments over the following 5 years. We are required to pay interest of LIBOR plus 3% per annum on outstanding borrowings; a front-end fee of 1% on the principal amount of borrowings at the time of borrowing; and a commitment fee of 0.5% per annum on funds available for borrowing and not borrowed. We may prepay all or a part of the outstanding principal, subject to a 1% prepayment premium. We have pledged certain assets as collateral supporting repayment obligations.

As of March 29, 2015, we had $40.0 million outstanding under the mortgage loan agreement. Additionally, in accordance with the terms of the mortgage loan agreement, we are required to establish a debt service reserve account which shall contain the amount, as determined by IFC, equal to the aggregate principal and interest due on the next succeeding interest payment date after such date. As of March 29, 2015, we had restricted cash and cash equivalents of $9.2 million related to the IFC debt service reserve.

Loan Agreement with California Enterprise Development Authority ("CEDA")

On December 29, 2010, we borrowed from CEDA the proceeds of the $30.0 million aggregate principal amount of CEDA's tax-exempt Recovery Zone Facility Revenue Bonds (SunPower Corporation - Headquarters Project) Series 2010 (the "Bonds") maturing April 1, 2031 under a loan agreement with CEDA. Certain of our obligations under the loan agreement were contained in a promissory note dated December 29, 2010 issued by us to CEDA, which assigned the promissory note, along with all right, title and interest in the loan agreement, to Wells Fargo, as trustee, with respect to the Bonds for the benefit of the holders of the Bonds. The Bonds bear interest at a fixed-rate of 8.50% per annum.

As of March 29, 2015, the $30.0 million aggregate principal amount of the Bonds was classified as "Long-term debt" in our Consolidated Balance Sheets.

Revolving Credit Facility with Credit Agricole

On July 3, 2013, we entered into a revolving credit agreement with Credit Agricole, as administrative agent, and certain financial institutions ("the revolving credit facility"), under which we may borrow up to $250.0 million. On August 26, 2014, we entered into an amendment to the revolving credit facility that extends, among other things, the maturity date of the facility from July 3, 2016 to August 26, 2019 (the "Maturity Date"). Amounts borrowed may be repaid and reborrowed until the Maturity Date. The revolving credit facility allows us to request increases to the available capacity of the revolving credit facility to an aggregate of $300.0 million, subject to the satisfaction of certain conditions. The revolving credit facility includes representations, covenants, and events of default customary for financing transactions of this type. The revolving credit facility was entered into in conjunction with the delivery by Total S.A. of a guarantee of our obligations under the facility. On January 31, 2014, (i) our obligations under the revolving credit facility became secured by a pledge of certain accounts receivable and inventory, (ii) certain of our subsidiaries entered into guaranties of the revolving credit facility, and (iii) Total S.A.'s guarantee of our obligations under the revolving credit facility expired (collectively, the "Restructuring").

We are required to pay interest on outstanding borrowings under the facility and fees of (a) with respect to any LIBOR rate loan, an amount ranging from 1.50% to 2.00% (depending on our leverage ratio from time to time) plus the LIBOR rate divided by a percentage equal to one minus the stated maximum rate of all reserves required to be maintained against "Eurocurrency liabilities" as specified in Regulation D; (b) with respect to any alternate base rate loan, an amount ranging from 0.50% to 1.00% (depending on our leverage ratio from time to time) plus the greater of (1) the prime rate, (2) the Federal Funds rate plus 0.50%, and (3) the one-month LIBOR rate plus 1%; and (c) a commitment fee ranging from 0.25% to 0.35% (depending on our leverage ratio from time to time) per annum on funds available for borrowing and not borrowed.

As of March 29, 2015, we had no outstanding borrowings under the revolving credit facility.

August 2011 Letter of Credit Facility with Deutsche Bank

On August 9, 2011, we entered into a letter of credit facility agreement with Deutsche Bank, as issuing bank and as administrative agent, and certain financial institutions. Payment of obligations under the letter of credit facility is guaranteed by Total S.A. pursuant to the Credit Support Agreement between us and Total S.A. The letter of credit facility provides for the issuance, upon our request, of letters of credit by the issuing banks thereunder in order to support certain of our obligations, in an aggregate amount not to exceed $878.0 million for the period from January 1, 2014 through December 31, 2014. Aggregate letter of credit amounts may be increased upon the agreement of the parties but, otherwise, may not exceed (i) $936.0 million for the period from January 1, 2015 through December 31, 2015, and (ii) $1.0 billion for the period from January 1, 2016 through June 28, 2016. Each letter of credit issued under the letter of credit facility must have an expiration date no later than

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the second anniversary of the issuance of that letter of credit, provided that up to 15% of the outstanding value of the letters of credit may have an expiration date of between two and three years from the date of issuance.

As of March 29, 2015, letters of credit issued under the August 2011 letter of credit facility with Deutsche Bank totaled $559.2 million.

September 2011 Letter of Credit Facility with Deutsche Bank and Deutsche Bank Trust Company Americas (together, "Deutsche Bank Trust")

On September 27, 2011, we entered into a letter of credit facility with Deutsche Bank Trust which provides for the issuance, upon request by us, of letters of credit to support our obligations in an aggregate amount not to exceed $200.0 million. Each letter of credit issued under the facility is fully cash-collateralized and we have entered into a security agreement with Deutsche Bank Trust, granting them a security interest in a cash collateral account established for this purpose.

As of March 29, 2015 letters of credit issued under the Deutsche Bank Trust facility amounted to $19.1 million, which were fully collateralized with restricted cash as classified on the Consolidated Balance Sheets.

Project Debt

On October 17, 2014, we, through a wholly-owned subsidiary (the "Project Company"), entered into an approximately $377.0 million credit facility with Santander Bank, N.A., Mizuho Bank, Ltd. and Credit Agricole (the "Quinto Credit Facility") in connection with the planned construction of the approximately 135 MW Quinto Solar Energy Project, located in Merced County, California (the "Quinto Project"). 

 The Quinto Credit Facility includes approximately $318.0 million in construction loan commitments and approximately $59.0 million in letter of credit commitments. Principal and accrued interest on the construction loans are convertible into term loans following the end of the construction period.  The Quinto Credit Facility matures at the end of the seventh year following the term loan conversion, with semi-annual principal payments computed on a 19-year amortization schedule and a balloon payment at maturity. Generally, borrowings under the Quinto Credit Facility will bear interest of (a) with respect to any LIBOR rate loan, either 1.625% or 1.875% (until December 31, 2019 and on December 31, 2019 and thereafter, respectively) plus the LIBOR rate divided by a percentage equal to one minus the stated maximum rate of all reserves required to be maintained against "Eurocurrency Liabilities" as specified in Regulation D and (b) with respect to any alternate base rate loan, either 0.625% or 0.875% (until December 31, 2019 and on December 31, 2019 and thereafter, respectively) plus the greater of (1) the prime rate, (2) the Federal Funds rate plus 0.50%, and (3) the one-month LIBOR rate plus 1%. In addition, a commitment fee of 0.50% per annum is charged on funds available for borrowing and not borrowed. All outstanding indebtedness under the Quinto Credit Facility may be voluntarily prepaid in whole or in part without premium or penalty, other than customary breakage costs. We have committed to invest approximately $139 million of equity in the Quinto Project Company, with such investments to be made over time in connection with the completion of project development milestones. The Quinto Credit Facility is secured by the assets of, and equity in, the Project Company, but is otherwise non-recourse to us and our affiliates. The Quinto Credit Facility contains certain affirmative and negative covenants that limit or restrict, subject to certain exceptions, the ability of the Project Company to do certain things including the incurrence of indebtedness or liens, payment of dividends, merging or consolidating, transactions with affiliates or changing the nature of its business.

Proceeds from the Quinto Credit Facility will be used primarily to fund the construction of the Quinto Project under a turnkey EPC agreement between the Project Company and SunPower Corporation, Systems, our wholly-owned subsidiary.

As of March 29, 2015 we had outstanding borrowings of $128.8 million under the Quinto Credit Facility.

Liquidity

As of March 29, 2015, we had unrestricted cash and cash equivalents of $601.6 million as compared to $956.2 million as of December 28, 2014. Our cash balances are held in numerous locations throughout the world and as of March 29, 2015, we had approximately $189.6 million held outside of the United States. This offshore cash is used to fund operations of our business in the Europe and Asia Pacific regions as well as non-U.S. manufacturing operations, which require local payment for product materials and other expenses.  The amounts held outside of the United States represent the earnings of our foreign subsidiaries which, if repatriated to the United States under current law, would be subject to United States federal and state tax less applicable foreign tax credits. Repatriation of earnings that have not been subjected to U.S. or foreign withholding tax and

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that have been indefinitely reinvested outside the U.S. could result in additional United States federal income tax or foreign withholding tax payments in future years.

On July 5, 2010, we formed AUP SunPower Sdn. Bhd. ("AUOSP"), our joint venture with AU Optronics Singapore Pte. Ltd. ("AUO"). Under the terms of the joint venture agreement, we and AUO each own 50% of AUOSP. We are each obligated to provide additional funding to AUOSP in the future. Under the joint venture agreement, each shareholder agreed to contribute additional amounts to the joint venture through 2015 amounting to $169.0 million, or such lesser amount as the parties may mutually agree (see the Contractual Obligations table below). In addition, if AUOSP, or either shareholder requests additional equity financing to AUOSP, then the shareholders will each be required to make additional cash contributions of up to $50.0 million in the aggregate. See also "Part I. Item 1A. Risk Factors—Risks Related to Our Operations—If we experience interruptions in the operation of our solar cell production lines, or we are not successful in operating our joint venture AUOSP, our revenue and results of operations may be materially and adversely affected" in our Annual Report on Form 10-K for the fiscal year ended December 28, 2014.

We expect total capital expenditures related to purchases of property, plant and equipment in the range of $300 million to $350 million in fiscal 2015 in order to increase our manufacturing capacity, improve our current and next generation solar cell manufacturing technology, and other projects. In addition, we expect to invest a significant amount of capital to develop solar power systems and plants for sale to customers. The development of solar power plants can require long periods of time and substantial initial investments. Our efforts in this area may consist of all stages of development, including land acquisition, permitting, financing, construction, operation and the eventual sale of the projects. We often choose to bear the costs of such efforts prior to the final sale to a customer, which involves significant upfront investments of resources (including, for example, large transmission deposits or other payments, which may be non-refundable), land acquisition, permitting, legal and other costs, and in some cases the actual costs of constructing a project, in advance of the signing of PPAs and EPC contracts and the receipt of any revenue, much of which is not recognized for several additional months or years following contract signing. Any delays in disposition of one or more projects could have a negative impact on our liquidity.

Certain of our customers also require performance bonds issued by a bonding agency or letters of credit issued by financial institutions, which are returned to us upon satisfaction of contractual requirements. If there is a contractual dispute with the customer, the customer may withhold the security or make a draw under such security, which could have an adverse impact on our liquidity. Obtaining letters of credit may require adequate collateral. All letters of credit issued under our August 2011 Deutsche Bank facility are guaranteed by Total S.A. pursuant to the Credit Support Agreement. Our September 2011 letter of credit facility with Deutsche Bank Trust is fully collateralized by restricted cash, which reduces the amount of cash available for operations. As of March 29, 2015, letters of credit issued under the Deutsche Bank Trust facility amounted to $19.1 million which were fully collateralized with restricted cash on the Consolidated Balance Sheets.

In fiscal 2011, we launched our residential lease program with dealers in the United States, in partnership with a third-party financial institution, which allows customers to obtain SunPower systems under lease agreements up to 20 years, subject to financing availability. We have entered into facilities with financial institutions that will provide financing to support additional residential solar lease projects. Under the terms of certain programs we receive upfront payments for periods under which the third-party financial institution has agreed to assume collection risk for certain residential leases. Changes in the amount or timing of upfront payments received from the financial institutions may have an impact on our cash position within the next twelve months. The normal collection of monthly rent payments for leases placed in service is not expected to have a material impact on our cash position within the next twelve months. We have entered into multiple facilities with third-party investors under which both parties will invest in entities that hold SunPower solar power systems and leases with residential customers. We determined that we hold a controlling interest in these less-than-wholly-owned entities and have fully consolidated these entities as a result (see "Item 8. Financial Statements and Supplementary Data—Notes to Consolidated Financial Statements—Note 5. Leasing"). As of March 29, 2015, we received $246.6 million in contributions from investors under the related facility agreements. Additionally, during fiscal 2014, we entered into two long-term non-recourse loans to finance solar power systems and leases under our residential lease program. The loans have a 17-year term. As of March 29, 2015, the short-term and long-term balances of the loans were $1.5 million and $79.1 million, respectively. We are actively arranging additional third-party financing for our residential lease program; however, the credit markets are unpredictable, and if they become challenging, we may be unable to arrange additional financing partners for our residential lease program in future periods, which could have a negative impact on our sales. In the unlikely event that we enter into a material number of additional leases without promptly obtaining corresponding third-party financing, our cash and working capital could be negatively affected.

We believe that our current cash, cash equivalents and cash expected to be generated from operations will be sufficient to meet our working capital and fund our committed capital expenditures over the next 12 months, including the development and construction of solar power systems and plants. We are able to supplement this short-term liquidity, if necessary, with broad

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access to capital markets and credit facilities, including non-recourse debt, made available by various domestic and foreign financial institutions. For example, we have $250 million available to us under our revolving credit facility with Credit Agricole. However, there can be no assurance that our liquidity will be adequate over time. A significant portion of our revenue is generated from a limited number of customers and large projects and our inability to execute these projects, or to collect from these customers or for these projects, would have a significant negative impact on our business. Our capital expenditures and use of working capital may be greater than we expect if we decide to make additional investments in the development and construction of solar power plants and sales of power plants and associated cash proceeds are delayed, or if we decide to accelerate increases in our manufacturing capacity internally or through capital contributions to joint ventures. We require project financing in connection with the construction of solar power plants, which financing may not be available on terms acceptable to us. In addition, we could in the future make additional investments in our joint ventures or guarantee certain financial obligations of our joint ventures, which could reduce our cash flows, increase our indebtedness and expose us to the credit risk of our joint ventures. See also "Risks Related to Our Sales Channels—A limited number of customers and large projects are expected to continue to comprise a significant portion of our revenues and any decrease in revenues from those customers or projects, payment of liquidated damages, or an increase in related expenses, could have a material adverse effect on our business, results of operations and financial condition," and "Risks Related to Our Liquidity—We may be unable to generate sufficient cash flows or obtain access to external financing necessary to fund our operations and make adequate capital investments as planned due to the general economic environment and the continued market pressure driving down the average selling prices of our solar power products, among other factors" in "Part I. Item 1A. Risk Factors" in our Annual Report on Form 10-K for the fiscal year ended December 28, 2014.

As of March 29, 2015, we have $250.0 million available to us under our revolving credit facility with Credit Agricole and may request increases to the available capacity of the revolving credit facility to an aggregate of $300.0 million, subject to the satisfaction of certain conditions. Proceeds from our revolving credit facility with Credit Agricole may be used for general corporate purposes. However, there are no assurances that we will have sufficient available cash to repay our indebtedness or we will be able to refinance such indebtedness on similar terms to the expiring indebtedness. If our capital resources are insufficient to satisfy our liquidity requirements, we may seek to sell additional equity securities or debt securities or obtain other debt financing. The current economic environment, however, could limit our ability to raise capital by issuing new equity or debt securities on acceptable terms, and lenders may be unwilling to lend funds on acceptable terms that would be required to supplement cash flows to support operations. The sale of additional equity securities or convertible debt securities would result in additional dilution to our stockholders (and potential for further dilution upon the exercise of warrants or the conversion of convertible debt) and may not be available on favorable terms or at all, particularly in light of the current conditions in the financial and credit markets. Additional debt would result in increased expenses and would likely impose new restrictive covenants which may be similar or different than those restrictions contained in the covenants under our current loan agreements and debentures. In addition, financing arrangements, including project financing for our solar power plants and letters of credit facilities, may not be available to us, or may not be available in amounts or on terms acceptable to us.

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Contractual Obligations

The following table summarizes our contractual obligations as of March 29, 2015:

			Payments Due by Fiscal Period
(In thousands)	Total		2015 (remaining nine months)		2016-2017		2018-2019		Beyond 2019
Convertible debt, including interest1	$	728,784	$	4,392	$	11,500	$	307,944	$	404,948
IFC mortgage loan, including interest2	41,549		8,082		30,964		2,503		—
CEDA loan, including interest3	70,801		1,913		5,100		5,100		58,688
Quinto credit facility, including interest	150,956		3,450		18,784		13,654		115,068
Other debt, including interest4	177,776		6,578		17,337		18,344		135,517
Future financing commitments5	171,890		171,890		—		—		—
Operating lease commitments6	145,858		13,381		29,499		26,477		76,501
Sale-leaseback financing7	99,381		6,358		13,977		13,184		65,862
Capital lease commitments8	6,416		944		2,081		1,477		1,914
Non-cancellable purchase orders9	203,191		203,191		—		—		—
Purchase commitments under agreements10	1,627,869		443,424		661,722		357,876		164,847
Total	$	3,424,471	$	863,603	$	790,964	$	746,559	$	1,023,345

¹  Convertible debt, including interest, relates to the aggregate of $700.1 million in outstanding principal amount of our senior convertible debentures on March 29, 2015. For the purpose of the table above, we assume that all holders of the outstanding debentures will hold the debentures through the date of maturity, and upon conversion, the values of the senior convertible debentures will be equal to the aggregate principal amount with no premiums.

²  IFC mortgage loan, including interest, relates to the $40.0 million borrowed as of March 29, 2015. Under the loan agreement, we are required to repay the amount borrowed, starting 2 years after the date of borrowing, in 10 equal semiannual installments over the following 5 years. We are required to pay interest of LIBOR plus 3% per annum on outstanding borrowings; a front-end fee of 1% on the principal amount of borrowings at the time of borrowing; and a commitment fee of 0.5% per annum on funds available for borrowing and not borrowed.

³  CEDA loan, including interest, relates to the proceeds of the $30.0 million aggregate principal amount of the Bonds. The Bonds mature on April 1, 2031 and bear interest at a fixed rate of 8.50% through maturity.

⁴  Other debt, including interest, primarily relates to non-recourse finance projects and solar power systems and leases under our residential lease program as described in "Item 1. Financial Statements—Notes to Consolidated Financial Statements—Note 8. Commitments and Contingencies."

⁵  We and AUO agreed in the joint venture agreement to contribute additional amounts to AUOSP through 2014 amounting to $169.0 million by each shareholder, or such lesser amount as the parties may mutually agree. Further, in connection with a purchase agreement with a non-public company we will be required to provide additional financing to such party of up to $2.9 million, subject to certain conditions.

⁶  Operating lease commitments primarily relate to certain solar power systems leased from unaffiliated third parties over minimum lease terms of up to 20 years and various facility lease agreements.

⁷  Sale-leaseback financing relates to future minimum lease obligations for solar power systems under sale-leaseback arrangements which were determined to include integral equipment and accounted for under the financing method.

⁸  Capital lease commitments primarily relate to certain buildings, manufacturing and equipment under capital leases in Europe for terms of up to 12 years.

⁹  Non-cancellable purchase orders relate to purchases of raw materials for inventory and manufacturing equipment from a variety of vendors.

¹⁰  Purchase commitments under agreements relate to arrangements entered into with several suppliers, including joint ventures, for polysilicon, ingots, wafers, and Solar Renewable Energy Credits, among others. These agreements specify future quantities and pricing of products to be supplied by the vendors for periods up to 10 years and there are certain consequences, such as forfeiture of

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advanced deposits and liquidated damages relating to previous purchases, in the event that we terminate the arrangements. We did not fulfill all of the purchase commitments we were otherwise obligated to take by December 31, 2014, as specified in several related contracts with a supplier. As of March 29, 2015, we have recorded an offsetting asset, recorded within "Prepaid expenses and other current assets," and liability, recorded within "Accrued liabilities," totaling $50.4 million. This amount represents the unfulfilled amount as of that date as the Company expects to satisfy the obligation via purchases of inventory in fiscal 2015, within the cure period specified in the contracts.

Liabilities Associated with Uncertain Tax Positions

Due to the complexity and uncertainty associated with our tax positions, we cannot make a reasonably reliable estimate of the period in which cash settlement will be made for our liabilities associated with uncertain tax positions. Therefore, short-term liabilities associated with uncertain tax positions of $8.0 million included in "Accrued liabilities" and long-term liabilities associated with uncertain tax positions of $23.1 million included in "Other long-term liabilities" in the Company's Consolidated Balance Sheets as of March 29, 2015 have been excluded from the table above.

Off-Balance-Sheet Arrangements

As of March 29, 2015, we did not have any significant off-balance-sheet arrangements, as defined in Item 303(a)(4)(ii) of SEC Regulation S-K.

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ITEM 3: QUANTITATIVE AND QUALITATIVE DISCLOSURE ABOUT MARKET RISK

Foreign Currency Exchange Risk

Our exposure to movements in foreign currency exchange rates is primarily related to sales to European customers that are denominated in Euros. Revenue generated from European customers represented 8% and 18% of our total revenue in the three months ended March 29, 2015 and March 30, 2014, respectively. A 10% change in the Euro exchange rate would have impacted our revenue by approximately $3.5 million and $12.6 million in the three months ended March 29, 2015 and March 30, 2014, respectively.

In the past, we have experienced an adverse impact on our revenue, gross margin and profitability as a result of foreign currency fluctuations. When foreign currencies appreciate against the U.S. dollar, inventories and expenses denominated in foreign currencies become more expensive. Strengthening of the Malaysian Ringgit against the U.S. dollar would increase AUOSP's liability under the facility agreement with the Malaysian government which in turn would negatively impact our equity in earnings (loss) of the unconsolidated investee. An increase in the value of the U.S. dollar relative to foreign currencies could make our solar power products more expensive for international customers, thus potentially leading to a reduction in demand, our sales and profitability. Furthermore, many of our competitors are foreign companies that could benefit from such a currency fluctuation, making it more difficult for us to compete with those companies.

We currently conduct hedging activities which involve the use of option and forward currency contracts that are designed to address our exposure to changes in the foreign exchange rate between the U.S. dollar and other currencies. As of March 29, 2015, we had outstanding hedge option currency contracts and forward currency contracts with aggregate notional values of $13.3 million and $144.8 million, respectively. As of December 28, 2014, we held option and forward contracts totaling $26.6 million and $134.7 million, respectively, in notional value. Because we hedge some of our expected future foreign exchange exposure, if associated revenues do not materialize we could experience a reclassification of ineffective gains or losses into earnings. Such a reclassification could adversely impact our revenue, margins and results of operations. We cannot predict the impact of future exchange rate fluctuations on our business and operating results.

Credit Risk

We have certain financial and derivative instruments that subject us to credit risk. These consist primarily of cash and cash equivalents, restricted cash and cash equivalents, investments, accounts receivable, notes receivable, advances to suppliers, foreign currency option contracts, foreign currency forward contracts, bond hedge and warrant transactions. We are exposed to credit losses in the event of nonperformance by the counterparties to our financial and derivative instruments. Our investment policy requires cash and cash equivalents, restricted cash and cash equivalents, and investments to be placed with high-quality financial institutions and limits the amount of credit risk from any one issuer. We additionally perform ongoing credit evaluations of our customers’ financial condition whenever deemed necessary and generally do not require collateral.

We enter into agreements with vendors that specify future quantities and pricing of polysilicon to be supplied for periods up to 10 years. Under certain agreements, we are required to make prepayments to the vendors over the terms of the arrangements. As of March 29, 2015 and December 28, 2014, advances to suppliers totaled $395.8 million and $409.7 million, respectively. Two suppliers accounted for 83% and 17% of total advances to suppliers as of March 29, 2015, and 82% and 17% as of December 28, 2014.

We enter into foreign currency derivative contracts and convertible debenture hedge transactions with high-quality financial institutions and limit the amount of credit exposure to any single counterparty. The foreign currency derivative contracts are limited to a time period of 15 months or less. We regularly evaluate the credit standing of our counterparty financial institutions.

Interest Rate Risk

We are exposed to interest rate risk because many of our customers depend on debt financing to purchase our solar power systems. An increase in interest rates could make it difficult for our customers to obtain the financing necessary to purchase our solar power systems on favorable terms, or at all, and thus lower demand for our solar power products, reduce revenue and adversely impact our operating results. An increase in interest rates could lower a customer's return on investment in a system or make alternative investments more attractive relative to solar power systems, which, in each case, could cause our customers to seek alternative investments that promise higher returns or demand higher returns from our solar power systems, reduce gross margin and adversely impact our operating results. This risk is significant to our business because our sales model is highly sensitive to interest rate fluctuations and the availability of credit, and would be adversely affected by increases in interest rates or liquidity constraints.

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Our interest expense would increase to the extent interest rates rise in connection with our variable interest rate borrowings. As of March 29, 2015, the outstanding principal balance of our variable interest borrowings was $40.0 million. We do not believe that an immediate 10% increase in interest rates would have a material effect on our financial statements. In addition, lower interest rates would have an adverse impact on our interest income. Our investment portfolio primarily consists of $170.0 million in money market funds as of March 29, 2015 which exposes us to interest rate risk. Due to the relatively short-term nature of our investment portfolio, we do not believe that an immediate 10% increase in interest rates would have a material effect on the fair market value of our money market funds. Since we believe we have the ability to liquidate substantially all of this portfolio, we do not expect our operating results or cash flows to be materially affected to any significant degree by a sudden change in market interest rates on our investment portfolio.

Equity Price Risk Involving Minority Investments in Joint Ventures and Other Non-Public Companies

Our investments held in joint ventures and other non-public companies expose us to equity price risk. As of March 29, 2015 and December 28, 2014, investments of $213.1 million and $210.9 million, respectively, are accounted for using the equity method, and $32.3 million and $32.3 million, respectively, are accounted for using the cost method. These strategic investments in third parties are subject to risk of changes in market value, which if determined to be other-than-temporary, could result in realized impairment losses. We generally do not attempt to reduce or eliminate our market exposure in equity and cost method investments. We monitor these investments for impairment and record reductions in the carrying values when necessary. Circumstances that indicate an other-than-temporary decline include the valuation ascribed to the issuing company in subsequent financing rounds, decreases in quoted market prices and declines in operations of the issuer. There can be no assurance that our equity and cost method investments will not face risks of loss in the future. See also "Risks Related to Our Operations—We have significant international activities and customers, and plan to continue these efforts, which subject us to additional business risks, including logistical complexity and political instability" and "Acquisitions of other companies or investments in joint ventures with other companies could materially and adversely affect our financial condition and results of operations, and dilute our stockholders' equity" in "Part I. Item 1A. Risk Factors" in our Annual Report on Form 10-K for the fiscal year ended December 28, 2014.

Interest Rate Risk and Market Price Risk Involving Convertible Debt

The fair market value of our outstanding convertible debentures is subject to interest rate risk, market price risk and other factors due to the convertible feature of the debentures. The fair market value of the debentures will generally increase as interest rates fall and decrease as interest rates rise. In addition, the fair market value of the debentures will generally increase as the market price of our common stock increases and decrease as the market price of our common stock falls. The interest and market value changes affect the fair market value of the debentures, but do not impact our financial position, cash flows or results of operations due to the fixed nature of the debt obligations. The aggregate estimated fair value of our outstanding convertible debentures was $822.0 million as of March 29, 2015. The aggregate estimated fair value of our outstanding convertible debentures was $1,019.4 million as of December 28, 2014. Estimated fair values are based on quoted market prices as reported by an independent pricing source. A 10% increase in quoted market prices would increase the estimated fair value of our then-outstanding debentures to $904.2 million and $1,121.4 million as of March 29, 2015 and December 28, 2014, respectively, and a 10% decrease in the quoted market prices would decrease the estimated fair value of our then-outstanding debentures to $739.8 million and $917.5 million as of March 29, 2015 and December 28, 2014, respectively.

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ITEM 4:CONTROLSAND PROCEDURES

Evaluation of Disclosure Controls and Procedures

We maintain "disclosure controls and procedures," as defined in Rule 13a-15(e) and 15d-15(e) under the Exchange Act, that are designed to provide reasonable assurance that information required to be disclosed in reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in SEC rules and forms, and that such information is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure. In designing and evaluating our disclosure controls and procedures, management recognizes that disclosure controls and procedures, no matter how well conceived and operated, can provide only reasonable, not absolute, assurance that the objectives of the disclosure controls and procedures are met. Additionally, in designing disclosure controls and procedures, our management is required to apply its judgment in evaluating the cost-benefit relationship of possible disclosure controls and procedures. The design of any disclosure control and procedure also is based in part upon certain assumptions about the likelihood of future events, and there can be no assurance that any design will succeed in achieving its stated goals under all potential future conditions.

Based on their evaluation as of the end of the period covered by this Quarterly Report on Form 10-Q, our Chief Executive Officer and Chief Financial Officer have concluded that our disclosure controls and procedures were effective as of March 29, 2015 at a reasonable assurance level.

Changes in Internal Control over Financial Reporting

We regularly review our system of internal control over financial reporting and make changes to our processes and systems to improve controls and increase efficiency, while ensuring that we maintain an effective internal control environment. Changes may include such activities as implementing new, more efficient systems, consolidating activities, and migrating processes.

There were no changes in our internal control over financial reporting that occurred during our most recent fiscal quarter that materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

PART II

ITEM 1. LEGAL PROCEEDINGS

The disclosure under "Note 8. Commitments and Contingencies—Legal Matters" in "Notes to Condensed Consolidated Financial Statements" contained in this Quarterly Report on Form 10-Q is incorporated herein by reference.

ITEM 1A. RISK FACTORS

In addition to other information set forth in this report, readers should carefully consider the risk factors discussed in "Part I. Item 1A: Risk Factors" in our Annual Report on Form 10-K for the fiscal year ended December 28, 2014, which could materially affect our business, financial condition or future results. The risks described in our Annual Report on Form 10-K and in this Quarterly Report on Form 10-Q are not the only risks facing our company. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial also may materially adversely affect our business, financial condition or future results, as could the following:

The proposed initial public offering of 8point3 Energy Partners LP may not occur on favorable terms or at all, and even if the proposed initial public offering is completed, we may not realize the expected benefits of our Yieldco strategy.

On March 10, 2015, we and First Solar, Inc. (“First Solar” and, together with us, the “Sponsors”), entered into a master formation agreement (the “MFA”) providing for the formation of 8point3 Energy Partners LP (“8point3 Energy Partners”), a joint YieldCo vehicle formed by the Sponsors, and 8point3 Energy Partners filed a registration statement on Form S-1 (the “S-1”) with the SEC for an initial public offering (the “IPO”) of Class A shares representing limited partner interests in 8point3 Energy Partners. The MFA contemplates that if the S-1 is declared effective by the SEC and the IPO is consummated, we will at that time contribute a portfolio of selected solar generation assets and associated entities (the “SPWR Contributed Assets,” and, together with the portfolio of solar generation assets and associated entities First Solar expects to contribute, the “Project Entities”) to 8point3 Energy Partners.

56

There is no assurance that we and First Solar will consummate the transactions, including the IPO, contemplated by the MFA, which are subject to certain regulatory approvals and customary closing conditions, including (i) approval by the Federal Energy Regulatory Commission, (ii) the substantially simultaneous closing of the IPO on terms reasonably acceptable to each of the Sponsors, (iii) 8point3 Energy Partners having obtained a revolving credit and term loan facilities with terms reasonably acceptable to each of the Sponsors, (iv) consummation of the sale by First Solar of approximately 51% of its interests in certain of the assets and associated entities First Solar expects to contribute to 8point3 Energy Partners, (v) the terms of any material contract related to any of the Project Entities of one Sponsor that is entered into or amended before the closing being reasonably acceptable to the other Sponsor and (vi) consents and other customary closing conditions.

Our stock price could fluctuate significantly in response to developments relating to the proposed IPO or other action or market speculation regarding the proposed IPO. In addition, the IPO process will divert the attention of management and will result in a substantial increase in general and administrative expense for third-party consultants and advisors (including legal counsel and accountants).  If the proposed IPO is not completed, we will have expended management's time and incurred significant expenses for which we will not receive any benefit.  Furthermore, some of our strategic business plans, including certain of our project structuring arrangements and related economics, are designed around entering into a YieldCo or similar arrangements.  If we fail to complete the proposed IPO, we will not realize the strategic or economic benefits of these business plans and our business, financial condition and results of operations could be materially adversely affected.

Even if the proposed IPO is completed, we may be unable to realize the full strategic and financial benefits we expect from the proposed YieldCo, on a timely basis or at all. Upon completion of the IPO, we expect to contribute a portfolio of selected solar generation assets from our existing portfolio of assets (the “SPWR Contributed Assets”) to 8point3 Energy Partners. After the IPO, the operations of 8point3 Energy Partners and its related entities will not be consolidated with ours. Instead, we will account for our investments in 8point3 Energy Partners and its related entities using the equity method, whereby the book value of our investments is recorded as a non-current asset and our portion of their earnings is recorded in the Consolidated Statement of Operations under the caption "Equity in earnings (loss) of unconsolidated investees." We expect that the Class A share price of 8point3 Energy Partners could be volatile and there is no assurance that the value of our ownership interests in 8point3 Energy Partners and its related entities will equal or be greater than the book value of the SPWR Contributed Assets on our Consolidated Balance Sheet before the IPO, or that we will realize a return on our investment. Accordingly, we may never recover the value of the SPWR Contributed Assets, and we may realize less of a return on such contribution than if we had retained or operated these assets.

We believe that the viability of the YieldCo strategy will depend, among other things, on our ability to continue to develop revenue-generating solar assets and to productively manage our relationship with our joint venture partner, which are subject to the same project-level, joint venture relationship, business and industry risks described herein, in our Annual Report on Form 10-K for the fiscal year ended December 28, 2014 under the caption “Risk Factors,” and in our other filings with the SEC. If we are unable to complete the proposed IPO or if we are unable to achieve the strategic and financial benefits expected to result from the proposed IPO, our business, financial condition and results of operations could be materially adversely affected.

57

ITEM 2: UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

Issuer Purchases of Equity Securities

The following table sets forth all purchases made by or on behalf of us or any "affiliated purchaser," as defined in Rule 10b-18(a)(3) under the Exchange Act, of shares of our common stock during each of the indicated periods.

Period	Total Number of Shares Purchased1	Average Price Paid Per Share		Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs	Maximum Number of Shares That May Yet Be Purchased Under the Publicly Announced Plans or Programs
December 29, 2014 through January 25, 2015	3,066	$	24.54	—	—
January 26, 2015 through February 22, 2015	21,202	$	28.08	—	—
February 23, 2015 through March 29, 2015	1,164,799	$	32.62	—	—
	1,189,067	$	32.52	—	—

¹  The shares purchased represent shares surrendered to satisfy tax withholding obligations in connection with the vesting of restricted stock issued to employees.

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ITEM 6: EXHIBITS

EXHIBITS
Exhibit Number	Description
2.1	Master Formation Agreement, dated as of March 10, 2015, by and between First Solar, Inc. and SunPower Corporation (incorporated by reference to Exhibit 2.1 to the Registrant’s Current Report on Form 8-K filed with the Securities and Exchange Commission on March 11, 2015).
10.1*	SunPower Corporation Executive Semi-Annual Incentive Bonus Plan.
31.1*	Certification by Chief Executive Officer Pursuant to Rule 13a-14(a)/15d-14(a).
31.2*	Certification by Chief Financial Officer Pursuant to Rule 13a-14(a)/15d-14(a).
32.1*	Certification Furnished Pursuant to 18 U.S.C. Section 1350 as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101.INS*+	XBRL Instance Document.
101.SCH*+	XBRL Taxonomy Schema Document.
101.CAL*+	XBRL Taxonomy Calculation Linkbase Document.
101.LAB*+	XBRL Taxonomy Label Linkbase Document.
101.PRE*+	XBRL Taxonomy Presentation Linkbase Document.
101.DEF*+	XBRL Taxonomy Definition Linkbase Document.

Exhibits marked with an asterisk (*) are filed herewith.

Exhibits marked with a cross (+) are XBRL (Extensible Business Reporting Language) information furnished and not filed herewith, are not a part of a registration statement or Prospectus for purposes of sections 11 or 12 of the Securities Act of 1933, are deemed not filed for purposes of section 18 of the Securities Exchange Act of 1934, and otherwise are not subject to liability under these sections.

59

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereto duly authorized.

	SUNPOWER CORPORATION
Dated: April 30, 2015	By:	/s/  CHARLES D. BOYNTON
		Charles D. Boynton
		Executive Vice President and
		Chief Financial Officer

60

Index to Exhibits

Exhibit Number	Description
2.1	Master Formation Agreement, dated as of March 10, 2015, by and between First Solar, Inc. and SunPower Corporation (incorporated by reference to Exhibit 2.1 to the Registrant’s Current Report on Form 8-K filed with the Securities and Exchange Commission on March 11, 2015).
10.1*	SunPower Corporation Executive Semi-Annual Incentive Bonus Plan.
31.1*	Certification by Chief Executive Officer Pursuant to Rule 13a-14(a)/15d-14(a).
31.2*	Certification by Chief Financial Officer Pursuant to Rule 13a-14(a)/15d-14(a).
32.1*	Certification Furnished Pursuant to 18 U.S.C. Section 1350 as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101.INS*+	XBRL Instance Document.
101.SCH*+	XBRL Taxonomy Schema Document.
101.CAL*+	XBRL Taxonomy Calculation Linkbase Document.
101.LAB*+	XBRL Taxonomy Label Linkbase Document.
101.PRE*+	XBRL Taxonomy Presentation Linkbase Document.
101.DEF*+	XBRL Taxonomy Definition Linkbase Document.

Exhibits marked with an asterisk (*) are filed herewith.

Exhibits marked with a cross (+) are XBRL (Extensible Business Reporting Language) information furnished and not filed herewith, are not a part of a registration statement or Prospectus for purposes of sections 11 or 12 of the Securities Act of 1933, are deemed not filed for purposes of section 18 of the Securities Exchange Act of 1934, and otherwise are not subject to liability under these sections.

61

EX-10.1

SUNPOWER CORPORATION

EXECUTIVE SEMI-ANNUAL

INCENTIVE BONUS PLAN

(Amended and Restated February 3, 2015)

THIS PLAN SUPERSEDES AND REPLACES THE SUNPOWER CORPORATION EXECUTIVE QUARTERLY KEY INITIATIVE BONUS PLAN (Amended and Restated February 3, 2014)

Article 1 -Executive Semi-Annual Incentive Bonus Plan Objective

1.1 The objective of this Executive Semi-Annual Incentive Bonus Plan (“Executive Semi-Annual Bonus Plan”) is to encourage retention and provide incentives to executives of SunPower Corporation and its subsidiaries (collectively, the “Company”) based on the Company’s pre-tax net income, company milestones and an individual's performance. The Executive Semi-Annual Bonus Plan shall be administered by the Compensation Committee appointed by the Board of Directors of SunPower Corporation.

Article 2 -Effective Date

2.1 This Semi-Annual Bonus Plan will be effective as of December 29, 2014.

2.2 “Plan Periods” under the Executive Semi-Annual Bonus Plan will correspond to the two semi-annual periods that comprise the first and second fiscal quarters and third and fourth fiscal quarters, respectively, of the fiscal year of the Company.

Article 3 -Eligibility for Executive Semi-Annual Bonus Plan Participation

3.1 All executive officers of the Company, as well as any other executives approved by the Compensation Committee of the Board of Directors, shall participate in the Executive Semi-Annual Bonus Plan. Participation will generally be limited to the CEO and the CEO’s executive direct reports.

3.2 New Hires: New Hires shall be eligible to participate in the Executive Semi-Annual Bonus Plan upon start date unless hired after the first business day of the final month of the Plan Period (i.e., generally June and December fiscal months). Any Executive Semi-Annual Bonus Plan Bonus paid will be based on actual eligible earnings during the Plan Period.

Article 4 -Target Bonus Percentages and Calculations

4.1 Executive Semi-Annual Target Bonus Percentages:

(i) Each Executive Semi-Annual Bonus Plan participant will be allocated a target bonus expressed as a percentage of his or her annual base salary. Target bonus percentages are set by the Compensation Committee. The Compensation Committee may, in its discretion, set maximum caps on the payout amount for Executive Semi-Annual bonuses. The Compensation Committee may delegate establishing target bonus percentages to officers of the Company; provided that executive officer target bonus percentages must be approved by the Compensation Committee.

(ii) If a participant’s bonus target percentage changes during the Plan Period due to a change in position as a result of the annual review process, the bonus target will be calculated by averaging the original bonus target and new bonus target percentage. If a participant’s bonus target percentage changes for any other reason, including moving into a new position outside of the annual review process, the bonus target will be calculated based on a weighted average based on

the number of full months in each position. The effective date for the new bonus target will be the first day of the month after the change. (Example: If a participant is promoted into a position with a different bonus target on Feb 15^th, the new bonus target will be in effect March 1^st, and the participant’s bonus target percentage will be 2/6 at the original target bonus and 4/6 at the new target bonus).

(iii) Twenty-five percent of each participant’s annual target bonus percentage is calculated and earned pursuant to this Executive Semi-Annual Bonus Plan. The annual target bonus is comprised of the following components:

Annual Bonus Plan Component	Percentage	Bonus Payment Frequency
Revenue score	25%	Annually
Net Income score	25%	Annually
Free Cash Flow score	25%	Annually
Executive Semi-Annual Bonus Plan	25%	Semi-Annually

4.2 Executive Semi-Annual Bonus Plan Components:

(i) Individual Modifier. Following each Plan Period, the participant’s manager will assign an individual modifier based on performance during the Plan Period which is expressed as a percentage and capped at 125%. The Board of Directors will assign an individual modifier for the Chief Executive Officer, based on performance during the Plan Period which is expressed as a percentage and capped at 125%.

(ii) Company Milestone Factor. Each quarter, the Board of Directors will establish quarterly company milestones for such quarter. Each company milestone will be allocated a certain number of points. Following each quarter, the executive officers of the Company will score the achievement of company milestones, which score is expressed as a percentage.

If the company milestone score is less than or equal to 60%, the company milestone factor will be 0%. If the company milestone score is greater than 60% and less than 80%, the company milestone factor will be 50%. If the company milestone score is equal to or greater than 80%, the company milestone factor will be 100%.

For the first Plan Period in a fiscal year, the company milestone score for the second quarter of the fiscal year will be used in determining the company milestone factor for the Executive Semi-Annual Bonus for that Plan Period. For the second Plan Period in a fiscal year, the company milestone factor for the fourth quarter of the fiscal year will be used in determining Executive Semi-Annual Bonus for that Plan Period.

iii) Pre-Tax Net Income Factor. For each Plan Period, the executive officers will establish an internal Pre-Tax Net Income financial target for the Company (“Target Pre-Tax Net Income”), including maximum Pre-Tax Net Income levels for the Plan Period. Following each Plan Period, the actual Pre-Tax Net Income for such Plan Period will be determined (“Actual Pre-Tax Net Income”). If Actual Pre-Tax Net Income is less than the Target Pre-Tax Net Income, the resulting Pre-Tax Net Income Factor will be 0%. If Actual Pre-Tax Net Income is equal to or greater than Target Pre-Tax Net Income, the Factor will be between 100% and 125%, based on a straight-line proration between target and maximum achievement. The Pre-Tax Net Income Factor will be greater than 100% only if Actual Pre-Tax Net Income is greater than zero. The Pre-Tax Net Income factor will be expressed as a percentage and capped at 125%.

In the event that the Board of Directors approves an merger, acquisition, divestment or other material transaction outside of the normal course of business and where the purchase price or valuation of the third-party company or transaction is greater than $10 million, there will be an adjustment made to exclude the effects of such transaction in calculating the actual revenue, Actual Pre-Tax Net Income, and Free Cash Flow.  

For purposes of comparing the Actual Pre-Tax Net Income against the Target Pre-Tax Net Income following the Performance Period, the Actual Pre-Tax Net Income will be adjusted to exclude the following events that occur during the Plan Period:

(i) asset write-downs,

(ii) accruals for reorganization and restructuring programs,

(iii) acceleration of amortization of debt issuance costs,

(iv) purchase-accounting related charges, including amortization of intangible purchased assets, acquired in-process research and development charges, and similar charges associated with purchase accounting,

(v) litigation or claim judgments or settlements,

(vi) the effect of changes in tax law, accounting principles or other such laws or provisions affecting reported results,

(vii) stock-based compensation charges

(viii) expenses recorded under US GAAP as a result of related party transactions with TOTAL, such as expenses recorded in connection with the LC guarantee facility and the Liquidity Support Agreement (Revenue and gross margin recorded associated with any solar system or similar sales to TOTAL for US GAAP purposes shall not be excluded)

(ix) any extraordinary nonrecurring items as described in Accounting Principles Board Opinion No. 30

All references to “Actual Pre-Tax Net Income” shall refer to such amounts after giving effect to the foregoing adjustments. Note that the Compensation Committee explicitly retains the option of negative discretion with respect to items (i) to (ix) above; i.e. the Committee may choose to include rather than exclude expenses related to some or all of those events in the calculation of Actual Pre-Tax Net Income for compensation purposes.

4.3 Semi-Annual bonuses under this Executive Semi-Annual Bonus Plan are based on (a) the participant’s individual modifier for the Plan Period, (b) the company milestone factor, and (c) the Pre-Tax Net Income Factor for the Plan Period. The bonus payout is calculated as follows:

For each Plan Period:

(i) The Company Milestone factor is calculated as follows:

If the Company Milestone Score is:	Executive Semi-Annual Bonus for the Plan Period will be:
= or < 60%	No Executive Semi-Annual bonus
60% < Company Milestone Score <80%	Multiplied by a factor of 50%
=> 80%	Multiplied by a factor of 100%

(ii) The Pre-Tax Net Income factor is calculated as follows:

If the Actual Pre-Tax Net Income is:	Executive Semi-Annual Bonus for the Plan Period will be:
< 100% Target Pre-Tax Net Income	No Semi-Annual bonus payout
>/=100% of the Target Pre-Tax Net Income AND Company Milestone condition is met as set forth above	Multiplied by an adjustment factor between 100% and 125%, based on a straight-line proration between target and maximum achievement. NOTE: Adjustment factor will be greater than 100% only if Actual Pre-Tax Net Income is greater than zero.

Example Calculation -

Eligible Earnings    Bonus Target    Pre Tax NI Factor    Company Milestone Score    Individual Modifier        Bonus Payout

$150,000 x     20% x 100% x 100% x     105%     =     $31,500                

(iii) Other Examples:

a. First Plan Period of fiscal year: Actual Pre-Tax Net Income is below Target Pre-Tax Net Income performance levels (Pre-Tax Net Income Factor = 0%) and Company milestone score for Q2 is greater than 80% (Company Milestone factor = 100%). The employee has a eligible earnings of $150,000, a target bonus of 20% for the Semi-Annual Plan, and an Individual Modifier of 90%:

    The first Plan Period semi-annual bonus = $150,000 x 20% x 0% x 100% x 90% = $ 0

b. Second Plan Period: Actual Pre-Tax Net Income is equal to Target Pre-Tax Net Income performance levels (Pre-Tax Net Income Factor = 100%) company milestone score for Q4 is 70% (Company Milestone factor = 50%). The employee has eligible earnings of $150,000, a target bonus of 20% for the Semi-Annual Plan, and an Individual Modifier of 110%:

The second Plan Period semi-annual bonus = $150,000 x 20% x 100% x 50% x 110% = $16,500

The Board reserves the right to reduce payments above 100% of target, should the sum of payments above target for all eligible employees become a material portion of the Actual Pre-Tax Net Income achieved by the Company.

4.4 Semi-Annual bonuses under this Executive Semi-Annual Bonus Plan are generally paid within 90 days following the end of the Plan Period, and in all events will be paid within two and one-half months of the end of the calendar year that includes the last day of such Plan Period.

Article 5 -Effect of Base Salary on Target Bonus Adjustments

5.1 Payout calculations under the Executive Semi-Annual Bonus Plan will be based on the plan participant's eligible earnings.

5.2 Eligible earnings are defined by each country to align with local legal requirements, but they are generally defined as an employee’s base salary or hourly wages earned during the Plan Period. Eligible Earnings do not include, among other elements, other bonuses or payments, disability pay, “extra months” bonuses, expense reimbursements or other payments that are taxable but not considered regular base earnings.

Article 6 -Earning of Bonus

6.1 Employment: Because one of the primary objectives of the Executive Semi-Annual Bonus Plan is to encourage employee retention, to earn an Executive Semi-Annual Bonus Plan payment, the participant must be employed by the Company at the scheduled payment date, unless otherwise required by local law, or as provided below.

6.2 Death: If a participant dies during the Plan Period, the bonus will be paid to the beneficiary designated by the participant or, if no such designation has been made, to the entity or person(s) entitled thereto as determined by a court of competent jurisdiction. The bonus will be calculated as follows: the Plan Period in which death occurred will be considered a completed Plan Period and the Semi-Annual bonus for that Plan Period will be paid as though attainment was 100% on each of the individual modifier, company milestone factor, and Pre-Tax Net Income factor. If the participant dies after the Plan Period but prior to the payment date,the bonus will be paid to the beneficiary designated by the participant or, if no such designation has been made, to the entity or person(s) entitled thereto as determined by a court of competent jurisdiction. The bonus will be bonus based on actual attainment on each of the individual modifier, company milestone

factor, and Pre-Tax Net Income factor for that Plan Period. No further payment will be due or paid pursuant to this Executive Semi-Annual Bonus Plan.

6.3 Involuntary Termination without Cause during Plan Period: A participant who is terminated involuntarily for a reason other than for cause during a Plan Period, will be paid a bonus calculated as follows: the Plan Period in which the termination occurred will be prorated based on completion of month of termination and the Executive Semi-Annual Bonus for that Plan Period will be paid as though attainment was 100% on each of the individual modifier, company milestone factor, and Pre-Tax Net Income Factor. A participant who is terminated involuntarily for a reason other than for cause following the end of a Plan Period, but prior to the payment date, will be paid a bonus based on actual attainment on each of the individual modifier, company milestone factor, and Pre-Tax Net Income Factor. No further payment will be due or paid pursuant to this Executive Semi-Annual Bonus Plan.

6.4 Involuntary Termination for Cause: A participant who is terminated for cause during a Plan Period, or following the end of a plan period, but prior to the payment date, will not earn and will not be paid a bonus. The Company shall determine in its sole and absolute discretion whether any employee’s termination is with cause. For purposes of this Executive Semi-Annual Bonus Plan, "cause" means the occurrence of any of the following, as determined by the Company in good faith: (i) acts or omissions constituting gross negligence or willful misconduct on the part of the participant with respect to the participant’s obligations or otherwise relating to the business of Company, (ii) the participant's conviction of, or plea of guilty or nolo contendere to, crimes involving fraud, misappropriation or embezzlement, or a felony crime of moral turpitude, (iii) the participant’s violation or breach of any fiduciary duty (whether or not involving personal profit) to the Company, except to the extent that the violation or breach was reasonably based on the advice of the Company's outside counsel, or willful violation of a published policy of the Company governing the conduct of it executives or other employees, or (iv) the participant’s violation or breach of any contractual duty to the Company which duty is material to the performance of the participant's duties or results in material damage to the Company or its business; provided that if any of the foregoing events is capable of being cured, the Company will provide notice to the participant describing the nature of such event and the participant will thereafter have thirty (30) days to cure such event.

6.5 Voluntary Termination: A participant who terminates employment during the Plan Period, or after the Plan Period, but prior to the payment date will be ineligible for any and all bonuses not yet earned and paid, except as otherwise provided in any separate agreement approved by the Compensation Committee.

Article 7 -Miscellaneous

7.1 All qualified bonus payments will be paid in a lump-sum. Where permitted by applicable law, deductions for federal, state, local or other applicable tax liabilities will be calculated and withheld as appropriate from Executive Semi-Annual Bonus Plan payments.

7.2 Unless as defined in article 6.2, no right or interest in this Executive Semi-Annual Bonus Plan is transferable or assignable except by will or laws of descent and distribution.

7.3 Participation in this Executive Semi-Annual Bonus Plan does not guarantee any right to continued employment with the Company. Where ever permitted by local law, employment with SunPower is "at will", which means that either the participant or SunPower may terminate the employment relationship at any time for any or no reason, with or without notice and with or without cause. Neither this document nor anything contained in it shall affect the participant’s status as an employee-at will of SunPower.

7.4 Participation in the Executive Semi-Annual Bonus Plan in a particular Plan Period is not a guarantee to participate in subsequent Plan Periods. Similarly, payment in one year does not constitute a promise to make any payment or continue the Executive Semi-Annual Bonus Plan in future years.

7.5 The Compensation Committee reserves the right to discontinue participation of any participant in this Executive Semi-Annual Bonus Plan, at any time, and for any reason. The Compensation Committee reserves the right to adjust, modify, or reduce the bonus payment to any participant in this Executive Semi-Annual Bonus Plan, at any time, and for any reason.

7.6 This Executive Semi-Annual Bonus Plan is unfunded and the Company does not intend to set up a sinking fund. Consequently, payments arising out of bonus earned shall be paid out of the Company's general assets. Accounts recognized by the Company for book purposes are not an indication of funds set aside for payment. Executive Semi-

Annual Bonus Plan participants are considered as general creditors of the Company and the obligation of the Company is not secured by any particular Company asset.

7.7 The provisions of this Executive Semi-Annual Bonus Plan shall not limit the ability of the Compensation Committee (or its designees) to modify, amend, suspend, terminate or reinstate said Executive Semi-Annual Bonus Plan, or adopt such other plans on matters of compensation, bonus or incentive, which in its own judgment it deems proper, at any time.

EX-31.1

EXHIBIT 31.1

CERTIFICATIONS

I, Thomas H. Werner, certify that:

1 I have reviewed this Quarterly Report on Form 10-Q of SunPower Corporation;

2 Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3 Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4 The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a)           Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)           Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c)           Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)           Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5 The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

(a)           All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b)           Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:  April 30, 2015

/S/ THOMAS H. WERNER

Thomas H. Werner

President, Chief Executive Officer and Director

(Principal Executive Officer)

EX-31.2

EXHIBIT 31.2

CERTIFICATIONS

I, Charles D. Boynton, certify that:

1 I have reviewed this Quarterly Report on Form 10-Q of SunPower Corporation;

2 Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3 Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4 The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a)           Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)           Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c)           Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)           Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5 The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

(a)           All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b)           Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:  April 30, 2015

/S/ CHARLES D. BOYNTON

Charles D. Boynton

Executive Vice President and Chief Financial Officer

(Principal Financial Officer)

EX-32.1

EXHIBIT 32.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER AND

CHIEF FINANCIAL OFFICER PURSUANT TO

18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of SunPower Corporation (the “Company”) on Form 10-Q for the period ended March 29, 2015 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), each of Thomas H. Werner and Charles D. Boynton certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of his knowledge and belief:

(1)  The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2)  The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

  Dated: April 30, 2015

/S/ THOMAS H. WERNER

Thomas H. Werner

President, Chief Executive Officer and Director

(Principal Executive Officer)

/S/ CHARLES D. BOYNTON

Charles D. Boynton

Executive Vice President and Chief Financial Officer

(Principal Financial Officer)

The foregoing certification is being furnished solely pursuant to 18 U.S.C. Section 1350 and is not being filed as part of the Report or as a separate disclosure statement.

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The Company and Summary of Significant Accounting Policies (Details)	3 Months Ended
	Mar. 29, 2015
Concentration Risk [Line Items]
Operating lease, term	20 years
Sale leaseback transactions, lease term	20 years
Product liability contingency, minimum performance threshold, buy-back obligation, term	2 years
Capital leases, maximum term	20 years

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Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 29, 2015	Mar. 30, 2014	Dec. 28, 2014
Geographic distribution of income (loss) from continuing operations before income taxes and equity in earnings of unconsolidated investees:
Income (loss) before income taxes and equity in earnings (loss) of unconsolidated investees	$ (28,890)	$ 54,871
Provision for income taxes	(2,351)	13,620
Unrecognized tax benefits	$ 31,069		$ 31,764

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Fair Value Measurements (Details) (USD $)	3 Months Ended			12 Months Ended		1 Months Ended
	Mar. 29, 2015		Mar. 30, 2014	Dec. 28, 2014		Nov. 30, 2014
Accrued liabilities:
Derivative financial instruments (Note 11)	$ 2,715,000			$ 1,345,000
Other long-term liabilities:
Derivative financial instruments (Note 11)	10,548,000			3,712,000
Related Party Transactions [Abstract]
Accounts receivable	20,235,000			22,425,000
Accounts payable	26,252,000			50,039,000
Long-term note receivable	1,553,000			1,623,000
Payments made to investees for products/services	119,177,000		105,010,000
Restricted long-term marketable securities	7,027,000			7,158,000
Restricted long-term marketable securities	7,027,000			7,158,000
Equity method investments	213,089,000			210,898,000
Cost method investments	32,277,000			32,308,000
Customer advances	1,212,000			4,210,000
Revenue from sales to investees of products/services	5,603,000		0
4.5% Bond Hedge [Member]
Other long-term liabilities:
Interest rate	4.50%
Fair Value Inputs, Quantitative Information [Abstract]
Stock price (in dollars per share)				$ 26.32
Exercise price (in dollars per share)				$ 22.53
Interest rate				0.1908%	[1]
Stock Volatility				61.70%	[1]
Credit Risk Adjustment				0.64888%	[1]
Maturity date				Feb. 18, 2015
Fair Value, Measurements, Recurring [Member]
Cash and cash equivalents:
Money market funds	170,000,000	[2]		375,000,000
Prepaid expenses and other current assets:
Debt derivatives (Note 10)	0			51,951,000
Derivative financial instruments (Note 11)	12,196,000			7,018,000
Total assets	182,196,000			433,969,000
Accrued liabilities:
Debt derivatives (Note 10)	0			51,951,000
Derivative financial instruments (Note 11)	2,715,000			1,345,000
Other long-term liabilities:
Derivative financial instruments (Note 11)	10,548,000			3,712,000
Total liabilities	13,263,000			57,008,000
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Cash and cash equivalents:
Money market funds	170,000,000	[2]		375,000,000
Prepaid expenses and other current assets:
Debt derivatives (Note 10)	0			0
Derivative financial instruments (Note 11)	0			0
Total assets	170,000,000			375,000,000
Accrued liabilities:
Debt derivatives (Note 10)	0			0
Derivative financial instruments (Note 11)	0			0
Other long-term liabilities:
Derivative financial instruments (Note 11)	0			0
Total liabilities	0			0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Cash and cash equivalents:
Money market funds	0	[2]		0
Prepaid expenses and other current assets:
Debt derivatives (Note 10)	0			51,951,000
Derivative financial instruments (Note 11)	12,196,000			7,018,000
Total assets	12,196,000			58,969,000
Accrued liabilities:
Debt derivatives (Note 10)	0			51,951,000
Derivative financial instruments (Note 11)	2,715,000			1,345,000
Other long-term liabilities:
Derivative financial instruments (Note 11)	10,548,000			3,712,000
Total liabilities	13,263,000			57,008,000
4.50% debentures due 2015 [Member]
Other long-term liabilities:
Interest rate	4.50%
Tendril Networks Inc [Member] | Preferred Stock [Member]
Fair Value Inputs, Quantitative Information [Abstract]
Cost method investment, original cost						20,000,000
Tendril Networks Inc [Member] | Common Stock [Member]
Fair Value Inputs, Quantitative Information [Abstract]
Cost method investment, agreement to purchase additional interest (in shares)						14,000,000
SunPower Inc [Member] | Tendril Networks Inc [Member] | Master Services Agreement and Statement of Works [Member]
Fair Value Inputs, Quantitative Information [Abstract]
Cost method investments, joint investment in development project						13,000,000

[1] The valuation model utilizes these inputs to value the right but not the obligation to purchase one share of the Company's common stock at $22.53. The Company utilized a Black-Scholes valuation model to value the 4.50% Bond Hedge and embedded cash conversion option. The underlying input assumptions were determined as follows:(i)Stock price. The closing price of the Company's common stock on the last trading day of the quarter.(ii)Exercise price. The exercise price of the 4.50% Bond Hedge and the embedded cash conversion option.(iii)Interest rate. The Treasury Strip rate associated with the life of the 4.50% Bond Hedge and the embedded cash conversion option.(iv)Stock volatility. The volatility of the Company's common stock over the life of the 4.50% Bond Hedge and the embedded cash conversion option.(v)Credit risk adjustment. Represents the weighted average of the credit default swap rate of the counterparties.

[2] 1The Company's cash equivalents consist of money market fund instruments and commercial paper that are classified as available-for-sale and are highly liquid investments with original maturities of 90 days or less. The Company's money market fund instruments are categorized within Level 1 of the fair value hierarchy because they are valued using quoted market prices for identical instruments in active markets.

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Net Income (Loss) Per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 29, 2015	Mar. 30, 2014	Feb. 28, 2012	May 31, 2009
Net Income (Loss) Available to Common Stockholders, Diluted [Abstract]
Net income (loss) attributable to stockholders	$ (9,581)	$ 65,044
Basic weighted-average common shares (in shares)	132,033,000	122,196,000
Basic (in dollars per share)	$ (0.07)	$ 0.53
Net income (loss) available to common stockholders	(9,581)	67,679
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Diluted weighted-average common shares	(132,033,000)	(160,434,000)
Dilutive net income (loss) per share	$ (0.07)	$ 0.42
Stock options [Member]
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Outstanding anti-dilutive potential common stock excluded from income (loss) per diluted share	190,000	159,000
Restricted stock units [Member]
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Outstanding anti-dilutive potential common stock excluded from income (loss) per diluted share	3,616,000	464,000
Upfront Warrants (held by Total) [Member]
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Outstanding anti-dilutive potential common stock excluded from income (loss) per diluted share	9,532,000	0
Warrants (Under the CSO2015) [Member]
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Outstanding anti-dilutive potential common stock excluded from income (loss) per diluted share	11,000	0
0.875% debentures due 2021 [Member]
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Outstanding anti-dilutive potential common stock excluded from income (loss) per diluted share	8,203,000
0.75% debentures due 2018 [Member]
Net Income (Loss) Available to Common Stockholders, Diluted [Abstract]
Interest expense incurred on debentures	0	450
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Debentures due	0	12,026,000
Outstanding anti-dilutive potential common stock excluded from income (loss) per diluted share	12,026,000	0
4.75% debentures due 2014 [Member]
Net Income (Loss) Available to Common Stockholders, Diluted [Abstract]
Interest expense incurred on debentures	$ 0	$ 2,185
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Debentures due	0	8,712,000
4.75% debentures due 2014 [Member] | Maximum [Member] | Warrant (Under the CSO2014) [Member]
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Warrant or right, number of securities called by each warrant or right (in shares)	8,700,000
Upfront Warrants (held by Total) [Member]
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Warrants	0	7,227,000
Upfront Warrants (held by Total) [Member] | Total [Member]
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Warrant or right, number of securities called by each warrant or right (in shares)			9,531,677
Class of warrant or right, exercise price of warrants or rights (in dollars per share)			$ 7.8685
Warrants (Under the CSO2015) [Member]
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Warrants	0	2,915,000
Class of warrant or right, exercise price of warrants or rights (in dollars per share)	$ 24.00
Warrant (Under the CSO2014) [Member]
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Warrants	0	1,048,000
Class of warrant or right, exercise price of warrants or rights (in dollars per share)	$ 26.40			$ 26.40
Warrant (Under the CSO2014) [Member] | Maximum [Member]
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Warrant or right, number of securities called by each warrant or right (in shares)	8,700,000
Stock options [Member]
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Restricted stock units	0	108,000
Restricted stock units [Member]
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Restricted stock units	0	6,202,000

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Balance Sheet Components (Details) (USD $)	Mar. 29, 2015		Dec. 28, 2014		Mar. 30, 2014	Dec. 29, 2013
Accounts receivable, net:
Accounts receivable, gross	$ 485,614,000	[1],[2]	$ 523,613,000	[1],[2]
Less: allowance for doubtful accounts	(17,226,000)		18,152,000
Less: allowance for sales returns	(520,000)		1,145,000
Accounts receivable, net	467,868,000	[3]	504,316,000
Short-term financing receivable	(11,250,000)		(9,141,000)
Short-term retainage	240,300,000		213,000,000
Inventory Disclosure [Abstract]
Raw materials	71,552,000		46,848,000
Work-in-process	85,800,000		67,903,000
Finished goods	145,235,000		93,822,000
Inventories	302,587,000		208,573,000
Prepaid Expense and Other Assets, Current [Abstract]
Deferred project costs	57,989,000		64,784,000
Bond hedge derivative	0		51,951,000
VAT receivables, current portion	6,628,000		7,554,000
Deferred costs for solar power systems to be leased	26,633,000		22,537,000
Derivative financial instruments	12,196,000		7,018,000
Prepaid inventory	50,395,000		0
Other receivables	92,924,000		79,927,000
Other prepaid expenses	54,923,000		47,448,000
Other current assets	44,137,000		47,626,000
Prepaid expenses and other current assets	345,825,000	[3]	328,845,000
Project Assets [Abstract]
Project assets — plants	196,890,000		104,328,000
Project assets — land	12,154,000		12,328,000
Project assets - plants and land	209,044,000		116,656,000
Project assets - plants and land, current portion	179,650,000		101,181,000
Project assets - plants and land, net of current portion	29,394,000		15,475,000
Property, plant and equipment, net:
Manufacturing equipment	556,730,000	[4]	554,124,000
Land and buildings	26,138,000		26,138,000
Leasehold improvements	237,713,000		236,867,000
Solar power systems	126,350,000	[5]	124,848,000
Computer equipment	92,636,000		88,257,000
Furniture and fixtures	9,384,000		9,436,000
Construction-in-process	97,493,000		75,570,000
Property, plant and equipment, gross	1,146,444,000		1,115,240,000
Less: accumulated depreciation	(551,978,000)		529,896,000
Property, plant and equipment, net	594,466,000	[6]	585,344,000
Pledged Assets, Other, Not Separately Reported on Statement of Financial Position [Abstract]
Solar power systems, sale leaseback	95,400,000		94,400,000
Property, plant and equipment, net by geography:
Property, plant and equipment, net	594,466,000	[6]	585,344,000
Other Assets, Noncurrent [Abstract]
Equity method investments	213,089,000		210,898,000
Cost method investments	32,277,000		32,308,000
Other	61,644,000		57,023,000
Other long-term assets	307,010,000	[3]	300,229,000
Accrued Liabilities, Current [Abstract]
Bond hedge derivatives	0		51,951,000
Employee compensation and employee benefits	36,355,000		47,667,000
Deferred revenue	27,075,000		33,412,000
Short-term residential lease financing	1,270,000		1,489,000
Interest payable	11,703,000		10,575,000
Short-term warranty reserves	14,467,000		13,278,000
Restructuring reserve	9,130,000		13,477,000
VAT payables	7,316,000		6,073,000
Derivative financial instruments	2,715,000		1,345,000
Inventory payable	50,395,000		0
Other	109,065,000		151,767,000
Accrued liabilities	269,491,000		331,034,000
Other Liabilities, Noncurrent [Abstract]
Deferred revenue	178,602,000		176,804,000
Long-term warranty reserves	139,630,000		141,370,000
Long-term sale-leaseback financing	112,240,000		111,904,000
Long-term residential lease financing	19,032,000		27,122,000
Unrecognized Tax Benefits Including Income Tax Penalties And Interest Accrued, Non-Current	23,069,000
Long-term pension liability	10,780,000		9,980,000
Derivative financial instruments	10,548,000		3,712,000
Other	49,072,000		52,688,000
Other long-term liabilities	542,973,000		555,344,000
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Cumulative translation adjustment	(10,715,000)		(8,712,000)
Net unrealized loss on derivatives	(5,631,000)		(1,443,000)		(420,000)	(805,000)
Net loss on long-term pension liability adjustment	(2,878,000)		(2,878,000)
Deferred taxes	(311,000)		(422,000)
Accumulated other comprehensive loss	(19,535,000)		(13,455,000)
IFC Mortgage Loan [Member]
Pledged Assets, Other, Not Separately Reported on Statement of Financial Position [Abstract]
Collateralized Equipment	107,700,000		111,900,000
UNITED STATES
Property, plant and equipment, net:
Property, plant and equipment, net	182,362,000	[6]	183,631,000
Property, plant and equipment, net by geography:
Property, plant and equipment, net	182,362,000	[6]	183,631,000
PHILIPPINES
Property, plant and equipment, net:
Property, plant and equipment, net	345,803,000	[6]	335,643,000
Property, plant and equipment, net by geography:
Property, plant and equipment, net	345,803,000	[6]	335,643,000
MEXICO
Property, plant and equipment, net:
Property, plant and equipment, net	40,393,000	[6]	40,251,000
Property, plant and equipment, net by geography:
Property, plant and equipment, net	40,393,000	[6]	40,251,000
Europe [Member]
Property, plant and equipment, net:
Property, plant and equipment, net	24,620,000	[6]	24,748,000
Property, plant and equipment, net by geography:
Property, plant and equipment, net	24,620,000	[6]	24,748,000
UNKNOWN COUNTRY
Property, plant and equipment, net:
Property, plant and equipment, net	1,288,000	[6]	1,071,000
Property, plant and equipment, net by geography:
Property, plant and equipment, net	$ 1,288,000	[6]	$ 1,071,000

[1] Includes short-term financing receivables associated with solar power systems leased of $11.3 million and $9.1 million as of March 29, 2015 and December 28, 2014, respectively (see Note 5).

[2] Includes short-term retainage of $240.3 million and $213.0 million as of March 29, 2015 and December 28, 2014, respectively. Retainage refers to the earned, but unbilled, portion of a construction and development project for which payment is deferred by the customer until certain contractual milestones are met.

[3] The Company has related-party balances for transactions made with Total and its affiliates as well as unconsolidated entities in which the Company has a direct equity investment. These related-party balances are recorded within the "Accounts Receivable, net," "Costs and estimated earnings in excess of billings," "Prepaid expenses and other current assets," "Other long-term assets," "Accounts payable," "Customer advances, current portion," "Convertible debt, net of current portion," and "Customer advances, net of current portion" financial statement line items in the Consolidated Balance Sheets (see Note 2, Note 6, Note 9, Note 10, and Note 11).

[4] 3 The Company's mortgage loan agreement with International Finance Corporation ("IFC") is collateralized by certain manufacturing equipment with a net book value of $107.7 million and $111.9 million as of March 29, 2015 and December 28, 2014, respectively.

[5] Includes $95.4 million and $94.4 million of solar power systems associated with sale-leaseback transactions under the financing method as of March 29, 2015 and December 28, 2014, respectively, which are depreciated using the straight-line method to their estimated residual values over the lease terms of up to 20 years (see Note 5).

[6] Property, plant and equipment, net by geography is based on the physical location of the assets.

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Debt and Credit Sources (Tables)

3 Months Ended

Mar. 29, 2015

Debt Disclosure [Abstract]

Schedule of debt

The following table summarizes the Company's outstanding debt on its Consolidated Balance Sheets:

	March 29, 2015								December 28, 2014
(In thousands)	Face Value		Short-term		Long-term		Total		Face Value		Short-term		Long-term		Total
Convertible debt:
0.875% debentures due 2021	$	400,000	$	—	$	395,922	$	395,922	$	400,000	$	—	$	395,475	$	395,475
0.75% debentures due 2018	300,000		—		297,590		297,590		300,000		—		297,401		297,401
4.50% debentures due 2015	—				—		—		249,645		245,325		—		245,325
0.75% debentures due 2027	79		—		79		79		79		—		79		79
IFC mortgage loan	40,000		15,000		24,081		39,081		47,500		14,983		31,492		46,475
CEDA loan	30,000		—		27,479		27,479		30,000		—		27,379		27,379
Quinto Credit Facility	128,841		—		128,841		128,841		61,481		—		61,481		61,481
Other debt1	113,498		2,020		110,661		112,681		91,398		1,963		88,605		90,568
	$	1,012,418	$	17,020	$	984,653	$	1,001,673	$	1,180,103	$	262,271	$	901,912	$	1,164,183

¹  Other debt excludes payments related to capital leases, which are disclosed in Note 8.

Schedule of maturities of debt

As of March 29, 2015, the aggregate future contractual maturities of the Company's outstanding debt, at face value, was as follows:

(In thousands)	Fiscal 2015 (remaining nine months)		Fiscal 2016	Fiscal 2017	Fiscal 2018	Fiscal 2019	Thereafter	Total
Aggregate future maturities of outstanding debt	$	9,074	23,056	23,983	308,531	9,929	637,845	$	1,012,418

Schedule of long-term convertible debt instruments

The following table summarizes the Company's outstanding convertible debt:

	March 29, 2015						December 28, 2014
(In thousands)	Carrying Value		Face Value		Fair Value1		Carrying Value		Face Value		Fair Value1
Convertible debt:
0.875% debentures due 2021	$	395,922	$	400,000	$	399,688	$	395,475	$	400,000	$	358,000
0.75% debentures due 2018	297,590		300,000		422,205		297,401		300,000		366,750
4.50% debentures due 2015	—		—		—		245,325		249,645		294,581
0.75% debentures due 2027	79		79		76		79		79		80
	$	693,591	$	700,079	$	821,969	$	938,280	$	949,724	$	1,019,411

¹  The fair value of the convertible debt was determined using Level 2 inputs based on quarterly market prices as reported by an independent pricing source.

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Segment Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 29, 2015	Mar. 30, 2014	Dec. 28, 2014
Segment Reporting Information [Line Items]
Cost of revenue	$ 350,053	$ 529,433
Gross margin	90,818	162,989
Revenue	440,871	692,422
Stock-based compensation expense	(13,546)	(14,867)
Non-cash interest expense	(4,680)	(5,170)
Residential leases [Member]
Segment Reporting Information [Line Items]
Cost of revenue	122,772	132,687
Gross margin	32,552	32,031
Depreciation and amortization	10,172	6,035
Revenue	155,324	164,718
Commercial [Member]
Segment Reporting Information [Line Items]
Cost of revenue	46,880	64,463
Gross margin	2,183	12,041
Depreciation and amortization	3,407	2,803
Revenue	49,063	76,504
Power Plant [Member]
Segment Reporting Information [Line Items]
Cost of revenue	180,401	332,283
Gross margin	56,083	118,917
Depreciation and amortization	14,984	16,533
Revenue	236,484	451,200
Power Plant [Member] | Mid American Energy Holdings Company [Member]
Segment Reporting Information [Line Items]
Significant Customers as a Percentage Of Total Revenue	33.00%	42.00%
Revenue [Member] | Residential leases [Member]
Segment Reporting Information [Line Items]
Revenue	155,324	164,718
Revenue, As reviewed by CODM	155,324	164,718
Revenue [Member] | Commercial [Member]
Segment Reporting Information [Line Items]
Revenue	49,063	76,504
Revenue, As reviewed by CODM	49,063	76,504
Revenue [Member] | Power Plant [Member]
Segment Reporting Information [Line Items]
Revenue	236,484	451,200
Revenue, As reviewed by CODM	226,214	442,491
Revenue [Member] | Segment Reconciling Items [Member] | Residential leases [Member]
Segment Reporting Information [Line Items]
Revenue, Utility and power plant project	0	0
Stock-based compensation expense	0	0
Non-cash interest expense	0	0
Revenue, Other	0	0
Revenue [Member] | Segment Reconciling Items [Member] | Commercial [Member]
Segment Reporting Information [Line Items]
Revenue, Utility and power plant project	0	0
Stock-based compensation expense	0	0
Non-cash interest expense	0	0
Revenue, Other	0	0
Revenue [Member] | Segment Reconciling Items [Member] | Power Plant [Member]
Segment Reporting Information [Line Items]
Revenue, Utility and power plant project	10,270	8,709
Stock-based compensation expense	0	0
Non-cash interest expense	0	0
Revenue, Other	0	0
Gross margin [Member] | Residential leases [Member]
Segment Reporting Information [Line Items]
Gross margin	32,552	32,031
Gross margin, As a percentage of total revenues		19.44596%	20.95748%
Gross margin, As reviewed by CODM	35,278	33,213
Gross margin, As a percentage of total revenues (As reviewed by CODM)	22.71252%	20.16355%
Gross margin [Member] | Commercial [Member]
Segment Reporting Information [Line Items]
Gross margin	2,183	12,041
Gross margin, As a percentage of total revenues	4.44938%	15.73905%
Gross margin, As reviewed by CODM	3,025	12,675
Gross margin, As a percentage of total revenues (As reviewed by CODM)	6.16554%	16.56776%
Gross margin [Member] | Power Plant [Member]
Segment Reporting Information [Line Items]
Gross margin	56,083	118,917
Gross margin, As a percentage of total revenues	23.71535%	26.35572%
Gross margin, As reviewed by CODM	49,858	104,749
Gross margin, As a percentage of total revenues (As reviewed by CODM)	22.04019%	23.67257%
Gross margin [Member] | Segment Reconciling Items [Member] | Residential leases [Member]
Segment Reporting Information [Line Items]
Gross margin, Utility and power plant projects	0	0
Stock-based compensation expense	922	994
Non-cash interest expense	220	188
Gross margin, Other	1,584	0
Gross margin [Member] | Segment Reconciling Items [Member] | Commercial [Member]
Segment Reporting Information [Line Items]
Gross margin, Utility and power plant projects	0	0
Stock-based compensation expense	(388)	540
Non-cash interest expense	(55)	94
Gross margin, Other	(399)	0
Gross margin [Member] | Segment Reconciling Items [Member] | Power Plant [Member]
Segment Reporting Information [Line Items]
Gross margin, Utility and power plant projects	11,251	16,608
Stock-based compensation expense	(1,256)	2,022
Non-cash interest expense	(342)	418
Gross margin, Other	$ (3,428)	$ 0

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The Company and Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 29, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Property, Plant and Equipment

	As of
(In thousands)	March 29, 2015			December 28, 2014
Property, plant and equipment, net:
Manufacturing equipment3	$	556,730		$	554,124
Land and buildings	26,138			26,138
Leasehold improvements	237,713			236,867
Solar power systems4	126,350			124,848
Computer equipment	92,636			88,257
Furniture and fixtures	9,384			9,436
Construction-in-process	97,493			75,570
	1,146,444			1,115,240
Less: accumulated depreciation	(551,978		)	(529,896		)
	$	594,466		$	585,344

³  The Company's mortgage loan agreement with International Finance Corporation ("IFC") is collateralized by certain manufacturing equipment with a net book value of $107.7 million and $111.9 million as of March 29, 2015 and December 28, 2014, respectively.

⁴  Includes $95.4 million and $94.4 million of solar power systems associated with sale-leaseback transactions under the financing method as of March 29, 2015 and December 28, 2014, respectively, which are depreciated using the straight-line method to their estimated residual values over the lease terms of up to 20 years (see Note 5).

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Commitments and Contingencies (Details) (USD $)	3 Months Ended			0 Months Ended		12 Months Ended
	Mar. 29, 2015		Mar. 30, 2014	Mar. 19, 2014	Jan. 28, 2015	Dec. 28, 2014
Leases, Operating [Abstract]
Operating leases, future minimum payments due	$ 52,800,000
Operating lease, term	10 years
Capital Lease Obligations [Abstract]
Capital lease obligations	6,400,000
Capital leases, maximum term	10 years
Purchase commitments supply and price, term	10 years
Purchase Obligation, Fiscal Year Maturity [Abstract]
2015	646,615,000
2016	317,916,000
2017	343,806,000
2018	182,181,000
2019	175,695,000
Thereafter	164,847,000
Total	1,831,060,000	[1],[2],[3]
Future purchase obligations to related parties	81,800,000
Future purchase obligations related to non-cancellable purchase orders	203,200,000
Future purchase obligations related to long-term supply agreements	1,600,000,000
Advances to Suppliers [Abstract]
Advances to suppliers	395,800,000					409,700,000
Advances to suppliers, current portion	90,270,000					98,129,000
Advances From Customer, Maturity Profile [Abstract]
2015	19,382,000
2016	25,020,000
2017	27,039,000
2018	27,039,000
2019	28,842,000
Thereafter	43,263,000
Total	170,585,000
Related Party Transaction [Line Items]
Customer advances, current portion	27,367,000	[4]				31,788,000
Movement in Standard Product Warranty Accrual [Roll Forward]
Product Warranties, beginning	154,648,000		149,372,000			149,372,000
Accruals for warranties issued during the period	8,161,000		5,190,000
Settlements and adjustments during the period	(8,711,000)		3,147,000
Product Warranties, end	154,098,000		151,415,000
Future Financing Commitments [Line Items]
Product liability contingency, minimum performance threshold, buy-back obligation, term	2 years
Liabilities Associated with Uncertain Tax Positions [Abstract]
Unrecognized tax benefits	31,069,000					31,764,000
Unrecognized Tax Benefits Including Income Tax Penalties And Interest Accrued, Current	8,000,000
Unrecognized Tax Benefits Including Income Tax Penalties And Interest Accrued, Non-Current	23,069,000
Net loss on long-term pension liability adjustment	0
First Philec Arbitration [Member]
Loss Contingency [Abstract]
Loss contingency accrual recorded	63,000,000
Solar power systems [Member] | NRG Solar Inc. [Member] | Pending Litigation [Member]
Loss Contingency [Abstract]
Damages sought				75,000,000
First Philippine Solar Corporation [Member] | SunPower Philippines Manufacturing LTD [Member] | First Philec Arbitration [Member] | Judicial Ruling [Member] | Subsequent Event [Member]
Loss Contingency [Abstract]
Court required payments to third party to buyout minority interests, amount					30,300,000
Damages awarded					25,200,000
Other Noncurrent Liabilities [Member]
Liabilities Associated with Uncertain Tax Positions [Abstract]
Defined benefit plan, amounts recognized in Balance Sheet	10,800,000					10,000,000
AUOSP [Member]
Related Party Transaction [Line Items]
Customer advances and deposits	162,700,000					167,200,000
Customer advances, current portion	19,400,000					18,300,000
Future Financing Commitments [Line Items]
Future financing obligation, year one	$ 171,900,000
Supplier Concentration Risk [Member] | Supplier One [Member]
Concentration Risk [Line Items]
Concentration risk, percentage	83.00%					82.00%
Supplier Concentration Risk [Member] | Supplier Two [Member]
Concentration Risk [Line Items]
Concentration risk, percentage	17.00%					17.00%

[1] The Company did not fulfill all of the purchase commitments it was otherwise obligated to take by December 31, 2014, as specified in several related contracts with a supplier. As of March 29, 2015, the Company has recorded an offsetting asset, recorded within "Prepaid expenses and other current assets," and liability, recorded within "Accrued liabilities," totaling $50.4 million. This amount represents the unfulfilled amount as of that date as the Company expects to satisfy the obligation via purchases of inventory in fiscal 2015, within the cure period specified in the contracts.

[2] otal future purchase obligations as of March 29, 2015 include $81.8 million to related parties.

[3] Total future purchase obligations was composed of $203.2 million related to non-cancellable purchase orders and $1.6 billion related to long-term supply agreements.

[4] The Company has related-party balances for transactions made with Total and its affiliates as well as unconsolidated entities in which the Company has a direct equity investment. These related-party balances are recorded within the "Accounts Receivable, net," "Costs and estimated earnings in excess of billings," "Prepaid expenses and other current assets," "Other long-term assets," "Accounts payable," "Customer advances, current portion," "Convertible debt, net of current portion," and "Customer advances, net of current portion" financial statement line items in the Consolidated Balance Sheets (see Note 2, Note 6, Note 9, Note 10, and Note 11).

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Goodwill and Other Intangible Assets - Goodwill RollForward (Details) (USD $) In Thousands, unless otherwise specified	Mar. 29, 2015
Residential leases [Member]
Goodwill [Roll Forward]
Goodwill, beginning of period	$ 20,771
Goodwill, end of period	20,771
Power Plant [Member]
Goodwill [Roll Forward]
Goodwill, beginning of period	440
Goodwill, end of period	$ 440

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Segment Information (Tables)

3 Months Ended

Mar. 29, 2015

Segment Reporting [Abstract]

Schedule of segment reporting information

The following tables present information by end-customer segment including revenue, gross margin, and depreciation and amortization, as well as revenue by geography, based on the destination of the shipments:

	Three Months Ended
(In thousands)	March 29, 2015		March 30, 2014
Revenue
Distributed Generation
Residential	155,324		164,718
Commercial	49,063		76,504
Power Plant	236,484		451,200
Total revenue	440,871		692,422
Cost of revenue
Distributed Generation
Residential	122,772		132,687
Commercial	46,880		64,463
Power Plant	180,401		332,283
Total cost of revenue	350,053		529,433
Gross margin
Distributed Generation
Residential	32,552		32,031
Commercial	2,183		12,041
Power Plant	56,083		118,917
Total gross margin	$	90,818	$	162,989

	Three Months Ended
Depreciation and amortization by segment (in thousands):	March 29, 2015		March 30, 2014
Distributed Generation
Residential	$	10,172	$	6,035
Commercial	$	3,407	$	2,803
Power Plant	$	14,984	$	16,533

Schedule of revenue by major customers

The following tables present information by significant customers and categories:

		Three Months Ended
(As a percentage of total revenue)		March 29, 2015		March 30, 2014
Significant Customers:	Business Segment
MidAmerican Energy Holdings Company	Power Plant	33	%	42	%

Revenue from significant category

	Three Months Ended
(As a percentage of total revenue)	March 29, 2015		March 30, 2014
Revenue by geography:
United States	67	%	68	%
Japan	16	%	13	%
Rest of World	17	%	19	%
	100	%	100	%

Reconciliation of segment revenue and gross margin

A reconciliation of the Company's segment revenue and gross margin to its consolidated financial statements for the three months ended March 29, 2015, and March 30, 2014 is as follows:

	Three Months Ended March 29, 2015
	Revenue						Gross margin
Revenue and Gross margin by segment (in thousands, except percentages):	Residential		Commercial		Power Plant		Residential					Commercial					Power Plant
As reviewed by CODM	$	155,324	$	49,063	$	226,214	$	35,278		22.7	%	$	3,025		6.2	%	$	49,858		22.0	%
Utility and power plant projects	—		—		10,270		—					—					11,251
Stock-based compensation	—		—		—		(922		)			(388		)			(1,256		)
Non-cash interest expense	—		—		—		(220		)			(55		)			(342		)
Other	—		—		—		(1,584		)			(399		)			(3,428		)
GAAP	$	155,324	$	49,063	$	236,484	$	32,552		21.0	%	$	2,183		4.4	%	$	56,083		23.7	%

	Three Months Ended March 30, 2014
	Revenue						Gross margin
Revenue and Gross margin by segment (in thousands, except percentages):	Residential		Commercial		Power Plant		Residential					Commercial					Power Plant
As reviewed by CODM	$	164,718	$	76,504	$	442,491	$	33,213		20.2	%	$	12,675		16.6	%	$	104,749		23.7	%
Utility and power plant projects	—		—		8,709		—					—					16,608
Stock-based compensation	—		—		—		(994		)			(540		)			(2,022		)
Non-cash interest expense	—		—		—		(188		)			(94		)			(418		)
Other	—		—		—		—					—					—
GAAP	$	164,718	$	76,504	$	451,200	$	32,031		19.4	%	$	12,041		15.7	%	$	118,917		26.4	%

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Debt and Credit Sources (Details)	3 Months Ended																			3 Months Ended							1 Months Ended		3 Months Ended						1 Months Ended									3 Months Ended								3 Months Ended								1 Months Ended
	Mar. 29, 2015 USD ($)		Mar. 30, 2014 USD ($)	Dec. 28, 2014 USD ($)	Mar. 29, 2015 Bond Hedge [Member]	Mar. 29, 2015 Hooper Loan [Member] USD ($)	Mar. 29, 2015 Residential Lease Program [Member] USD ($)	Mar. 29, 2015 Unsecured Debt [Member] USD ($)	Dec. 28, 2014 Unsecured Debt [Member] USD ($)	Mar. 29, 2015 0.875% debentures due 2021 [Member] USD ($)	Dec. 28, 2014 0.875% debentures due 2021 [Member] USD ($)	Jun. 29, 2014 0.875% debentures due 2021 [Member] USD ($)	Mar. 29, 2015 0.75% debentures due 2018 [Member] USD ($)	Dec. 28, 2014 0.75% debentures due 2018 [Member] USD ($)	May 31, 2013 0.75% debentures due 2018 [Member] USD ($)	Mar. 29, 2015 4.50% debentures due 2015 [Member] USD ($)		Dec. 28, 2014 4.50% debentures due 2015 [Member] USD ($)	Jan. 02, 2011 4.50% debentures due 2015 [Member] USD ($)	Jan. 02, 2011 4.50% debentures due 2015 [Member] Cash Conversion Option [Member] USD ($)		Mar. 29, 2015 4.50% debentures due 2015 [Member] Bond Hedge [Member] USD ($)	Mar. 30, 2014 4.50% debentures due 2015 [Member] Bond Hedge [Member] USD ($)	Jan. 02, 2011 4.50% debentures due 2015 [Member] Bond Hedge [Member] USD ($)	Mar. 29, 2015 4.50% debentures due 2015 [Member] Warrants (Under the CSO2015) [Member] USD ($)	Mar. 30, 2014 4.50% debentures due 2015 [Member] Warrants (Under the CSO2015) [Member] USD ($)	Apr. 30, 2014 4.75% debentures due 2014 [Member] USD ($)	Mar. 29, 2015 4.75% debentures due 2014 [Member]	Mar. 29, 2015 4.75% debentures due 2014 [Member] Bond Hedge [Member] USD ($)	Feb. 28, 2014 4.75% debentures due 2014 [Member] Bond Hedge [Member] USD ($)	Mar. 29, 2015 4.75% debentures due 2014 [Member] Bond Hedge [Member] Maximum [Member]	Mar. 29, 2015 4.75% debentures due 2014 [Member] Warrants (Under the CSO2015) [Member] Maximum [Member]	Mar. 29, 2015 0.75% debentures due 2015 [Member] USD ($)	Dec. 28, 2014 0.75% debentures due 2015 [Member] USD ($)	May 31, 2010 IFC Mortgage Loan [Member] USD ($) installment	Mar. 29, 2015 IFC Mortgage Loan [Member] USD ($)	Dec. 28, 2014 IFC Mortgage Loan [Member] USD ($)	Mar. 29, 2015 CEDA Loan [Member] USD ($)	Dec. 28, 2014 CEDA Loan [Member] USD ($)	Mar. 29, 2015 Quinto Loan [Member] USD ($)	Dec. 28, 2014 Quinto Loan [Member] USD ($)	Oct. 17, 2014 Quinto Loan [Member] USD ($)	Mar. 29, 2015 Quinto Loan [Member] Letter of Credit [Member] USD ($)	Mar. 29, 2015 Quinto Loan [Member] Line of Credit [Member] USD ($)	Mar. 29, 2015 Quinto Loan [Member] Minimum [Member] Line of Credit [Member]	Mar. 29, 2015 Quinto Loan [Member] Maximum [Member] Line of Credit [Member]	Mar. 29, 2015 Other Debt [Member] USD ($)		Dec. 28, 2014 Other Debt [Member] USD ($)	Mar. 30, 2014 Other Debt [Member] USD ($)	Mar. 30, 2014 Other Debt [Member] ILS	Mar. 29, 2015 July 2013 Credit Agricole Syndicated Revolver [Member] Line of Credit [Member] Credit Agricole [Member] USD ($)	Mar. 29, 2015 July 2013 Credit Agricole Syndicated Revolver [Member] Minimum [Member] Line of Credit [Member] Credit Agricole [Member]	Mar. 29, 2015 July 2013 Credit Agricole Syndicated Revolver [Member] Maximum [Member] Line of Credit [Member] Credit Agricole [Member]	Mar. 29, 2015 August 2011 Letter of Credit [Member] Letter of Credit [Member] Deutsche Bank [Member] USD ($)	Dec. 28, 2014 August 2011 Letter of Credit [Member] Letter of Credit [Member] Deutsche Bank [Member] USD ($)	Mar. 29, 2015 September 2011 Letter of Credit [Member] Letter of Credit [Member] Deutsche Bank [Member] USD ($)	Dec. 28, 2014 September 2011 Letter of Credit [Member] Letter of Credit [Member] Deutsche Bank [Member] USD ($)	May 31, 2013 Total [Member] 0.75% debentures due 2018 [Member] USD ($)	Feb. 28, 2014 Warrant (Under the CSO2014) [Member] USD ($)	Mar. 29, 2015 Warrant (Under the CSO2014) [Member] USD ($)	May 31, 2009 Warrant (Under the CSO2014) [Member] USD ($)	Mar. 29, 2015 Warrant (Under the CSO2014) [Member] Maximum [Member]	Mar. 29, 2015 Warrants (Under the CSO2015) [Member] USD ($)	Feb. 28, 2012 Upfront Warrants (held by Total) [Member] Total [Member] USD ($)	Mar. 29, 2015 Convertible Debt [Member] USD ($)		Dec. 28, 2014 Convertible Debt [Member] USD ($)	Mar. 29, 2015 Convertible Debt [Member] 0.875% debentures due 2021 [Member] USD ($)		Dec. 28, 2014 Convertible Debt [Member] 0.875% debentures due 2021 [Member] USD ($)	Mar. 29, 2015 Convertible Debt [Member] 0.75% debentures due 2018 [Member] USD ($)		Dec. 28, 2014 Convertible Debt [Member] 0.75% debentures due 2018 [Member] USD ($)	Mar. 29, 2015 Convertible Debt [Member] 4.50% debentures due 2015 [Member] USD ($)		Dec. 28, 2014 Convertible Debt [Member] 4.50% debentures due 2015 [Member] USD ($)	May 31, 2009 Convertible Debt [Member] 4.75% debentures due 2014 [Member] USD ($)	Mar. 29, 2015 Convertible Debt [Member] 0.75% debentures due 2015 [Member] USD ($)		Dec. 28, 2014 Convertible Debt [Member] 0.75% debentures due 2015 [Member] USD ($)	Mar. 29, 2015 Other Noncurrent Liabilities [Member] Designated as Hedging Instrument [Member] Interest Rate Contract [Member] USD ($)	Dec. 28, 2014 Other Noncurrent Liabilities [Member] Designated as Hedging Instrument [Member] Interest Rate Contract [Member] USD ($)
Debt Instrument [Line Items]
Derivative Asset, Notional Amount																																																																																		$ 45,500,000	$ 247,000,000
Debt instrument, face value	1,012,418,000			1,180,103,000		22,600,000		8,500,000	8,600,000	400,000,000	400,000,000	400,000,000	300,000,000	300,000,000	300,000,000	0	[1]	249,645,000	250,000,000.0														79,000	79,000	75,000,000	40,000,000	47,500,000	30,000,000	30,000,000	128,841,000	61,481,000						113,498,000	[1]	91,398,000										200,000,000							700,079,000		949,724,000	400,000,000		400,000,000	300,000,000		300,000,000	0		249,645,000	230,000,000	79,000		79,000
Short-term	17,020,000			262,271,000			1,500,000			0	0		0	0			[1]	245,325,000															0	0		15,000,000	14,983,000	0	0	0	0						2,020,000	[1]	1,963,000
Long-term	984,653,000			901,912,000			79,100,000			395,922,000	395,475,000		297,590,000	297,401,000		0	[1]	0															79,000	79,000		24,081,000	31,492,000	27,479,000	27,379,000	128,841,000	61,481,000						110,661,000	[1]	88,605,000
Debt instruments, carrying value	1,001,673,000			1,164,183,000						395,922,000	395,475,000		297,590,000	297,401,000		0	[1]	245,325,000															79,000	79,000		39,081,000	46,475,000	27,479,000	27,379,000	128,841,000	61,481,000						112,681,000	[1]	90,568,000	40,700,000	141,800,000
Long-term Debt, Fiscal Year Maturity [Abstract]
2015	9,074,000
2016	23,056,000
2017	23,983,000
2018	308,531,000
2019	9,929,000
Thereafter	637,845,000
Debt instrument, face value	1,012,418,000			1,180,103,000		22,600,000		8,500,000	8,600,000	400,000,000	400,000,000	400,000,000	300,000,000	300,000,000	300,000,000	0	[1]	249,645,000	250,000,000.0														79,000	79,000	75,000,000	40,000,000	47,500,000	30,000,000	30,000,000	128,841,000	61,481,000						113,498,000	[1]	91,398,000										200,000,000							700,079,000		949,724,000	400,000,000		400,000,000	300,000,000		300,000,000	0		249,645,000	230,000,000	79,000		79,000
Convertible Debt [Abstract]
Convertible debt, current portion	0			245,325,000																																																																							0		245,325,000
Convertible Debt, Noncurrent	693,591,000	[2]		692,955,000																																																														693,591,000		938,280,000	395,922,000		395,475,000	297,590,000		297,401,000					79,000		79,000
Debt instrument, face value	1,012,418,000			1,180,103,000		22,600,000		8,500,000	8,600,000	400,000,000	400,000,000	400,000,000	300,000,000	300,000,000	300,000,000	0	[1]	249,645,000	250,000,000.0														79,000	79,000	75,000,000	40,000,000	47,500,000	30,000,000	30,000,000	128,841,000	61,481,000						113,498,000	[1]	91,398,000										200,000,000							700,079,000		949,724,000	400,000,000		400,000,000	300,000,000		300,000,000	0		249,645,000	230,000,000	79,000		79,000
Fair Value																																																																		821,969,000	[3]	1,019,411,000	399,688,000	[3]	358,000,000	422,205,000	[3]	366,750,000	0	[3]	294,581,000		76,000	[3]	80,000
Interest rate					4.75%					0.875%		0.875%	0.75%		0.75%	4.50%												4.75%
Debt instrument, convertible, conversion price (in dollars per share)										$ 48.76			$ 24.95		$ 24.95
Exercise price (in dollars per share)																				$ 22.53	[4]			$ 22.53					$ 26.40
Repayments of Convertible Debt	324,273,000		(1,000)
Recognized non-cash loss																						(52,000,000)	19,100,000		(52,000,000)	19,100,000
Non-cash interest expense	4,680,000		5,170,000
Warrant or right, number of securities called by each warrant or right (in shares)																																11,100,000																															8,700,000		9,531,677
Proceeds from settlement of 4.50% Bond Hedge	74,628,000		0
Class of warrant or right, exercise price of warrants or rights (in dollars per share)																																																													$ 26.40	$ 26.40		$ 24.00	$ 7.8685
Issuance of common stock upon conversion of convertible debt (in shares)																											7,100,000
Cash paid for settlement of debt																											41,700,000
Option Indexed to Issuer's Equity, Indexed Shares																															8,700,000
Warrants in full, paid cash settlement																														68,800,000
Debt instrument, delayed repayment, deferment term																																			2 years
Debt instrument, number of installment payments																																			10
Debt instrument, basis spread on variable rate																																			3.00%
Debt instrument, borrowing fee, percent of principal																																			1.00%
Debt instrument, commitment fee																																			0.50%
Debt instrument, prepayment premium																																			1.00%
Restricted cash and cash equivalents																																				9,200,000	9,200,000
Debt instrument, term	19 years
Other commitment																																								139,000,000
Line of Credit Facility [Abstract]
Line of credit facility, current borrowing capacity																																																				250,000,000
Liquidity support facility, maximum capacity																																										377,000,000	59,000,000	318,000,000								300,000,000.0					200,000,000
Line of credit facility, basis spread on base loan, period two																																																					0.50%	1.00%
Line of credit facility, basis spread on federal funds rate, period two																																																				0.50%
Line of credit facility, basis spread on libor rate, period two																																																				1.00%
Line of credit facility, unused capacity, commitment fee percentage, period two																																																					0.25%	0.35%
Line of credit facility, basis spread																																													1.625%	1.875%
Line of credit facility, basis spread on base loan rate																																													0.625%	0.875%
Line of credit facility, basis spread on federal funds																																												0.50%
Line of credit facility, basis spread on libor rate																																												1.00%
Line of credit facility, unused capacity, commitment fee percentage																																												0.50%
Proceeds from issuance of non-recourse debt financing, net of issuance costs	0		39,108,000
Line of credit facility, basis spread, period two																																																					1.50%	2.00%
Letter of credit facility, maximum borrowing capacity, in 2014																																																							878,000,000
Letter of credit facility, maximum borrowing capacity, in 2015																																																							936,000,000
Letter of credit facility, maximum borrowing capacity, in 2016																																																							1,000,000,000
Letters of Credit outstanding, amount																																																							559,200,000	654,700,000	19,100,000	1,600,000
Payments for Repurchase of Warrants																																																												$ 81,100,000

[1] Other debt excludes payments related to capital leases, which are disclosed in Note 8.

[2] The Company has related-party balances for transactions made with Total and its affiliates as well as unconsolidated entities in which the Company has a direct equity investment. These related-party balances are recorded within the "Accounts Receivable, net," "Costs and estimated earnings in excess of billings," "Prepaid expenses and other current assets," "Other long-term assets," "Accounts payable," "Customer advances, current portion," "Convertible debt, net of current portion," and "Customer advances, net of current portion" financial statement line items in the Consolidated Balance Sheets (see Note 2, Note 6, Note 9, Note 10, and Note 11).

[3] The fair value of the convertible debt was determined using Level 2 inputs based on quarterly market prices as reported by an independent pricing source.

[4] The valuation model utilizes these inputs to value the right but not the obligation to purchase one share of the Company's common stock at $22.53. The Company utilized a Black-Scholes valuation model to value the 4.50% Bond Hedge and embedded cash conversion option. The underlying input assumptions were determined as follows:(i)Stock price. The closing price of the Company's common stock on the last trading day of the quarter.(ii)Exercise price. The exercise price of the 4.50% Bond Hedge and the embedded cash conversion option.(iii)Interest rate. The Treasury Strip rate associated with the life of the 4.50% Bond Hedge and the embedded cash conversion option.(iv)Stock volatility. The volatility of the Company's common stock over the life of the 4.50% Bond Hedge and the embedded cash conversion option.(v)Credit risk adjustment. Represents the weighted average of the credit default swap rate of the counterparties.

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Leasing (Details) (USD $)	3 Months Ended
	Mar. 29, 2015		Mar. 30, 2014	Dec. 28, 2014
Leasing [Line Items]
Capital leases, maximum term	20 years
Solar power systems leased and to be leased [Abstract]
Solar power systems leased, gross	$ 429,687,000	[1],[2]		$ 396,704,000
Solar power systems to be leased, gross	28,683,000	[1],[2]		21,202,000
Solar Power Systems Leased And To Be Leased, Gross	458,370,000	[1],[2]		417,906,000
Accumulated depreciation - residential lease	(31,183,000)	[1],[2]		26,993,000
Solar Power Systems Leased And To Be Leased, Net	427,187,000	[1],[2]		390,913,000
Pledged Solar Assets, book value	82,100,000			140,100,000
Operating Leases, Future Minimum Payments Receivable [Abstract]
2015	12,888,000	[3]
2016	15,165,000	[3]
2017	15,206,000	[3]
2018	15,255,000	[3]
2019	15,303,000	[3]
Thereafter	218,379,000	[3]
Minimum future rental receipts	292,196,000	[3]
Financing receivables:
Financing receivable, gross	351,029,000	[4],[5]		319,244,000
Unguaranteed residual value	37,775,000			34,343,000
Unearned income	(78,769,000)			74,859,000
Net financing receivables	310,035,000			278,728,000
Current	11,250,000			9,141,000
Long-term	298,785,000			269,587,000
Capital Leases, Future Minimum Payments Receivable, Fiscal Year Maturity [Abstract]
2015	12,938,000	[5]
2016	17,172,000	[5]
2017	17,369,000	[5]
2018	17,574,000	[5]
2019	17,784,000	[5]
Thereafter	268,192,000	[5]
Financing receivable, gross	351,029,000	[4],[5]		319,244,000
Third-Party Financing Arrangements [Abstract]
Non-recourse debt	20,300,000			28,600,000
Contributions from noncontrolling interests	45,890,000		30,552,000
Net income (loss) attributable to noncontrolling interest - leasing operations	19,600,000
Net loss attributable to noncontrolling interests and redeemable noncontrolling interests	19,469,000		(22,010,000)
Sale-Leaseback [Abstract]
Sale leaseback transactions, lease term	20 years
Future minimum lease obligations	93,100,000
Operating lease, term	20 years
Sale leaseback, minimum lease obligation	$ 99,400,000

[1] As of March 29, 2015 and December 28, 2014, the Company has pledged solar assets with an aggregate book value of $82.1 million and $140.1 million, respectively, to third-party investors as security for the Company's contractual obligations.

[2] Solar power systems leased and to be leased, net are physically located in the United States.

[3] Minimum future rentals on operating leases placed in service does not include contingent rentals that may be received from customers under agreements that include performance-based incentives.

[4] 1 Net of allowance for doubtful accounts.

[5] Minimum future rentals on sales-type leases placed in service does not include contingent rentals that may be received from customers under agreements that include performance-based incentives.

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The Company and Summary of Significant Accounting Policies

3 Months Ended

Mar. 29, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

The Company and Summary of Significant Accounting Policies

THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

The Company

SunPower Corporation (together with its subsidiaries, the "Company" or "SunPower") is a vertically integrated solar energy products and solutions company that designs, manufactures and delivers high-performance solar systems worldwide, serving as a one-stop shop for residential, commercial and utility-scale power plant customers. SunPower Corporation is a majority owned subsidiary of Total Energies Nouvelles Activités USA("Total"), a subsidiary of Total S.A. ("Total S.A.") (see Note 2).

In the first quarter of fiscal 2015, in connection with a realignment of its internal organizational structure, the Company changed its segment reporting from its Americas, EMEA and APAC Segments to three end-customer segments: (i) Residential Segment, (ii) Commercial Segment and (iii) Power Plant Segment. The Residential and Commercial Segments combined are referred to as Distributed Generation. Historically, the Americas Segment included both North and South America, the EMEA Segment included European countries as well as the Middle East and Africa, and the APAC Segment included all Asia-Pacific countries.

Under the new segmentation, the Company’s Residential Segment refers to sales of solar energy solutions to residential end customers through a variety of means, including cash sales and long-term leases directly to end customers, sales to resellers, including the Company's third-party global dealer network, and sales of the Company's operations and maintenance (“O&M”) services.  The Company’s Commercial Segment refers to sales of solar energy solutions to commercial and public entity end customers through a variety of means, including direct sales of turn-key engineering, procurement and construction ("EPC") services, sales to the Company's third-party global dealer network, sales of energy under power purchase agreements ("PPAs"), and sales of the Company's O&M services. The Power Plant Segment refers to the Company's large-scale solar products and systems business, which includes power plant project development and project sales, EPC services for power plant construction, power plant O&M services and component sales for power plants developed by third-parties, sometimes on a multi-year, firm commitment basis. 

The Company’s President and Chief Executive Officer, as the chief operating decision maker (“CODM”), reviews the Company's business and manages resource allocations and measures performance of the Company’s activities among these three end-customer segments.

Reclassifications of prior period segment information have been made to conform to the current period presentation. This change does not affect the Company's previously reported Consolidated Financial Statements.

Basis of Presentation and Preparation

Principles of Consolidation

The consolidated financial statements are prepared in accordance with accounting principles generally accepted in the United States of America ("United States" or "U.S.") and include the accounts of the Company, all of its subsidiaries and special purpose entities, as appropriate under consolidation accounting guidelines. Intercompany transactions and balances have been eliminated in consolidation. The assets of the special purpose entities that the Company sets up related to project financing for customers are not designed to be available to service the general liabilities and obligations of the Company in certain circumstances.

Reclassifications

Certain prior period balances, including prior period segment information, have been reclassified to conform to the current period presentation in the Company's consolidated financial statements and the accompanying notes. Such reclassifications had no effect on previously reported results of operations or accumulated deficit.

Fiscal Years

The Company has a 52-to-53-week fiscal year that ends on the Sunday closest to December 31. Accordingly, every fifth or sixth year will be a 53-week fiscal year. The current fiscal year, fiscal 2015, consists of 53 weeks, including a 14-week fourth fiscal quarter, while fiscal year 2014 consists of 52 weeks. The first quarter of fiscal 2015 ended on March 29, 2015, while the first quarter of fiscal 2014 ended on March 30, 2014. The first quarter of fiscal 2015 and fiscal 2014 were both 13-week quarters.

Management Estimates

The preparation of the consolidated financial statements in conformity with U.S. generally accepted accounting principles ("U.S. GAAP") requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Significant estimates in these consolidated financial statements include percentage-of-completion for construction projects; allowances for doubtful accounts receivable and sales returns; inventory and project asset write-downs; stock-based compensation; estimates for future cash flows and economic useful lives of property, plant and equipment, goodwill, valuations for business combinations, other intangible assets and other long-term assets; the fair value and residual value of leased solar power systems; fair value of financial instruments; valuation of contingencies and certain accrued liabilities such as accrued warranty; and income taxes and tax valuation allowances. Actual results could materially differ from those estimates.

Recent Accounting Pronouncements

In April 2015, the Financial Accounting Standards Board ("FASB") issued an update to the standards to provide a practical expedient for the measurement date of defined benefit obligation and plan assets for reporting entities with fiscal year-ends that do not coincide with a month-end. The updated standard allows such entities to measure defined benefit plan assets and obligations using the month-end that is closest to the entity's fiscal year-end and apply that practical expedient consistently from year to year and to all plans, if an entity has more than one plan. The new practical expedient guidance is effective for the Company no later than the first quarter of fiscal 2016 and requires a prospective approach to adoption. Early adoption is permitted. The Company is evaluating the potential impact of this standard on its consolidated financial statements and disclosures.

In April 2015, the FASB issued an update to the standards for the presentation of debt issuance costs to reduce complexity in accounting standards and to align with IFRS. The updated standard requires debt issuance costs to be presented in the balance sheet as a direct deduction from the carrying value of the associated debt liability. U.S. generally accepted accounting principles previously required debt issuance costs to be reflected as an asset on the Company's balance sheet. The new debt issuance cost guidance is effective for the Company no later than the first quarter of fiscal 2016 and requires a retrospective approach to adoption. The Company has elected early adoption of the updated accounting standard, effective in the first quarter of fiscal 2015, resulting in the reclassification of $11.6M of debt issuance costs from "Other long-term assets" to "Long-term debt" and "Convertible debt, net of current portion" in the Consolidated Balance Sheets as of December 28, 2014.

In February 2015, the FASB issued a new standard that modifies existing consolidation guidance for reporting organizations that are required to evaluate whether they should consolidate certain legal entities. The new consolidation guidance is effective for the Company in the first quarter of fiscal 2016 and requires either a retrospective or a modified retrospective approach to adoption. Early adoption is permitted.  The Company is evaluating the available methods and the potential impact of this standard on its consolidated financial statements and disclosures.

In May 2014, the FASB issued a new revenue recognition standard based on the principle that revenue is recognized to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods and services. The new revenue recognition standard becomes effective for the Company in the first quarter of fiscal 2017 and is to be applied retrospectively using one of two prescribed methods. The Company is evaluating the application method and impact on its consolidated financial statements and disclosures.

Other than as described above, there has been no issued accounting guidance not yet adopted by the Company that it believes is material or potentially material to its consolidated financial statements.

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Goodwill and Other Intangible Assets - Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	Mar. 29, 2015	Dec. 28, 2014
Acquired Finite-Lived Intangible Assets [Line Items]
Other intangible assets, accumulated amortization	$ 1,088	$ 615
Other intangible assets, net	16,787	16,760
Patents and Purchased Technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Other intangible assets, gross	13,675	13,675
Other intangible assets, accumulated amortization	1,088	615
Other intangible assets, net	12,587	13,060
Purchased In-Process Research and Development [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Other intangible assets, gross	3,700	3,700
Other intangible assets, accumulated amortization	0	0
Other intangible assets, net	3,700	3,700
Other Intangible Assets [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Other intangible assets, gross	500
Other intangible assets, accumulated amortization	0
Other intangible assets, net	500
Series of Individually Immaterial Business Acquisitions [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	$ 17,875	$ 17,375

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Leasing (Tables)

3 Months Ended

Mar. 29, 2015

Leases [Abstract]

Schedule of property subject to or available for operating lease

The following table summarizes "Solar power systems leased and to be leased, net" under operating leases on the Company's Consolidated Balance Sheets as of March 29, 2015 and December 28, 2014:

	As of
(In thousands)	March 29, 2015			December 28, 2014
Solar power systems leased and to be leased, net1,2:
Solar power systems leased	$	429,687		$	396,704
Solar power systems to be leased	28,683			21,202
	458,370			417,906
Less: accumulated depreciation	(31,183		)	(26,993		)
	$	427,187		$	390,913

¹  Solar power systems leased and to be leased, net are physically located in the United States.

²  As of March 29, 2015 and December 28, 2014, the Company has pledged solar assets with an aggregate book value of $82.1 million and $140.1 million, respectively, to third-party investors as security for the Company's contractual obligations.

Schedule of minimum future rental receipts on operating leases placed in service

The following table presents the Company's minimum future rental receipts on operating leases placed in service as of March 29, 2015:

(In thousands)	Fiscal 2015 (remaining nine months)		Fiscal 2016	Fiscal 2017	Fiscal 2018	Fiscal 2019	Thereafter	Total
Minimum future rentals on operating leases placed in service1	$	12,888	15,165	15,206	15,255	15,303	218,379	$	292,196

¹  Minimum future rentals on operating leases placed in service does not include contingent rentals that may be received from customers under agreements that include performance-based incentives.

Schedule of accounts, notes, loans and financing receivable

As of March 29, 2015 and December 28, 2014, respectively, the Company's net investment in sales-type leases presented in "Accounts receivable, net" and "Long-term financing receivables, net" on the Company's Consolidated Balance Sheets was as follows:

	As of
(In thousands)	March 29, 2015			December 28, 2014
Financing receivables:
Minimum lease payments receivable1	$	351,029		$	319,244
Unguaranteed residual value	37,775			34,343
Unearned income	(78,769		)	(74,859		)
Net financing receivables	$	310,035		$	278,728
Current	$	11,250		$	9,141
Long-term	$	298,785		$	269,587

¹  Net of allowance for doubtful accounts.

Schedule of future maturities of net financing receivables

As of March 29, 2015, future maturities of net financing receivables for sales-type leases are as follows:

(In thousands)	Fiscal 2015 (remaining nine months)		Fiscal 2016	Fiscal 2017	Fiscal 2018	Fiscal 2019	Thereafter	Total
Scheduled maturities of minimum lease payments receivable1	$	12,938	17,172	17,369	17,574	17,784	268,192	$	351,029

¹  Minimum future rentals on sales-type leases placed in service does not include contingent rentals that may be received from customers under agreements that include performance-based incentives.

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Balance Sheet Components (Tables)

3 Months Ended

Mar. 29, 2015

Balance Sheet Related Disclosures [Abstract]

Schedule of Accounts Receivable

	As of
(In thousands)	March 29, 2015			December 28, 2014
Accounts receivable, net:
Accounts receivable, gross1,2	$	485,614		$	523,613
Less: allowance for doubtful accounts	(17,226		)	(18,152		)
Less: allowance for sales returns	(520		)	(1,145		)
	$	467,868		$	504,316

¹  Includes short-term financing receivables associated with solar power systems leased of $11.3 million and $9.1 million as of March 29, 2015 and December 28, 2014, respectively (see Note 5).

²  Includes short-term retainage of $240.3 million and $213.0 million as of March 29, 2015 and December 28, 2014, respectively. Retainage refers to the earned, but unbilled, portion of a construction and development project for which payment is deferred by the customer until certain contractual milestones are met.

Schedule of Inventory

	As of
(In thousands)	March 29, 2015		December 28, 2014
Inventories:
Raw materials	$	71,552	$	46,848
Work-in-process	85,800		67,903
Finished goods	145,235		93,822
	$	302,587	$	208,573

Schedule of Prepaid Expenses and Other Current Assets

	As of
(In thousands)	March 29, 2015		December 28, 2014
Prepaid expenses and other current assets:
Deferred project costs	$	57,989	$	64,784
Bond hedge derivative	—		51,951
VAT receivables, current portion	6,628		7,554
Deferred costs for solar power systems to be leased	26,633		22,537
Derivative financial instruments	12,196		7,018
Prepaid inventory	50,395		—
Other receivables	92,924		79,927
Other prepaid expenses	54,923		47,448
Other current assets	44,137		47,626
	$	345,825	$	328,845

Schedule Investments In Power And Distribution Projects

	As of
(In thousands)	March 29, 2015		December 28, 2014
Project assets - plants and land:
Project assets — plants	$	196,890	$	104,328
Project assets — land	12,154		12,328
	$	209,044	$	116,656
Project assets — plants and land, current portion	$	179,650	$	101,181
Project assets — plants and land, net of current portion	$	29,394	$	15,475

Schedule of Property, Plant and Equipment

	As of
(In thousands)	March 29, 2015			December 28, 2014
Property, plant and equipment, net:
Manufacturing equipment3	$	556,730		$	554,124
Land and buildings	26,138			26,138
Leasehold improvements	237,713			236,867
Solar power systems4	126,350			124,848
Computer equipment	92,636			88,257
Furniture and fixtures	9,384			9,436
Construction-in-process	97,493			75,570
	1,146,444			1,115,240
Less: accumulated depreciation	(551,978		)	(529,896		)
	$	594,466		$	585,344

³  The Company's mortgage loan agreement with International Finance Corporation ("IFC") is collateralized by certain manufacturing equipment with a net book value of $107.7 million and $111.9 million as of March 29, 2015 and December 28, 2014, respectively.

⁴  Includes $95.4 million and $94.4 million of solar power systems associated with sale-leaseback transactions under the financing method as of March 29, 2015 and December 28, 2014, respectively, which are depreciated using the straight-line method to their estimated residual values over the lease terms of up to 20 years (see Note 5).

Schedule of Property, Plant and Equipment by Geographic Region

	As of
(In thousands)	March 29, 2015		December 28, 2014
Property, plant and equipment, net by geography5:
Philippines	$	345,803	$	335,643
United States	182,362		183,631
Mexico	40,393		40,251
Europe	24,620		24,748
Other	1,288		1,071
	$	594,466	$	585,344

⁵  Property, plant and equipment, net by geography is based on the physical location of the assets.

Schedule of Other Long-Term Assets

	As of
(In thousands)	March 29, 2015		December 28, 2014
Other long-term assets:
Equity method investments	$	213,089	$	210,898
Cost method investments	32,277		32,308
Other	61,644		57,023
	$	307,010	$	300,229

Schedule of Accrued Liabilities

	As of
(In thousands)	March 29, 2015		December 28, 2014
Accrued liabilities:
Bond hedge derivatives	$	—	$	51,951
Employee compensation and employee benefits	36,355		47,667
Deferred revenue	27,075		33,412
Short-term residential lease financing	1,270		1,489
Interest payable	11,703		10,575
Short-term warranty reserves	14,467		13,278
Restructuring reserve	9,130		13,477
VAT payables	7,316		6,073
Derivative financial instruments	2,715		1,345
Inventory payable	50,395		—
Other	109,065		151,767
	$	269,491	$	331,034

Schedule of Other Long-Term Liabilities

	As of
(In thousands)	March 29, 2015		December 28, 2014
Other long-term liabilities:
Deferred revenue	$	178,602	$	176,804
Long-term warranty reserves	139,630		141,370
Long-term sale-leaseback financing	112,240		111,904
Long-term residential lease financing	19,032		27,122
Unrecognized tax benefits	23,069		31,764
Long-term pension liability	10,780		9,980
Derivative financial instruments	10,548		3,712
Other	49,072		52,688
	$	542,973	$	555,344

Schedule of Accumulated Other Comprehensive Income (Loss)

	As of
(In thousands)	March 29, 2015			December 28, 2014
Accumulated other comprehensive loss:
Cumulative translation adjustment	$	(10,715	)	$	(8,712	)
Net unrealized loss on derivatives	(5,631		)	(1,443		)
Net loss on long-term pension liability adjustment	(2,878		)	(2,878		)
Deferred taxes	(311		)	(422		)
	$	(19,535	)	$	(13,455	)

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Stock-Based Compensation (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 29, 2015	Mar. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 13,546	$ 14,867
Restricted stock units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	14,504	14,876
Change in stock-based compensation capitalized in inventory [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	(958)	(9)
Cost of revenue [Member] | Americas [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	922	994
Cost of revenue [Member] | EMEA [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	388	540
Cost of revenue [Member] | APAC [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	1,256	2,022
Research and development [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	2,273	1,797
Selling, general and administrative [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 8,707	$ 9,514

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Goodwill and Other Intangible Assets - Future Amortization (Details) (USD $) In Thousands, unless otherwise specified	Mar. 29, 2015	Dec. 28, 2014
Acquired Finite-Lived Intangible Assets [Line Items]
Total	$ 16,787	$ 16,760
Patents and Purchased Technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
2015	1,891
2016	2,114
2017	1,989
2018	1,989
2019	1,989
Thereafter	3,115
Total	13,087
Other Intangible Assets [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Total	$ 500

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Fair Value Measurements (Tables)

3 Months Ended

Mar. 29, 2015

Fair Value Disclosures [Abstract]

Summary of assets and liabilities measured and recorded at fair value on a recurring basis

The following table summarizes the Company's assets and liabilities measured and recorded at fair value on a recurring basis as of March 29, 2015 and December 28, 2014, respectively:

	March 29, 2015						December 28, 2014
(In thousands)	Total		Level 1		Level 2		Total		Level 1		Level 2
Assets
Cash and cash equivalents1:
Money market funds	$	170,000	$	170,000	$	—	$	375,000	$	375,000	$	—
Prepaid expenses and other current assets:
Debt derivatives (Note 10)	—		—		—		51,951		—		51,951
Derivative financial instruments (Note 11)	12,196		—		12,196		7,018		—		7,018
Total assets	$	182,196	$	170,000	$	12,196	$	433,969	$	375,000	$	58,969
Liabilities
Accrued liabilities:
Debt derivatives (Note 10)	$	—	$	—	$	—	$	51,951	$	—	$	51,951
Derivative financial instruments (Note 11)	2,715		—		2,715		1,345		—		1,345
Other long-term liabilities:
Derivative financial instruments (Note 11)	10,548		—		10,548		3,712		—		3,712
Total liabilities	$	13,263	$	—	$	13,263	$	57,008	$	—	$	57,008

¹The Company's cash equivalents consist of money market fund instruments and commercial paper that are classified as available-for-sale and are highly liquid investments with original maturities of 90 days or less. The Company's money market fund instruments are categorized within Level 1 of the fair value hierarchy because they are valued using quoted market prices for identical instruments in active markets.

Summary of fair value on derivative instruments

The fair values of these derivative instruments as of December 28, 2014 were determined utilizing the following Level 1 and Level 2 inputs:

	As of1
	December 28, 2014
Stock price	$	26.32
Exercise price	$	22.53
Interest rate	0.19		%
Stock volatility	61.7		%
Credit risk adjustment	0.65		%
Maturity date	February 18, 2015

¹  The valuation model utilizes these inputs to value the right but not the obligation to purchase one share of the Company's common stock at $22.53. The Company utilized a Black-Scholes valuation model to value the 4.50% Bond Hedge and embedded cash conversion option. The underlying input assumptions were determined as follows:

(i) Stock price. The closing price of the Company's common stock on the last trading day of the quarter.

(ii) Exercise price. The exercise price of the 4.50% Bond Hedge and the embedded cash conversion option.

(iii) Interest rate. The Treasury Strip rate associated with the life of the 4.50% Bond Hedge and the embedded cash conversion option.

(iv) Stock volatility. The volatility of the Company's common stock over the life of the 4.50% Bond Hedge and the embedded cash conversion option.

(v) Credit risk adjustment. Represents the weighted average of the credit default swap rate of the counterparties.

Schedule of related party transactions

Related-Party Transactions with Total and its Affiliates:

	Three Months Ended
(In thousands)	March 29, 2015			March 30, 2014
Revenue:
EPC, O&M, and components revenue under joint projects	$	199		$	2,889
Research and development expense:
Offsetting contributions received under R&D Agreement	$	(422	)	$	(260	)
Interest expense:
Guarantee fees incurred under Credit Support Agreement	$	2,726		$	2,745
Fees incurred under the Compensation and Funding Agreement	$	—		$	1,200
Interest expense incurred on the 0.75% debentures due 2018	$	375		$	375
Interest expense incurred on the 0.875% debentures due 2021	$	680		$	—

Related-Party Transactions with Investees:

	As of
(In thousands)	March 29, 2015		December 28, 2014
Accounts receivable	$	20,235	$	22,425
Accounts payable	$	26,252	$	50,039
Customer advances	$	1,212	$	4,210
Other long-term assets:
Long-term note receivable	$	1,553	$	1,623

	Three Months Ended
(In thousands)	March 29, 2015		March 30, 2014
Payments made to investees for products/services	$	119,177	$	105,010
Revenue from sales to investees of products/services	$	5,603	$	—

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Restructuring (Tables)

3 Months Ended

Mar. 29, 2015

Restructuring and Related Activities [Abstract]

Summary of restructuring and related costs

The following table summarizes the restructuring charges recognized in the Company's Consolidated Statements of Operations:

	Three Months Ended						Cumulative To Date
(In thousands)	March 29, 2015			March 30, 2014
November 2014 Plan:
Non-cash impairment charges	$	—		$	—		$	719
Severance and benefits	2,063			—			14,243
Other costs1	1,724			—			1,937
	3,787			—			16,899
Legacy Restructuring Plans:
Non-cash impairment charges	—			—			60,596
Severance and benefits	(132		)	(531		)	46,577
Lease and related termination costs	—			(402		)	5,774
Other costs1	(74		)	472			10,786
	(206		)	(461		)	123,733
Total restructuring charges	$	3,581		$	(461	)	$	140,632

Schedule of restructuring reserve

The following table summarizes the restructuring reserve activity during the fiscal year ended March 29, 2015:

	Three Months Ended
(In thousands)	December 28, 2014		Charges (Benefits)			Payments			March 29, 2015
November 2014 Plan:
Severance and benefits	$	12,075	$	2,063		$	(6,745	)	$	7,393
Other costs1	145		1,724			(852		)	1,017
	12,220		3,787			(7,597		)	8,410
Legacy Restructuring Plans:
Severance and benefits	421		(132		)	(144		)	145
Lease and related termination costs	390		—			(80		)	310
Other costs1	446		(74		)	(107		)	265
	1,257		(206		)	(331		)	720
Total restructuring liability	$	13,477	$	3,581		$	(7,928	)	$	9,130

¹  Other costs primarily represent associated legal services.

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Consolidated Statements of Cash Flows (Parentheticals)	Mar. 29, 2015
Bond Hedge [Member]
Interest rate	4.75%
4.75% debentures due 2014 [Member]
Interest rate	4.75%
4.50% debentures due 2015 [Member]
Interest rate	4.50%

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Commitments and Contingencies (Tables)

3 Months Ended

Mar. 29, 2015

Commitments and Contingencies Disclosure [Abstract]

Summary of unrecorded unconditional purchase obligations

Future purchase obligations under non-cancellable purchase orders and long-term supply agreements as of March 29, 2015 are as follows:

(In thousands)	Fiscal 2015 (remaining nine months)		Fiscal 2016	Fiscal 2017	Fiscal 2018	Fiscal 2019	Thereafter	Total1,2,3
Future purchase obligations	$	646,615	317,916	343,806	182,181	175,695	164,847	$	1,831,060

¹  Total future purchase obligations as of March 29, 2015 include $81.8 million to related parties.

²  Total future purchase obligations was composed of $203.2 million related to non-cancellable purchase orders and $1.6 billion related to long-term supply agreements.

³The Company did not fulfill all of the purchase commitments it was otherwise obligated to take by December 31, 2014, as specified in several related contracts with a supplier. As of March 29, 2015, the Company has recorded an offsetting asset, recorded within "Prepaid expenses and other current assets," and liability, recorded within "Accrued liabilities," totaling $50.4 million. This amount represents the unfulfilled amount as of that date as the Company expects to satisfy the obligation via purchases of inventory in fiscal 2015, within the cure period specified in the contracts.

Schedule of estimated utilization of advances from customers

The estimated utilization of advances from customers as of March 29, 2015 is as follows:

(In thousands)	Fiscal 2015 (remaining nine months)		Fiscal 2016	Fiscal 2017	Fiscal 2018	Fiscal 2019	Thereafter	Total
Estimated utilization of advances from customers	$	19,382	25,020	27,039	27,039	28,842	43,263	$	170,585

Schedule of product warranty liability

The following table summarizes accrued warranty activity for the three months ended March 29, 2015 and March 30, 2014, respectively:

	Three Months Ended
(In thousands)	March 29, 2015			March 30, 2014
Balance at the beginning of the period	$	154,648		$	149,372
Accruals for warranties issued during the period	8,161			5,190
Settlements and adjustments during the period	(8,711		)	(3,147		)
Balance at the end of the period	$	154,098		$	151,415

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Transactions with Total and Total S.A. (Details) (USD $)	1 Months Ended				3 Months Ended	1 Months Ended	3 Months Ended
	May 31, 2013	Jun. 29, 2014	Jun. 30, 2011	Dec. 31, 2011	Mar. 29, 2015	Feb. 28, 2012	Mar. 30, 2014	Dec. 28, 2014
Related Party Transaction [Line Items]
Debt instrument, face value					1,012,418,000			$ 1,180,103,000
Accounts receivable					20,235,000			22,425,000
Total [Member]
Related Party Transaction [Line Items]
Liquidity support facility, warrant, maximum ownership percentage allowed						74.99%
Compensation and Funding Agreement [Member] | Total [Member]
Related Party Transaction [Line Items]
Interest rate at period end					2.75%
0.75% debentures due 2018 [Member]
Related Party Transaction [Line Items]
Interest rate	0.75%				0.75%
Debt instrument, face value	300,000,000				300,000,000			300,000,000
Debt instrument, convertible, conversion price (in dollars per share)	$ 24.95				24.95
0.75% debentures due 2018 [Member] | Total [Member]
Related Party Transaction [Line Items]
Debt instrument, face value	200,000,000
Debt Instrument, convertible, number of shares converted	8,017,420
0.875% debentures due 2021 [Member]
Related Party Transaction [Line Items]
Interest rate		0.875%			0.875%
Debt instrument, face value		400,000,000			400,000,000			400,000,000
Debt instrument, convertible, conversion price (in dollars per share)					48.76
0.875% debentures due 2021 [Member] | Total [Member]
Related Party Transaction [Line Items]
Debt Instrument, convertible, number of shares converted		5,126,775
Tender Offer Agreement [Member] | Total [Member]
Related Party Transaction [Line Items]
Ownership after sale of stock, percentage			60.00%
Consideration received in cash tender offer (in dollars per share)			$ 23.25
Cash tender offer			1,400,000,000
Private Placement [Member] | Total [Member]
Related Party Transaction [Line Items]
Ownership after sale of stock, percentage				66.00%
Consideration received in cash tender offer (in dollars per share)				$ 8.80
Sale of Stock, Number of Shares Issued in Transaction				18,600,000.0
Total [Member] | Compensation and Funding Agreement [Member]
Related Party Transaction [Line Items]
Line of credit, fee rate					5.00%
Total [Member] | 0.875% debentures due 2021 [Member]
Related Party Transaction [Line Items]
Debt instrument, face value		250,000,000
Upfront Warrants (held by Total) [Member] | Total [Member]
Related Party Transaction [Line Items]
Warrant or right, number of securities called by each warrant or right (in shares)						9,531,677
Class of warrant or right, exercise price of warrants or rights (in dollars per share)						$ 7.8685
Class of warrant or right, term						7 years
Liquidity support facility, warrant, minimum amount of outstanding convertible debt required to be outstanding						25,000,000.0
Interest Expense [Member] | Credit Support Agreement [Member] | Total [Member]
Related Party Transaction [Line Items]
Interest Expense, Related Party					2,726,000		2,745,000
Interest Expense [Member] | Compensation and Funding Agreement [Member] | Total [Member]
Related Party Transaction [Line Items]
Interest Expense, Related Party					0		1,200,000
Interest Expense [Member] | 0.75% debentures due 2018 [Member] | Total [Member]
Related Party Transaction [Line Items]
Interest Expense, Related Party					375,000		375,000
Interest Expense [Member] | 0.875% debentures due 2021 [Member] | Total [Member]
Related Party Transaction [Line Items]
Interest Expense, Related Party					680,000		0
Research and Development Expense [Member] | Total [Member]
Related Party Transaction [Line Items]
Offsetting contributions received under R&D Agreement					(422,000)		260,000
Sales [Member] | Total [Member]
Related Party Transaction [Line Items]
EPC, O&M, and components revenue under joint projects					199,000		2,889,000
Costs and Estimated Earnings in Excess of Billings [Member] | Total [Member]
Related Party Transaction [Line Items]
Costs and estimated earnings in excess of billings					700,000
Accounts Receivable [Member] | Total [Member]
Related Party Transaction [Line Items]
Accounts receivable					1,600,000
Series of Individually Immaterial Business Acquisitions [Member]
Related Party Transaction [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill					17,875,000			$ 17,375,000

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Derivative Financial Instruments (Details) (USD $)	3 Months Ended
	Mar. 29, 2015	Mar. 30, 2014	Dec. 28, 2014
Derivatives, Fair Value [Line Items]
Derivative assets, net amounts	$ 12,196,000		$ 7,018,000
Derivative financial instruments	2,715,000		1,345,000
Derivative liabilities, net amounts	13,263,000		5,057,000
Derivative assets, gross amounts recognized	12,196,000		7,018,000
Derivative assets, financial instruments	2,715,000		1,345,000
Derivative assets, net amounts	9,481,000		5,673,000
Derivative liabilities, gross amounts recognized	13,263,000		5,057,000
Derivative liabilities, financial instruments	2,715,000		1,345,000
Derivative liabilities, net amounts	10,548,000		3,712,000
Accumulated Other Comprehensive Income [Roll Forward]
Gain (loss) in OCI at the beginning of the period	(1,443,000)	(805,000)
Unrealized loss recognized in OCI	(2,708,000)	(3,000)
Less: Loss (gain) reclassified from OCI to earnings	(1,480,000)	388,000
Net gain (loss) on derivatives	(4,188,000)	385,000
Gain (loss) in OCI at the end of the period	(5,631,000)	(420,000)
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net [Abstract]
Gain (loss) recognized in Other, net on derivatives (ineffective portion and amount excluded from effectiveness testing)	(3,255,000)	(480,000)
Gain recognized in Other, net	7,515,000	1,430,000
Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative assets, net amounts	2,541,000		2,244,000
Derivative liabilities, net amounts	2,056,000		3,712,000
Designated as Hedging Instrument [Member] | Foreign currency forward exchange contracts [Member]
Notional Disclosures [Abstract]
Derivative Asset, Notional Amount	51,300,000		12,200,000
Designated as Hedging Instrument [Member] | Foreign currency option contracts [Member]
Notional Disclosures [Abstract]
Derivative Asset, Notional Amount	13,300,000		26,600,000
Derivatives not designated as hedging instruments [Member]
Derivatives, Fair Value [Line Items]
Derivative assets, net amounts	9,655,000		4,774,000
Derivative liabilities, net amounts	11,207,000		1,345,000
Derivatives not designated as hedging instruments [Member] | Foreign currency forward exchange contracts [Member]
Notional Disclosures [Abstract]
Derivative Asset, Notional Amount	93,500,000		122,500,000
Derivatives not designated as hedging instruments [Member] | Foreign currency option contracts [Member]
Notional Disclosures [Abstract]
Derivative Asset, Notional Amount	0		0
Prepaid expenses and other current assets [Member] | Designated as Hedging Instrument [Member] | Foreign currency forward exchange contracts [Member]
Derivatives, Fair Value [Line Items]
Current derivative assets	125,000		4,000
Prepaid expenses and other current assets [Member] | Designated as Hedging Instrument [Member] | Foreign currency option contracts [Member]
Derivatives, Fair Value [Line Items]
Current derivative assets	2,416,000		2,240,000
Prepaid expenses and other current assets [Member] | Derivatives not designated as hedging instruments [Member] | Foreign currency forward exchange contracts [Member]
Derivatives, Fair Value [Line Items]
Current derivative assets	9,655,000		4,774,000
Accrued liabilities [Member] | Designated as Hedging Instrument [Member] | Foreign currency forward exchange contracts [Member]
Derivatives, Fair Value [Line Items]
Derivative financial instruments	908,000		0
Accrued liabilities [Member] | Derivatives not designated as hedging instruments [Member] | Foreign currency forward exchange contracts [Member]
Derivatives, Fair Value [Line Items]
Derivative financial instruments	1,807,000		1,345,000
Other long-term liabilities [Member] | Designated as Hedging Instrument [Member] | Interest Rate Contract [Member]
Derivatives, Fair Value [Line Items]
Current derivative liabilities	1,148,000		3,712,000
Notional Disclosures [Abstract]
Derivative Asset, Notional Amount	45,500,000		247,000,000
Other long-term liabilities [Member] | Derivatives not designated as hedging instruments [Member] | Interest Rate Contract [Member]
Derivatives, Fair Value [Line Items]
Current derivative liabilities	$ 9,400,000		$ 0

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Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 29, 2015		Dec. 28, 2014
Current assets:
Cash and cash equivalents	$ 601,573		$ 956,175
Restricted cash and cash equivalents, current portion	27,507		18,541
Accounts receivable, net	467,868	[1]	504,316
Costs and estimated earnings in excess of billings	46,117	[1]	187,087
Inventories	302,587		208,573
Advances to suppliers, current portion	90,270		98,129
Project assets - plants and land, current portion	179,650		101,181
Prepaid expenses and other current assets	345,825	[1]	328,845
Total current assets	2,061,397		2,402,847
Restricted cash and cash equivalents, net of current portion	34,383		24,520
Restricted long-term marketable securities	7,027		7,158
Property, plant and equipment, net	594,466	[2]	585,344
Solar power systems leased and to be leased, net	427,187	[3],[4]	390,913
Project assets - plants and land, net of current portion	29,394		15,475
Advances to suppliers, net of current portion	305,484		311,528
Long-term financing receivables, net	298,785		269,587
Goodwill and other intangible assets, net	38,008		37,981
Other long-term assets	307,010	[1]	300,229
Total assets	4,103,141		4,345,582
Current liabilities:
Accounts payable	432,568	[1]	419,919
Accrued liabilities	269,491		331,034
Billings in excess of costs and estimated earnings	89,061		83,440
Short-term debt	18,222		18,105
Convertible debt, current portion	0		245,325
Customer advances, current portion	27,367	[1]	31,788
Total current liabilities	836,709		1,129,611
Long-term debt	296,276		214,181
Convertible debt, net of current portion	693,591	[1]	692,955
Customer advances, net of current portion	143,218	[1]	148,896
Other long-term liabilities	542,973		555,344
Total liabilities	2,512,767		2,740,987
Commitments and contingencies (Note 8)
Redeemable noncontrolling interests in subsidiaries	29,306		28,566
Equity:
Preferred stock, $0.001 par value; 10,000,000 shares authorized; none issued and outstanding as of both March 29, 2015 and December 28, 2014	0		0
Common stock, $0.001 par value, 367,500,000 shares authorized; 141,592,715 shares issued, and 133,254,173 outstanding as of March 29, 2015; 367,500,000 shares authorized; 138,616,252 shares issued, and 131,466,777 outstanding as of December 28, 2014;	133		131
Additional paid-in capital	2,235,562		2,219,581
Accumulated deficit	(570,179)		(560,598)
Accumulated other comprehensive loss	(19,535)		(13,455)
Treasury stock, at cost; 8,338,542 shares of common stock as of March 29, 2015; 7,149,475 shares of common stock as of December 28, 2014	(150,189)		111,485
Total stockholders' equity	1,495,792		1,534,174
Noncontrolling interests in subsidiaries	65,276		41,855
Total equity	1,561,068		1,576,029
Total liabilities and equity	$ 4,103,141		$ 4,345,582

[1] The Company has related-party balances for transactions made with Total and its affiliates as well as unconsolidated entities in which the Company has a direct equity investment. These related-party balances are recorded within the "Accounts Receivable, net," "Costs and estimated earnings in excess of billings," "Prepaid expenses and other current assets," "Other long-term assets," "Accounts payable," "Customer advances, current portion," "Convertible debt, net of current portion," and "Customer advances, net of current portion" financial statement line items in the Consolidated Balance Sheets (see Note 2, Note 6, Note 9, Note 10, and Note 11).

[2] Property, plant and equipment, net by geography is based on the physical location of the assets.

[3] As of March 29, 2015 and December 28, 2014, the Company has pledged solar assets with an aggregate book value of $82.1 million and $140.1 million, respectively, to third-party investors as security for the Company's contractual obligations.

[4] Solar power systems leased and to be leased, net are physically located in the United States.

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Goodwill and Other Intangible Assets - Narrative (Details) (USD $)	3 Months Ended	12 Months Ended
	Mar. 29, 2015	Dec. 28, 2014	Dec. 29, 2013
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill, impairment loss		$ 0	$ 0
Amortization of intangible assets	$ (500,000)

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Consolidated Statements of Equity (USD $) In Thousands, unless otherwise specified	Total	Redeemable Noncontrolling Interest [Member]	Parent [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Retained Earnings [Member]	Noncontrolling Interest [Member]
Stockholders' equity, beginning of period at Dec. 28, 2014	$ 1,576,029	$ 28,566	$ 1,534,174	$ 131	$ 2,219,581	$ (111,485)	$ (13,455)	$ (560,598)	$ 41,855
Shares issued, beginning of period at Dec. 28, 2014				131,466
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(29,050)
Net income (loss)	(29,919)	869	(9,581)					(9,581)	(20,338)
Other comprehensive income (loss)	(6,080)		(6,080)				(6,080)
Issuance of common stock upon exercise of options (in shares)				1
Issuance of common stock upon exercise of options	3		3		3
Issuance of restricted stock to employees, net of cancellations (in shares)				2,976
Issuance of restricted stock to employees, net of cancellations				2	(2)
Issuance of common stock upon conversion of convertible debt	14,504
Stock-based compensation expense			14,504		14,504
Tax benefit from convertible debt interest deduction	904		904		904
Tax benefit from stock-based compensation	572		572		572
Contributions from noncontrolling interests and redeemable noncontrolling interests	45,459	431							45,459
Contributions from noncontrolling interests	45,890
Distributions to noncontrolling interests and redeemable noncontrolling interests	(1,700)	(560)							(1,700)
Purchases of treasury stock (in shares)				(1,189)
Purchases of treasury stock	(38,704)		(38,704)			(38,704)
Stockholders' equity, end of period at Mar. 29, 2015	$ 1,561,068	$ 29,306	$ 1,495,792	$ 133	$ 2,235,562	$ (150,189)	$ (19,535)	$ (570,179)	$ 65,276
Shares issued, end of period at Mar. 29, 2015				133,254

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Net Income (Loss) Per Share (Tables)

3 Months Ended

Mar. 29, 2015

Earnings Per Share [Abstract]

Schedule of income (loss) per share

The following table presents the calculation of basic and diluted net income (loss) per share:

	Three Months Ended
(In thousands, except per share amounts)	March 29, 2015			March 30, 2014
Basic net income per share:
Numerator
Net income (loss) attributable to stockholders	$	(9,581	)	$	65,044
Denominator
Basic weighted-average common shares	132,033			122,196
Basic net income (loss) per share	$	(0.07	)	$	0.53
Diluted net income per share:
Numerator
Net income (loss) attributable to stockholders	(9,581		)	65,044
Add: Interest expense incurred on the 0.75% debentures due 2018, net of tax	—			450
Add: Interest expense incurred on the 4.75% debentures due 2014, net of tax	—			2,185
Net income (loss) available to common stockholders	(9,581		)	67,679
Denominator
Basic weighted-average common shares	132,033			122,196
Effect of dilutive securities:
Stock options	—			108
Restricted stock units	—			6,202
Upfront Warrants (held by Total)	—			7,227
Warrants (under the CSO2015)	—			2,915
Warrants (under the CSO2014)	—			1,048
0.75% debentures due 2018	—			12,026
4.75% debentures due 2014	—			8,712
Dilutive weighted-average common shares	132,033			160,434
Dilutive net income (loss) per share	$	(0.07	)	$	0.42

Schedule of outstanding anti-dilutive potential common stock excluded from income per share

The following is a summary of outstanding anti-dilutive potential common stock that was excluded from income (loss) per diluted share in the following periods:

	Three Months Ended
(In thousands)	March 29, 2015 1	March 30, 2014
Stock options	190	159
Restricted stock units	3,616	464
Upfront Warrants (held by Total)	9,532	—
Warrants (under the CSO2015)	11,096	—
0.75% debentures due 2018	12,026	—
0.875% debentures due 2021	8,203	n/a

¹As a result of the net loss per share for the three months ended March 29, 2015, the inclusion of all potentially dilutive stock options, restricted stock units, and common shares under noted warrants and convertible debt would be anti-dilutive. Therefore, those stock options, restricted stock units and shares were excluded from the computation of the weighted-average shares for diluted net loss per share for such period.

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Stock-Based Compensation

3 Months Ended

Mar. 29, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock-Based Compensation

STOCK-BASED COMPENSATION

The following table summarizes the consolidated stock-based compensation expense by line item in the Consolidated Statements of Operations:

	Three Months Ended
(In thousands)	March 29, 2015		March 30, 2014
Cost of Residential revenue	$	922	$	994
Cost of Commercial revenue	388		540
Cost of Power Plant revenue	1,256		2,022
Research and development	2,273		1,797
Sales, general and administrative	8,707		9,514
Total stock-based compensation expense	$	13,546	$	14,867

The following table summarizes the consolidated stock-based compensation expense by type of awards:

	Three Months Ended
(In thousands)	March 29, 2015			March 30, 2014
Restricted stock units	14,504			14,876
Change in stock-based compensation capitalized in inventory	(958		)	(9		)
Total stock-based compensation expense	$	13,546		$	14,867

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Stock-Based Compensation (Tables)

3 Months Ended

Mar. 29, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Summary of stock-based compensation expense by line item on the Statement of Operations

The following table summarizes the consolidated stock-based compensation expense by line item in the Consolidated Statements of Operations:

	Three Months Ended
(In thousands)	March 29, 2015		March 30, 2014
Cost of Residential revenue	$	922	$	994
Cost of Commercial revenue	388		540
Cost of Power Plant revenue	1,256		2,022
Research and development	2,273		1,797
Sales, general and administrative	8,707		9,514
Total stock-based compensation expense	$	13,546	$	14,867

Summary of stock-based compensation expense by type of award

The following table summarizes the consolidated stock-based compensation expense by type of awards:

	Three Months Ended
(In thousands)	March 29, 2015			March 30, 2014
Restricted stock units	14,504			14,876
Change in stock-based compensation capitalized in inventory	(958		)	(9		)
Total stock-based compensation expense	$	13,546		$	14,867

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The Company and Summary of Significant Accounting Policies (Policies)

3 Months Ended

Mar. 29, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Principles of Consolidation

Principles of Consolidation

The consolidated financial statements are prepared in accordance with accounting principles generally accepted in the United States of America ("United States" or "U.S.") and include the accounts of the Company, all of its subsidiaries and special purpose entities, as appropriate under consolidation accounting guidelines. Intercompany transactions and balances have been eliminated in consolidation. The assets of the special purpose entities that the Company sets up related to project financing for customers are not designed to be available to service the general liabilities and obligations of the Company in certain circumstances.

Reclassifications

Reclassifications

Certain prior period balances, including prior period segment information, have been reclassified to conform to the current period presentation in the Company's consolidated financial statements and the accompanying notes. Such reclassifications had no effect on previously reported results of operations or accumulated deficit.

Fiscal Years

Fiscal Years

The Company has a 52-to-53-week fiscal year that ends on the Sunday closest to December 31. Accordingly, every fifth or sixth year will be a 53-week fiscal year. The current fiscal year, fiscal 2015, consists of 53 weeks, including a 14-week fourth fiscal quarter, while fiscal year 2014 consists of 52 weeks. The first quarter of fiscal 2015 ended on March 29, 2015, while the first quarter of fiscal 2014 ended on March 30, 2014. The first quarter of fiscal 2015 and fiscal 2014 were both 13-week quarters.

Management Estimates

Management Estimates

The preparation of the consolidated financial statements in conformity with U.S. generally accepted accounting principles ("U.S. GAAP") requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Significant estimates in these consolidated financial statements include percentage-of-completion for construction projects; allowances for doubtful accounts receivable and sales returns; inventory and project asset write-downs; stock-based compensation; estimates for future cash flows and economic useful lives of property, plant and equipment, goodwill, valuations for business combinations, other intangible assets and other long-term assets; the fair value and residual value of leased solar power systems; fair value of financial instruments; valuation of contingencies and certain accrued liabilities such as accrued warranty; and income taxes and tax valuation allowances. Actual results could materially differ from those estimates.

Recent Accounting Pronouncements

Recent Accounting Pronouncements

In April 2015, the Financial Accounting Standards Board ("FASB") issued an update to the standards to provide a practical expedient for the measurement date of defined benefit obligation and plan assets for reporting entities with fiscal year-ends that do not coincide with a month-end. The updated standard allows such entities to measure defined benefit plan assets and obligations using the month-end that is closest to the entity's fiscal year-end and apply that practical expedient consistently from year to year and to all plans, if an entity has more than one plan. The new practical expedient guidance is effective for the Company no later than the first quarter of fiscal 2016 and requires a prospective approach to adoption. Early adoption is permitted. The Company is evaluating the potential impact of this standard on its consolidated financial statements and disclosures.

In April 2015, the FASB issued an update to the standards for the presentation of debt issuance costs to reduce complexity in accounting standards and to align with IFRS. The updated standard requires debt issuance costs to be presented in the balance sheet as a direct deduction from the carrying value of the associated debt liability. U.S. generally accepted accounting principles previously required debt issuance costs to be reflected as an asset on the Company's balance sheet. The new debt issuance cost guidance is effective for the Company no later than the first quarter of fiscal 2016 and requires a retrospective approach to adoption. The Company has elected early adoption of the updated accounting standard, effective in the first quarter of fiscal 2015, resulting in the reclassification of $11.6M of debt issuance costs from "Other long-term assets" to "Long-term debt" and "Convertible debt, net of current portion" in the Consolidated Balance Sheets as of December 28, 2014.

In February 2015, the FASB issued a new standard that modifies existing consolidation guidance for reporting organizations that are required to evaluate whether they should consolidate certain legal entities. The new consolidation guidance is effective for the Company in the first quarter of fiscal 2016 and requires either a retrospective or a modified retrospective approach to adoption. Early adoption is permitted.  The Company is evaluating the available methods and the potential impact of this standard on its consolidated financial statements and disclosures.

In May 2014, the FASB issued a new revenue recognition standard based on the principle that revenue is recognized to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods and services. The new revenue recognition standard becomes effective for the Company in the first quarter of fiscal 2017 and is to be applied retrospectively using one of two prescribed methods. The Company is evaluating the application method and impact on its consolidated financial statements and disclosures.

Other than as described above, there has been no issued accounting guidance not yet adopted by the Company that it believes is material or potentially material to its consolidated financial statements.

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Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 29, 2015	Mar. 30, 2014
Statement of Cash Flows [Abstract]
Net income (loss)	$ (29,050)	$ 43,034
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	28,563	25,371
Stock-based compensation	13,546	14,867
Non-cash interest expense	4,680	5,170
Equity in earnings of unconsolidated investees	(2,191)	(1,783)
Excess tax benefit from stock-based compensation	(572)	0
Deferred income taxes and other tax liabilities	(5,078)	17,985
Other, net	855	(206)
Changes in operating assets and liabilities, net of effect of acquisition:
Accounts receivable	32,735	(93,574)
Costs and estimated earnings in excess of billings	140,970	14,009
Inventories	(108,072)	(4,043)
Project assets	(93,150)	22,491
Prepaid expenses and other assets	(25,090)	12,191
Long-term financing receivables, net	(29,198)	(32,333)
Advances to suppliers	13,903	7,263
Accounts payable and other accrued liabilities	(51,781)	(16,972)
Billings in excess of costs and estimated earnings	5,621	(117,009)
Customer advances	(10,099)	(2,727)
Net cash provided by (used in) operating activities	(113,408)	50,472
Cash flows from investing activities:
Increase in restricted cash and cash equivalents	(18,828)	2,293
Purchases of property, plant and equipment	(24,564)	8,800
Cash paid for solar power systems, leased and to be leased	(19,403)	14,989
Cash paid for investments in unconsolidated investees	0	5,013
Net cash used in investing activities	(63,321)	(31,095)
Cash flows from financing activities:
Cash paid for repurchase of convertible debt	(324,273)	1
Proceeds from settlement of 4.75% Bond Hedge	0	68,842
Payments to settle 4.75% Warrants	0	81,077
Proceeds from settlement of 4.50% Bond Hedge	74,628	0
Proceeds from issuance of non-recourse debt financing, net of issuance costs	0	39,108
Repayment of non-recourse debt financing	(398)	0
Proceeds from issuance of project loans, net of issuance costs	89,991	0
Assumption of project loan by customer	0	40,672
Repayment of bank loans, project loans and other debt	(7,946)	7,850
Repayment of residential lease financing	(10,546)	7,213
Proceeds from sale-leaseback financing	727	16,685
Repayment of sale-leaseback financing	(90)	779
Contributions from noncontrolling interests and redeemable noncontrolling interests	45,890	30,552
Distributions to noncontrolling interests and redeemable noncontrolling interests	(2,260)	1,117
Proceeds from exercise of stock options	3	68
Excess tax benefit from stock-based compensation	572	0
Purchases of stock for tax withholding obligations on vested restricted stock	(38,704)	43,506
Net cash used in financing activities	(172,406)	(26,960)
Effect of exchange rate changes on cash and cash equivalents	(5,467)	(187)
Net increase (decrease) in cash and cash equivalents	(354,602)	(7,770)
Cash and cash equivalents, beginning of period	956,175	762,511
Cash and cash equivalents, end of period	601,573	754,741
Non-cash transactions:
Assignment of residential lease receivables to a third-party financial institution	1,307	1,496
Costs of solar power systems, leased and to be leased, sourced from existing inventory	14,664	7,120
Costs of solar power systems, leased and to be leased, funded by liabilities	6,388	1,634
Costs of solar power systems under sale-leaseback financing arrangements, sourced from project assets	1,050	15,269
Property, plant and equipment acquisitions funded by liabilities	$ 20,185	$ 5,544

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Consolidated Balance Sheets (Parentheticals) (USD $)	Mar. 29, 2015	Dec. 28, 2014
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	367,500,000	367,500,000
Common stock, shares issued	141,592,715	138,616,252
Common Stock, Shares, Outstanding	133,254,173	131,466,777
Common stock held in treasury	8,338,542	7,149,475

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Equity Method Investments

3 Months Ended

Mar. 29, 2015

Equity Method Investments and Joint Ventures [Abstract]

Equity Method Investments

EQUITY METHOD INVESTMENTS

As of March 29, 2015 and December 28, 2014, the Company's carrying value of its equity method investments totaled $213.1 million and $210.9 million, respectively, and is classified as "Other long-term assets" in its Consolidated Balance Sheets. The Company's share of its earnings (loss) from equity method investments is reflected as "Equity in earnings of unconsolidated investees" in its Consolidated Statements of Operations.

Equity Investment and Joint Venture with AUOSP

In fiscal 2010, the Company, AUO and AU Optronics Corporation, the ultimate parent company of AUO ("AUO Taiwan"), formed the joint venture AUOSP. The Company and AUO each own 50% of the joint venture AUOSP. AUOSP owns a solar cell manufacturing facility in Malaysia and manufactures solar cells and sells them on a "cost-plus" basis to the Company and AUO.

In connection with the joint venture agreement, the Company and AUO also entered into licensing and joint development, supply, and other ancillary transaction agreements. Through the licensing agreement, the Company and AUO licensed to AUOSP, on a non-exclusive, royalty-free basis, certain background intellectual property related to solar cell manufacturing (in the case of the Company), and manufacturing processes (in the case of AUO). Under the seven-year supply agreement with AUOSP, renewable by the Company for one-year periods thereafter, the Company is committed to purchase 80% of AUOSP's total annual output allocated on a monthly basis to the Company. The Company and AUO have the right to reallocate supplies from time to time under a written agreement. In fiscal 2010, the Company and AUOSP entered into an agreement under which the Company will resell to AUOSP polysilicon purchased from a third-party supplier and AUOSP will provide prepayments to the Company related to such polysilicon, which prepayment will then be made by the Company to the third-party supplier.

The Company and AUO are not permitted to transfer any of AUOSP's shares held by them, except to each other. The Company and AUO agreed to each contribute additional amounts through fiscal 2015 amounting to $169.0 million, or such lesser amount as the parties may mutually agree. In addition, if AUOSP, the Company or AUO requests additional equity financing to AUOSP, then the Company and AUO will each be required to make additional cash contributions of up to $50.0 million in the aggregate.

The Company has concluded that it is not the primary beneficiary of AUOSP since, although the Company and AUO are both obligated to absorb losses or have the right to receive benefits, the Company alone does not have the power to direct the activities of AUOSP that most significantly impact its economic performance. In making this determination the Company considered the shared power arrangement, including equal board governance for significant decisions, elective appointment, and the fact that both parties contribute to the activities that most significantly impact the joint venture's economic performance. The Company accounts for its investment in AUOSP using the equity method as a result of the shared power arrangement. As of March 29, 2015, the Company's maximum exposure to loss as a result of its equity investment in AUOSP is limited to the carrying value of the investment. As of March 29, 2015 and December 28, 2014, the Company's investment in AUOSP had a carrying value of $194.2 million and $191.7 million, respectively.

Equity Investment in Huaxia CPV (Inner Mongolia) Power Co., Ltd. ("CCPV")

In December 2012, the Company entered into an agreement with Tianjin Zhonghuan Semiconductor Co. Ltd., Inner Mongolia Power Group Co. Ltd. and Hohhot Jinqiao City Development Company Co., Ltd. to form CCPV, a jointly owned entity to manufacture and deploy the Company's C7 Tracker concentrator technology in Inner Mongolia and other regions in China. CCPV is based in Hohhot, Inner Mongolia. The establishment of the entity was subject to approval of the Chinese government, which was received in the fourth quarter of fiscal 2013. In December 2013, the Company made a $16.4 million equity investment in CCPV, for a 25% equity ownership.

The Company has concluded that it is not the primary beneficiary of CCPV since, although the Company is obligated to absorb losses and has the right to receive benefits, the Company alone does not have the power to direct the activities of CCPV that most significantly impact its economic performance. The Company accounts for its investment in CCPV using the equity method since the Company is able to exercise significant influence over CCPV due to its board position.

Equity Investment in Diamond Energy Pty Ltd. ("Diamond Energy")

In October 2012, the Company made a $3.0 million equity investment in Diamond Energy, an alternative energy project developer and clean electricity retailer headquartered in Melbourne, Australia, in exchange for a 25% equity ownership.

The Company has concluded that it is not the primary beneficiary of Diamond Energy since, although the Company is obligated to absorb losses and has the right to receive benefits, the Company alone does not have the power to direct the activities of Diamond that most significantly impact its economic performance. The Company accounts for its investment in Diamond using the equity method since the Company is able to exercise significant influence over Diamond due to its board position.

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Document and Entity Information Document (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended
	Mar. 29, 2015	Apr. 24, 2015	Jun. 29, 2014
Entity Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 29, 2015
Entity Registrant Name	SUNPOWER CORP
Entity Central Index Key	0000867773
Current Fiscal Year End Date	--12-28
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float			$ 2,123
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1
Common Stock, Shares, Outstanding		133,269,858

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Debt and Credit Sources

3 Months Ended

Mar. 29, 2015

Debt Disclosure [Abstract]

Debt and Credit Sources

DEBT AND CREDIT SOURCES

The following table summarizes the Company's outstanding debt on its Consolidated Balance Sheets:

	March 29, 2015								December 28, 2014
(In thousands)	Face Value		Short-term		Long-term		Total		Face Value		Short-term		Long-term		Total
Convertible debt:
0.875% debentures due 2021	$	400,000	$	—	$	395,922	$	395,922	$	400,000	$	—	$	395,475	$	395,475
0.75% debentures due 2018	300,000		—		297,590		297,590		300,000		—		297,401		297,401
4.50% debentures due 2015	—				—		—		249,645		245,325		—		245,325
0.75% debentures due 2027	79		—		79		79		79		—		79		79
IFC mortgage loan	40,000		15,000		24,081		39,081		47,500		14,983		31,492		46,475
CEDA loan	30,000		—		27,479		27,479		30,000		—		27,379		27,379
Quinto Credit Facility	128,841		—		128,841		128,841		61,481		—		61,481		61,481
Other debt1	113,498		2,020		110,661		112,681		91,398		1,963		88,605		90,568
	$	1,012,418	$	17,020	$	984,653	$	1,001,673	$	1,180,103	$	262,271	$	901,912	$	1,164,183

¹  Other debt excludes payments related to capital leases, which are disclosed in Note 8.

As of March 29, 2015, the aggregate future contractual maturities of the Company's outstanding debt, at face value, was as follows:

(In thousands)	Fiscal 2015 (remaining nine months)		Fiscal 2016	Fiscal 2017	Fiscal 2018	Fiscal 2019	Thereafter	Total
Aggregate future maturities of outstanding debt	$	9,074	23,056	23,983	308,531	9,929	637,845	$	1,012,418

Convertible Debt

The following table summarizes the Company's outstanding convertible debt:

	March 29, 2015						December 28, 2014
(In thousands)	Carrying Value		Face Value		Fair Value1		Carrying Value		Face Value		Fair Value1
Convertible debt:
0.875% debentures due 2021	$	395,922	$	400,000	$	399,688	$	395,475	$	400,000	$	358,000
0.75% debentures due 2018	297,590		300,000		422,205		297,401		300,000		366,750
4.50% debentures due 2015	—		—		—		245,325		249,645		294,581
0.75% debentures due 2027	79		79		76		79		79		80
	$	693,591	$	700,079	$	821,969	$	938,280	$	949,724	$	1,019,411

¹  The fair value of the convertible debt was determined using Level 2 inputs based on quarterly market prices as reported by an independent pricing source.

The Company's outstanding convertible debentures are senior, unsecured obligations of the Company, ranking equally with all existing and future senior unsecured indebtedness of the Company.

0.875% Debentures Due 2021

In June 2014, the Company issued $400.0 million in principal amount of its 0.875% debentures due 2021. Interest is payable semi-annually, beginning on December 1, 2014. Holders may exercise their right to convert the debentures at any time into shares of the Company's common stock at an initial conversion price approximately equal to $48.76 per share, subject to adjustment in certain circumstances. If not earlier repurchased or converted, the 0.875% debentures due 2021 mature on June 1, 2021.

0.75% Debentures Due 2018

In May 2013, the Company issued $300.0 million in principal amount of its 0.75% debentures due 2018. Interest is payable semi-annually, beginning on December 1, 2013. Holders may exercise their right to convert the debentures at any time into shares of the Company's common stock at an initial conversion price approximately equal to $24.95 per share, subject to adjustment in certain circumstances. If not earlier repurchased or converted, the 0.75% debentures due 2018 mature on June 1, 2018.

4.50% Debentures Due 2015

In 2010, the Company issued $250.0 million in principal amount of its 4.50% senior cash convertible debentures ("4.50% debentures due 2015"). Interest was payable semi-annually, beginning on September 15, 2010. The 4.50% debentures due 2015 were convertible only into cash, and not into shares of the Company's common stock (or any other securities) at a conversion price of $22.53 per share. The 4.50% debentures due 2015 matured on March 15, 2015. During March 2015, the Company paid holders an aggregate of $324.3 million in cash in connection with the settlement of the outstanding 4.50% debentures due 2015. No 4.50% debentures due 2015 remained outstanding after the maturity date.

The embedded cash conversion option was a derivative instrument (derivative liability) that was required to be separated from the 4.50% debentures due 2015. The fair value of the derivative liability is classified within "Other long-term liabilities" on the Company's Consolidated Balance Sheets. Changes in the fair value of the derivative liability were reported in the Company's Consolidated Statements of Operations until the 4.50% debentures due 2015 matured in March 2015.

During the three months ended March 29, 2015, the Company recognized a non-cash loss of $52.0 million, recorded in "Other, net" in the Company's Consolidated Statements of Operations to recognize the change in fair value prior to expiration of the embedded conversion option. During the three months ended March 30, 2014, the Company recognized a non-cash loss of $19.1 million, recorded in "Other, net" in the Company's Consolidated Statements of Operations related to the change in fair value of the embedded cash conversion option.

Call Spread Overlay with Respect to 4.50% Debentures

Concurrently with the issuance of the 4.50% debentures due 2015, the Company entered into privately-negotiated convertible debenture hedge transactions (collectively, the "4.50% Bond Hedge") and warrant transactions (collectively, the "4.50% Warrants" and together with the 4.50% Bond Hedge, the “CSO2015”), with certain of the initial purchasers of the 4.50% debentures due 2015 or their affiliates. The CSO2015 transactions represented a call spread overlay with respect to the 4.50% debentures due 2015, whereby the cost of the 4.50% Bond Hedge purchased by the Company to cover the cash outlay upon conversion of the debentures is reduced by the sales prices of the 4.50% Warrants. The transactions effectively reduced the Company's potential payout over the principal amount on the 4.50% debentures due 2015 upon conversion of the 4.50% debentures due 2015.

Under the terms of the 4.50% Bond Hedge, the Company bought options to acquire, at an exercise price of $22.53 per share, subject to customary adjustments for anti-dilution and other events, cash in an amount equal to the market value of up to 11.1 million shares of the Company's common stock. Under the terms of the 4.50% Warrants, the Company sold warrants to acquire, at an exercise price of $24.00 per share, up to 11.1 million shares of the Company's common stock. Each 4.50% Bond Hedge was, and 4.50% Warrant transaction is, a separate transaction, entered into by the Company with each counterparty, and was not part of the terms of the 4.50% debentures due 2015.

The 4.50% Bond Hedge, which was indexed to the Company's common stock, was a derivative instrument that required mark-to-market accounting treatment due to the cash settlement features until the 4.50% Bond Hedge settled in March 2015. During March 2015, the Company exercised its rights under the 4.50% Bond Hedge, resulting in a payment to the Company of $74.6 million.

During the three months ended March 29, 2015, the Company recognized a non-cash gain of $52.0 million, recorded in "Other, net" in the Company's Consolidated Statements of Operations to recognize the change in fair value prior to settlement of the 4.50% Bond Hedge. During the three months ended March 30, 2014, the Company recognized a non-cash gain of $19.1 million, recorded in "Other, net" in the Company's Consolidated Statements of Operations related to the change in fair value of the 4.50% Bond Hedge.

4.75% Debentures Due 2014

In May 2009, the Company issued $230.0 million in principal amount of its 4.75% senior convertible debentures ("4.75% debentures due 2014"). Interest on the 4.75% debentures due 2014 was payable semi-annually, beginning October 15, 2009. Holders of the 4.75% debentures due 2014 were able to exercise their right to convert the debentures at any time into shares of the Company's common stock at a conversion price equal to $26.40 per share, subject to adjustment upon certain events. In April 2014, the 4.75% debentures due 2014 matured. During April 2014, the Company issued approximately 7.1 million shares of its common stock to holders that exercised conversion rights prior to their maturity and paid holders an aggregate of $41.7 million in cash in connection with the settlement of the remaining 4.75% debentures. Subsequent to the maturity date, no 4.75% debentures remained outstanding.

Call Spread Overlay with Respect to the 4.75% Debentures

Concurrently with the issuance of the 4.75% debentures due 2014, the Company entered into certain convertible debenture hedge transactions (the "4.75% Bond Hedge") and warrant transactions (the "4.75% Warrants") with affiliates of certain of the underwriters of the 4.75% debentures due 2014 (together, the "CSO2014"), whereby the cost of the 4.75% Bond Hedges purchased by the Company to cover the potential share outlays upon conversion of the debentures was reduced by the sales prices of the 4.75% Warrants. The components of the CSO2014 were not subject to mark-to-market accounting treatment since they could only be settled by issuance of the Company's common stock.

The 4.75% Bond Hedge allowed the Company to purchase up to 8.7 million shares of the Company's common stock, on a net share basis. Each 4.75% Bond Hedge and 4.75%Warrant was a separate transaction, entered into by the Company with each counterparty, and was not part of the terms of the 4.75% debentures due 2014. The exercise prices of the 4.75% Bond Hedge were $26.40 per share of the Company's common stock, subject to customary adjustment for anti-dilution and other events. In February 2014, the parties agreed to unwind the 4.75% Bond Hedge in full for a total cash settlement of $68.8 million, calculated by reference to the weighted price of the Company's common stock on the settlement day, received by the Company.

Under the 4.75% Warrants, the Company sold warrants to acquire up to 8.7 million shares of the Company's common stock at an exercise price of $26.40 per share of the Company's common stock, subject to adjustment for certain anti-dilution and other events. In February 2014, the parties agreed to unwind the 4.75% Warrants in full for a total cash settlement of $81.1 million, calculated by reference to the weighted price of the Company's common stock on the settlement date, paid by the Company.

Other Debt and Credit Sources

Mortgage Loan Agreement with IFC

In May 2010, the Company entered into a mortgage loan agreement with IFC. Under the loan agreement, the Company borrowed $75.0 million and is required to repay the amount borrowed starting two years after the date of borrowing, in 10 equal semi-annual installments. The Company is required to pay interest of LIBOR plus 3% per annum on outstanding borrowings; a front-end fee of 1% on the principal amount of borrowings at the time of borrowing; and a commitment fee of 0.5% per annum on funds available for borrowing and not borrowed. The Company may prepay all or a part of the outstanding principal, subject to a 1% prepayment premium. The Company has pledged certain assets as collateral supporting its repayment obligations (see Note 4). As of both March 29, 2015 and December 28, 2014, the Company had restricted cash and cash equivalents of $9.2 million related to the IFC debt service reserve, which is the amount, as determined by IFC, equal to the aggregate principal and interest due on the next succeeding interest payment date.

Loan Agreement with California Enterprise Development Authority ("CEDA")

In 2010, the Company borrowed the proceeds of the $30.0 million aggregate principal amount of CEDA's tax-exempt Recovery Zone Facility Revenue Bonds (SunPower Corporation - Headquarters Project) Series 2010 (the "Bonds") maturing April 1, 2031 under a loan agreement with CEDA. The Bonds mature on April 1, 2031, bear interest at a fixed rate of 8.50% through maturity, and include customary covenants and other restrictions on the Company.

Revolving Credit Facility with Credit Agricole

In July 2013, the Company entered into a revolving credit facility (the "revolving credit facility") with Credit Agricole, as administrative agent, and certain financial institutions, under which the Company may borrow up to $250.0 million. On August 26, 2014, the Company entered into an amendment to the revolving credit facility that, among other things, extends the maturity date of the facility from July 3, 2016 to August 26, 2019 (the "Maturity Date"). Amounts borrowed may be repaid and reborrowed until the Maturity Date. The Company may request increases to the available capacity of the revolving credit facility to an aggregate of $300.0 million, subject to the satisfaction of certain conditions. The revolving credit facility includes representations, covenants, and events of default customary for financing transactions of this type.

The revolving credit facility was entered into in conjunction with the delivery by Total S.A. of a guarantee of the Company's obligations under the related facility. On January 31, 2014, as contemplated by the facility, (i) the Company's obligations under the facility became secured by a pledge of certain accounts receivable and inventory; (ii) certain of the Company's subsidiaries entered into guarantees of the facility; and (iii) Total S.A.'s guarantee of the Company's obligations under the facility expired.

After January 31, 2014, the Company is required to pay interest on outstanding borrowings and fees of (a) with respect to any LIBOR rate loan, an amount ranging from 1.50% to 2.00% (depending on the Company's leverage ratio from time to time) plus the LIBOR rate divided by a percentage equal to one minus the stated maximum rate of all reserves required to be maintained against "Eurocurrency liabilities" as specified in Regulation D; (b) with respect to any alternate base rate loan, an amount ranging from 0.50% to 1.00% (depending on the Company's leverage ratio from time to time) plus the greater of (1) the prime rate, (2) the Federal Funds rate plus 0.50%, and (3) the one-month LIBOR rate plus 1%; and (c) a commitment fee ranging from 0.25% to 0.35% (depending on the Company's leverage ratio from time to time) per annum on funds available for borrowing and not borrowed.

As of both March 29, 2015 and December 28, 2014, the Company had no outstanding borrowings under the revolving credit facility.

Project Financing

In order to facilitate the construction and sale of certain solar projects, the Company obtains non-recourse project loans from third-party financial institutions that are contemplated as part of the structure of the sales transaction. The customer, which is not a related party to either the financial institution or the Company, in certain circumstances is permitted to assume the loans at the time that the project entity is sold to the customer. During fiscal 2013, the Company entered into a project loan with a consortium of lenders to facilitate the development of a 10 MW utility and power plant project under construction in Israel. During the first quarter of fiscal 2014, the Company sold the Israeli project. The related loan, amounting to ILS 141.8 million (approximately $40.7 million based on the exchange rate at the time of sale), and accrued and unpaid interest was assumed by the customer. In instances where the debt is issued as a form of pre-established customer financing, subsequent debt assumption is reflected as a financing outflow and operating inflow for purposes of the statement of cash flows to reflect the substance of the assumption as a facilitation of customer financing from a third-party.

On October 17, 2014, the Company, through a wholly-owned subsidiary (the "Quinto Project Company"), entered into an approximately $377.0 million credit facility with Santander Bank, N.A., Mizuho Bank, Ltd. and Credit Agricole (the "Quinto Credit Facility") in connection with the planned construction of the approximately 135 MW Quinto Solar Energy Project, located in Merced County, California (the "Quinto Project"). 

The Quinto Credit Facility includes approximately $318.0 million in construction loan commitments and approximately $59.0 million in letter of credit commitments. Principal and accrued interest on the construction loans are convertible into term loans following the end of the construction period.  The Quinto Credit Facility matures at the end of the seventh year following the term loan conversion, with semi-annual principal payments computed on a 19-year amortization schedule and a balloon payment at maturity. Generally, borrowings under the Quinto Credit Facility will bear interest of (a) with respect to any LIBOR rate loan, either 1.625% or 1.875% (until December 31, 2019 and on December 31, 2019 and thereafter, respectively) plus the LIBOR rate divided by a percentage equal to one minus the stated maximum rate of all reserves required to be maintained against "Eurocurrency Liabilities" as specified in Regulation D and (b) with respect to any alternate base rate loan, either 0.625% or 0.875% (until December 31, 2019 and on December 31, 2019 and thereafter, respectively) plus the greater of (1) the prime rate, (2) the Federal Funds rate plus 0.50%, and (3) the one-month LIBOR rate plus 1%. In addition, a commitment fee of 0.50% per annum is charged on funds available for borrowing and not borrowed. All outstanding indebtedness under the Quinto Credit Facility may be voluntarily prepaid in whole or in part without premium or penalty, other than customary breakage costs. We have committed to invest approximately $139 million of equity in the Quinto Project Company, with such investments to be made over time in connection with the completion of project development milestones. The Quinto Credit Facility is secured by the assets of, and equity in, the Quinto Project Company, but is otherwise non-recourse to us and our affiliates. The Quinto Credit Facility contains certain affirmative and negative covenants that limit or restrict, subject to certain exceptions, the ability of the Project Company to do certain things including the incurrence of indebtedness or liens, payment of dividends, merging or consolidating, transactions with affiliates or changing the nature of its business.

Proceeds from the Quinto Credit Facility will be used primarily to fund the construction of the Quinto Project under a turnkey EPC agreement between the Quinto Project Company and SunPower Corporation, Systems, our wholly-owned subsidiary.

As of March 29, 2015 we had outstanding borrowings of $128.8 million under the Quinto Credit Facility.

Other Debt

During fiscal 2015, the Company entered into a long-term non-recourse credit facility to finance a 52 MW utility and power plant in Colorado. The outstanding borrowings under this facility amounted to $22.6 million as of March 29, 2015.

During fiscal 2014, the Company entered into two long-term non-recourse loans to finance solar power systems and leases under its residential lease program. No amounts were drawn down under the loan agreements during the first quarter fiscal 2015. The loans have 17-year terms and as of March 29, 2015, the short-term and long-term balances of the loans were $1.5 million and $79.1 million, respectively.

During fiscal 2013, the Company entered into a long-term non-recourse loan agreement to finance a 5.4 MW utility and power plant operating in Arizona. The outstanding balance of the loan as of March 29, 2015 and December 28, 2014 was $8.5 million and $8.6 million, respectively.

Other debt is further composed of non-recourse project loans in EMEA which are scheduled to mature through 2028.

August 2011 Letter of Credit Facility with Deutsche Bank

In August 2011, the Company entered into a letter of credit facility agreement with Deutsche Bank, as administrative agent, and certain financial institutions. Payment of obligations under the letter of credit facility is guaranteed by Total S.A. pursuant to the Credit Support Agreement (see Note 2). The letter of credit facility provides for the issuance, upon request by the Company, of letters of credit by the issuing banks thereunder in order to support certain obligations of the Company, in an aggregate amount not to exceed $878.0 million for the period from January 1, 2014 through December 31, 2014. Aggregate letter of credit amounts may be increased upon the agreement of the parties but, otherwise, may not exceed (i) $936.0 million for the period from January 1, 2015 through December 31, 2015, and (ii) $1.0 billion for the period from January 1, 2016 through June 28, 2016.

As of March 29, 2015 and December 28, 2014, letters of credit issued and outstanding under the August 2011 letter of credit facility with Deutsche Bank totaled $559.2 million and $654.7 million, respectively.

September 2011 Letter of Credit Facility with Deutsche Bank Trust

In September 2011, the Company entered into a letter of credit facility with Deutsche Bank Trust which provides for the issuance, upon request by the Company, of letters of credit to support obligations of the Company in an aggregate amount not to exceed $200.0 million. Each letter of credit issued under the facility is fully cash-collateralized and the Company has entered into a security agreement with Deutsche Bank Trust, granting them a security interest in a cash collateral account established for this purpose.

As of March 29, 2015 and December 28, 2014, letters of credit issued and outstanding under the Deutsche Bank Trust facility amounted to $19.1 million and $1.6 million, respectively, which were fully collateralized with restricted cash on the Consolidated Balance Sheets.

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Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 29, 2015	Mar. 30, 2014
Revenue	$ 440,871	$ 692,422
Cost of revenue	350,053	529,433
Gross margin	90,818	162,989
Operating expenses:
Research and development	21,168	16,746
Sales, general and administrative	77,214	73,928
Restructuring charges	3,581	(461)
Total operating expenses	101,963	90,213
Operating income (loss)	(11,145)	72,776
Other income (expense), net:
Interest income	556	318
Interest expense	(15,681)	19,592
Other, net	(2,620)	1,369
Other expense, net	(17,745)	(17,905)
Income (loss) before income taxes and equity in earnings (loss) of unconsolidated investees	(28,890)	54,871
Provision for income taxes	(2,351)	13,620
Equity in earnings of unconsolidated investees	2,191	1,783
Net income (loss)	(29,050)	43,034
Net loss attributable to noncontrolling interests and redeemable noncontrolling interests	19,469	(22,010)
Net income (loss) attributable to stockholders	$ (9,581)	$ 65,044
Net income (loss) per share attributable to stockholders:
Basic (in dollars per share)	$ (0.07)	$ 0.53
Diluted (in dollars per share)	$ (0.07)	$ 0.42
Weighted-average shares:
Basic (in shares)	132,033	122,196
Diluted (in shares)	132,033	160,434

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Balance Sheet Components

3 Months Ended

Mar. 29, 2015

Balance Sheet Related Disclosures [Abstract]

Balance Sheet Components

BALANCE SHEET COMPONENTS

	As of
(In thousands)	March 29, 2015			December 28, 2014
Accounts receivable, net:
Accounts receivable, gross1,2	$	485,614		$	523,613
Less: allowance for doubtful accounts	(17,226		)	(18,152		)
Less: allowance for sales returns	(520		)	(1,145		)
	$	467,868		$	504,316

¹  Includes short-term financing receivables associated with solar power systems leased of $11.3 million and $9.1 million as of March 29, 2015 and December 28, 2014, respectively (see Note 5).

²  Includes short-term retainage of $240.3 million and $213.0 million as of March 29, 2015 and December 28, 2014, respectively. Retainage refers to the earned, but unbilled, portion of a construction and development project for which payment is deferred by the customer until certain contractual milestones are met.

	As of
(In thousands)	March 29, 2015		December 28, 2014
Inventories:
Raw materials	$	71,552	$	46,848
Work-in-process	85,800		67,903
Finished goods	145,235		93,822
	$	302,587	$	208,573

	As of
(In thousands)	March 29, 2015		December 28, 2014
Prepaid expenses and other current assets:
Deferred project costs	$	57,989	$	64,784
Bond hedge derivative	—		51,951
VAT receivables, current portion	6,628		7,554
Deferred costs for solar power systems to be leased	26,633		22,537
Derivative financial instruments	12,196		7,018
Prepaid inventory	50,395		—
Other receivables	92,924		79,927
Other prepaid expenses	54,923		47,448
Other current assets	44,137		47,626
	$	345,825	$	328,845

	As of
(In thousands)	March 29, 2015		December 28, 2014
Project assets - plants and land:
Project assets — plants	$	196,890	$	104,328
Project assets — land	12,154		12,328
	$	209,044	$	116,656
Project assets — plants and land, current portion	$	179,650	$	101,181
Project assets — plants and land, net of current portion	$	29,394	$	15,475

	As of
(In thousands)	March 29, 2015			December 28, 2014
Property, plant and equipment, net:
Manufacturing equipment3	$	556,730		$	554,124
Land and buildings	26,138			26,138
Leasehold improvements	237,713			236,867
Solar power systems4	126,350			124,848
Computer equipment	92,636			88,257
Furniture and fixtures	9,384			9,436
Construction-in-process	97,493			75,570
	1,146,444			1,115,240
Less: accumulated depreciation	(551,978		)	(529,896		)
	$	594,466		$	585,344

³  The Company's mortgage loan agreement with International Finance Corporation ("IFC") is collateralized by certain manufacturing equipment with a net book value of $107.7 million and $111.9 million as of March 29, 2015 and December 28, 2014, respectively.

⁴  Includes $95.4 million and $94.4 million of solar power systems associated with sale-leaseback transactions under the financing method as of March 29, 2015 and December 28, 2014, respectively, which are depreciated using the straight-line method to their estimated residual values over the lease terms of up to 20 years (see Note 5).

	As of
(In thousands)	March 29, 2015		December 28, 2014
Property, plant and equipment, net by geography5:
Philippines	$	345,803	$	335,643
United States	182,362		183,631
Mexico	40,393		40,251
Europe	24,620		24,748
Other	1,288		1,071
	$	594,466	$	585,344

⁵  Property, plant and equipment, net by geography is based on the physical location of the assets.

	As of
(In thousands)	March 29, 2015		December 28, 2014
Other long-term assets:
Equity method investments	$	213,089	$	210,898
Cost method investments	32,277		32,308
Other	61,644		57,023
	$	307,010	$	300,229

	As of
(In thousands)	March 29, 2015		December 28, 2014
Accrued liabilities:
Bond hedge derivatives	$	—	$	51,951
Employee compensation and employee benefits	36,355		47,667
Deferred revenue	27,075		33,412
Short-term residential lease financing	1,270		1,489
Interest payable	11,703		10,575
Short-term warranty reserves	14,467		13,278
Restructuring reserve	9,130		13,477
VAT payables	7,316		6,073
Derivative financial instruments	2,715		1,345
Inventory payable	50,395		—
Other	109,065		151,767
	$	269,491	$	331,034

	As of
(In thousands)	March 29, 2015		December 28, 2014
Other long-term liabilities:
Deferred revenue	$	178,602	$	176,804
Long-term warranty reserves	139,630		141,370
Long-term sale-leaseback financing	112,240		111,904
Long-term residential lease financing	19,032		27,122
Unrecognized tax benefits	23,069		31,764
Long-term pension liability	10,780		9,980
Derivative financial instruments	10,548		3,712
Other	49,072		52,688
	$	542,973	$	555,344

	As of
(In thousands)	March 29, 2015			December 28, 2014
Accumulated other comprehensive loss:
Cumulative translation adjustment	$	(10,715	)	$	(8,712	)
Net unrealized loss on derivatives	(5,631		)	(1,443		)
Net loss on long-term pension liability adjustment	(2,878		)	(2,878		)
Deferred taxes	(311		)	(422		)
	$	(19,535	)	$	(13,455	)

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Goodwill and Other Intangible Assets

3 Months Ended

Mar. 29, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangible Assets

GOODWILL AND OTHER INTANGIBLE ASSETS

Goodwill

As of both March 29, 2015 and December 28, 2014, the Company had goodwill with a carrying amount of $21.2 million, $20.8 million of which was allocated to the Residential Segment and $0.4 million of which was allocated to the Power Plant Segment. No goodwill impairment was recorded during the three months ended March 29, 2015 and March 30, 2014.

Other Intangible Assets

The following tables present details of the Company's acquired other intangible assets:

(In thousands)	Gross		Accumulated Amortization			Net
As of March 29, 2015
Patents and purchased technology	$	13,675	$	(1,088	)	$	12,587
Purchased in-process research and development	3,700		—			3,700
Other	$	500	$	—		500
	$	17,875	$	(1,088	)	$	16,787
As of December 28, 2014
Patents and purchased technology	$	13,675	$	(615	)	$	13,060
Purchased in-process research and development	$	3,700	$	—		$	3,700
	$	17,375	$	(615	)	$	16,760

Amortization expense for intangible assets totaled $0.5 million for the three months ended March 29, 2015. No amortization expense was incurred during the three months ended March 30, 2014.

As of March 29, 2015, the estimated future amortization expense related to intangible assets with finite useful lives is as follows:

(In thousands)	Amount
Fiscal Year
2015 (remaining nine months)	$	1,891
2016	2,114
2017	1,989
2018	1,989
2019	1,989
Thereafter	3,115
	$	13,087

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Segment Information

3 Months Ended

Mar. 29, 2015

Segment Reporting [Abstract]

Segment Information

SEGMENT AND GEOGRAPHICAL INFORMATION

In the first quarter of fiscal 2015, in connection with a realignment of its internal organizational structure, the Company changed its segment reporting from its Americas, EMEA and APAC Segments to three end-customer segments: (i) Residential Segment, (ii) Commercial Segment and (iii) Power Plant Segment (see Note 1). The Residential and Commercial Segments combined are referred to as Distributed Generation. Reclassifications of prior period segment information have been made to conform to the current period presentation. This change does not affect the Company's previously reported Consolidated Financial Statements.

The following tables present information by end-customer segment including revenue, gross margin, and depreciation and amortization, as well as revenue by geography, based on the destination of the shipments:

	Three Months Ended
(In thousands)	March 29, 2015		March 30, 2014
Revenue
Distributed Generation
Residential	155,324		164,718
Commercial	49,063		76,504
Power Plant	236,484		451,200
Total revenue	440,871		692,422
Cost of revenue
Distributed Generation
Residential	122,772		132,687
Commercial	46,880		64,463
Power Plant	180,401		332,283
Total cost of revenue	350,053		529,433
Gross margin
Distributed Generation
Residential	32,552		32,031
Commercial	2,183		12,041
Power Plant	56,083		118,917
Total gross margin	$	90,818	$	162,989

	Three Months Ended
Depreciation and amortization by segment (in thousands):	March 29, 2015		March 30, 2014
Distributed Generation
Residential	$	10,172	$	6,035
Commercial	$	3,407	$	2,803
Power Plant	$	14,984	$	16,533

The following tables present information by significant customers and categories:

		Three Months Ended
(As a percentage of total revenue)		March 29, 2015		March 30, 2014
Significant Customers:	Business Segment
MidAmerican Energy Holdings Company	Power Plant	33	%	42	%

	Three Months Ended
(As a percentage of total revenue)	March 29, 2015		March 30, 2014
Revenue by geography:
United States	67	%	68	%
Japan	16	%	13	%
Rest of World	17	%	19	%
	100	%	100	%

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Derivative Financial Instruments

3 Months Ended

Mar. 29, 2015

Foreign Currency Derivatives [Abstract]

Derivative Financial Instruments

DERIVATIVE FINANCIAL INSTRUMENTS

The following tables present information about the Company's hedge instruments measured at fair value on a recurring basis as of March 29, 2015 and December 28, 2014, all of which utilize Level 2 inputs under the fair value hierarchy:

(In thousands)	Balance Sheet Classification	March 29, 2015		December 28, 2014
Assets
Derivatives designated as hedging instruments:
Foreign currency option contracts	Prepaid expenses and other current assets	$	2,416	$	2,240
Foreign currency forward exchange contracts	Prepaid expenses and other current assets	125		4
		$	2,541	$	2,244
Derivatives not designated as hedging instruments:
Foreign currency forward exchange contracts	Prepaid expenses and other current assets	9,655		4,774
		$	9,655	$	4,774
Liabilities
Derivatives designated as hedging instruments:
Foreign currency forward exchange contracts	Accrued liabilities	908		—
Interest rate contracts	Other long-term liabilities	1,148		3,712
		$	2,056	$	3,712
Derivatives not designated as hedging instruments:
Foreign currency forward exchange contracts	Accrued liabilities	1,807		1,345
Interest rate contracts	Other long-term liabilities	9,400		—
		$	11,207	$	1,345

	March 29, 2015
							Gross Amounts Not Offset in the Consolidated Balance Sheets, but Have Rights to Offset
(In thousands)	Gross Amounts Recognized		Gross Amounts Offset		Net Amounts Presented		Financial Instruments		Cash Collateral		Net Amounts
Derivative assets	$	12,196	$	—	$	12,196	$	2,715	$	—	$	9,481
Derivative liabilities	$	13,263	$	—	$	13,263	$	2,715	$	—	$	10,548

	December 28, 2014
							Gross Amounts Not Offset in the Consolidated Balance Sheets, but Have Rights to Offset
(In thousands)	Gross Amounts Recognized		Gross Amounts Offset		Net Amounts Presented		Financial Instruments		Cash Collateral		Net Amounts
Derivative assets	$	7,018	$	—	$	7,018	$	1,345	$	—	$	5,673
Derivative liabilities	$	5,057	$	—	$	5,057	$	1,345	$	—	$	3,712

The following table summarizes the pre-tax amount of unrealized gain or loss recognized in "Accumulated other comprehensive income" ("OCI") in "Stockholders' equity" in the Consolidated Balance Sheets:

	Three Months Ended
(In thousands)	March 29, 2015			March 30, 2014
Derivatives designated as cash flow hedges:
Loss in OCI at the beginning of the period	$	(1,443	)	$	(805	)
Unrealized loss recognized in OCI	(2,708		)	(3		)
Less: Loss (gain) reclassified from OCI to earnings	(1,480		)	388
Net gain (loss) on derivatives	$	(4,188	)	$	385
Gain (loss) in OCI at the end of the period	$	(5,631	)	$	(420	)

The following table summarizes the amount of gain or loss recognized in "Other, net" in the Consolidated Statements of Operations in the three months ended March 29, 2015, and March 30, 2014:

	Three Months Ended
(In thousands)	March 29, 2015			March 30, 2014
Derivatives designated as cash flow hedges:
Gain (loss) recognized in "Other, net" on derivatives (ineffective portion and amount excluded from effectiveness testing)	$	(3,255	)	$	480
Derivatives not designated as hedging instruments:
Gain recognized in "Other, net"	$	7,515		$	1,430

Foreign Currency Exchange Risk

Designated Derivatives Hedging Cash Flow Exposure

The Company's cash flow exposure primarily relates to anticipated third-party foreign currency revenues and expenses and interest rate fluctuations. To protect financial performance, the Company enters into foreign currency forward and option contracts designated as cash flow hedges to hedge certain forecasted revenue transactions denominated in currencies other than their functional currencies.

As of March 29, 2015, the Company had designated outstanding cash flow hedge option contracts and forward contracts with an aggregate notional value of $13.3 million and $51.3 million, respectively. As of December 28, 2014, the Company had designated outstanding cash flow hedge option contracts and forward contracts with an aggregate notional value of $26.6 million and $12.2 million, respectively. The Company designates either gross external or intercompany revenue up to its net economic exposure. These derivatives have a maturity of 12 months or less and consist of foreign currency option and forward contracts. The effective portion of these cash flow hedges is reclassified into revenue when third-party revenue is recognized in the Consolidated Statements of Operations.

Non-Designated Derivatives Hedging Transaction Exposure

Derivatives not designated as hedging instruments consist of forward and option contracts used to hedge re-measurement of foreign currency denominated monetary assets and liabilities primarily for intercompany transactions, receivables from customers, and payables to third parties. Changes in exchange rates between the Company's subsidiaries' functional currencies and the currencies in which these assets and liabilities are denominated can create fluctuations in the Company's reported consolidated financial position, results of operations and cash flows. As of March 29, 2015, the Company held option contracts and forward contracts with an aggregate notional value of zero and $93.5 million, respectively, to hedge balance sheet exposure. The maturity dates of these contracts range from December 2014 to March 2015. The Company held option contracts and forward contracts with an aggregate notional value of zero and $122.5 million, respectively, as of December 28, 2014, to hedge balance sheet exposure.

Interest Rate Risk

The Company also enters into interest rate swap agreements to reduce the impact of changes in interest rates on its project specific non-recourse floating rate debt. As of March 29, 2015 and December 28, 2014, the Company had interest rate swap agreements designated as cash flow hedges with an aggregate notional value of $45.5 million and $247.0 million, respectively. These swap agreements allow the Company to effectively convert floating-rate payments into fixed rate payments periodically over the life of the agreements. These derivatives have a maturity of more than 12 months. The effective portion of these cash flow hedges is reclassified into interest expense when the hedged transactions are recognized in the Consolidated Statements of Operations. The Company analyzes its interest rate swaps quarterly to determine if the hedge transaction remains effective or ineffective. The Company may discontinue hedge accounting for interest rate swaps prospectively if certain criteria are no longer met, the interest rate swap is terminated or exercised, or if the Company elects to remove the cash flow hedge designation. If hedge accounting is discontinued, and the forecasted hedged transaction is considered possible to occur, the previously recognized gain or loss on the interest rate swaps will remain in accumulated other comprehensive loss and will be reclassified into earnings during the same period the forecasted hedged transaction affects earnings or is otherwise deemed improbable to occur.

Credit Risk

The Company's option and forward contracts do not contain any credit-risk-related contingent features. The Company is exposed to credit losses in the event of nonperformance by the counterparties to these option and forward contracts. The Company enters into derivative contracts with high-quality financial institutions and limits the amount of credit exposure to any single counterparty. In addition, the Company continuously evaluates the credit standing of its counterparties.

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Restructuring

3 Months Ended

Mar. 29, 2015

Restructuring and Related Activities [Abstract]

Restructuring

RESTRUCTURING

November 2014 Restructuring Plan

On November 14, 2014, the Company announced a reorganization plan aimed towards realigning resources consistently with SunPower's global strategy and improving its overall operating efficiency and cost structure. In connection with this plan, which is expected to be completed by the end of fiscal 2015, SunPower expects approximately 95 to 115 employees to be affected, primarily in Europe, representing approximately 1% to 2% of SunPower's global workforce. SunPower expects to incur restructuring charges totaling approximately $17 million to $25 million, principally composed of severance benefits, lease and related termination costs, and other associated costs. SunPower expects more than 90% of total charges to be cash. The actual timing and costs of the plan may differ from SunPower’s current expectations and estimates due to a number of factors, including uncertainties related to required consultations with employee representatives as well as other local labor law requirements and mandatory processes in the relevant jurisdictions.

Legacy Restructuring Plans

During fiscal 2012 and 2011, the Company implemented approved restructuring plans, related to all segments, to align with changes in the global solar market which included the consolidation of the Company's Philippine manufacturing operations as well as actions to accelerate operating cost reduction and improve overall operating efficiency. These restructuring activities were substantially complete as of March 29, 2015, however, the Company expects to continue to incur costs as it finalizes previous estimates and actions in connection with these plans, primarily due to other costs, such as legal services.

The following table summarizes the restructuring charges recognized in the Company's Consolidated Statements of Operations:

	Three Months Ended						Cumulative To Date
(In thousands)	March 29, 2015			March 30, 2014
November 2014 Plan:
Non-cash impairment charges	$	—		$	—		$	719
Severance and benefits	2,063			—			14,243
Other costs1	1,724			—			1,937
	3,787			—			16,899
Legacy Restructuring Plans:
Non-cash impairment charges	—			—			60,596
Severance and benefits	(132		)	(531		)	46,577
Lease and related termination costs	—			(402		)	5,774
Other costs1	(74		)	472			10,786
	(206		)	(461		)	123,733
Total restructuring charges	$	3,581		$	(461	)	$	140,632

The following table summarizes the restructuring reserve activity during the fiscal year ended March 29, 2015:

	Three Months Ended
(In thousands)	December 28, 2014		Charges (Benefits)			Payments			March 29, 2015
November 2014 Plan:
Severance and benefits	$	12,075	$	2,063		$	(6,745	)	$	7,393
Other costs1	145		1,724			(852		)	1,017
	12,220		3,787			(7,597		)	8,410
Legacy Restructuring Plans:
Severance and benefits	421		(132		)	(144		)	145
Lease and related termination costs	390		—			(80		)	310
Other costs1	446		(74		)	(107		)	265
	1,257		(206		)	(331		)	720
Total restructuring liability	$	13,477	$	3,581		$	(7,928	)	$	9,130

¹  Other costs primarily represent associated legal services.

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Leasing

3 Months Ended

Mar. 29, 2015

Leases [Abstract]

Leasing

LEASING

Residential Lease Program

The Company offers a solar lease program, in partnership with third-party investors, which provides U.S. residential customers SunPower systems under 20-year lease agreements that include system maintenance and warranty coverage. Leases are classified as either operating or sales-type leases in accordance with the relevant accounting guidelines.

Operating Leases

The following table summarizes "Solar power systems leased and to be leased, net" under operating leases on the Company's Consolidated Balance Sheets as of March 29, 2015 and December 28, 2014:

	As of
(In thousands)	March 29, 2015			December 28, 2014
Solar power systems leased and to be leased, net1,2:
Solar power systems leased	$	429,687		$	396,704
Solar power systems to be leased	28,683			21,202
	458,370			417,906
Less: accumulated depreciation	(31,183		)	(26,993		)
	$	427,187		$	390,913

¹  Solar power systems leased and to be leased, net are physically located in the United States.

²  As of March 29, 2015 and December 28, 2014, the Company has pledged solar assets with an aggregate book value of $82.1 million and $140.1 million, respectively, to third-party investors as security for the Company's contractual obligations.

The following table presents the Company's minimum future rental receipts on operating leases placed in service as of March 29, 2015:

(In thousands)	Fiscal 2015 (remaining nine months)		Fiscal 2016	Fiscal 2017	Fiscal 2018	Fiscal 2019	Thereafter	Total
Minimum future rentals on operating leases placed in service1	$	12,888	15,165	15,206	15,255	15,303	218,379	$	292,196

¹  Minimum future rentals on operating leases placed in service does not include contingent rentals that may be received from customers under agreements that include performance-based incentives.

Sales-Type Leases

As of March 29, 2015 and December 28, 2014, respectively, the Company's net investment in sales-type leases presented in "Accounts receivable, net" and "Long-term financing receivables, net" on the Company's Consolidated Balance Sheets was as follows:

	As of
(In thousands)	March 29, 2015			December 28, 2014
Financing receivables:
Minimum lease payments receivable1	$	351,029		$	319,244
Unguaranteed residual value	37,775			34,343
Unearned income	(78,769		)	(74,859		)
Net financing receivables	$	310,035		$	278,728
Current	$	11,250		$	9,141
Long-term	$	298,785		$	269,587

¹  Net of allowance for doubtful accounts.

As of March 29, 2015, future maturities of net financing receivables for sales-type leases are as follows:

(In thousands)	Fiscal 2015 (remaining nine months)		Fiscal 2016	Fiscal 2017	Fiscal 2018	Fiscal 2019	Thereafter	Total
Scheduled maturities of minimum lease payments receivable1	$	12,938	17,172	17,369	17,574	17,784	268,192	$	351,029

¹  Minimum future rentals on sales-type leases placed in service does not include contingent rentals that may be received from customers under agreements that include performance-based incentives.

Third-Party Financing Arrangements

The Company has entered into multiple facilities under which solar power systems are financed by third-party investors. Under the terms of certain programs the investors make an upfront payment to the Company, which the Company recognizes as a non-recourse liability that will be reduced over the specified term of the program as customer receivables and government incentives are received by the third-party investors. As the non-recourse liability is reduced over time, the Company makes a corresponding reduction in customer and government incentive receivables on its balance sheet. The Company accounts for both operating and sales-type leases with its residential lease customers under this approach in the consolidated financial statements. As of March 29, 2015, and December 28, 2014, the remaining liability to the third-party investors presented in "Accrued liabilities" and "Other long-term liabilities" on the Company's Consolidated Balance Sheets, was $20.3 million and $28.6 million, respectively (see Note 4).

The Company has entered into multiple facilities with third-party investors under which the parties invest in entities that hold SunPower solar power systems and leases with residential customers. The Company holds controlling interests in these less-than-wholly-owned entities and has therefore fully consolidated these entities. The Company accounts for the portion of net assets in the consolidated entities attributable to the investors as "Redeemable noncontrolling interests" and "Noncontrolling interests" in its consolidated financial statements. Noncontrolling interests in subsidiaries that are redeemable at the option of the noncontrolling interest holder are classified as "Redeemable noncontrolling interests in subsidiaries," between liabilities and equity on the Company's Consolidated Balance Sheets. During the three months ended March 29, 2015 and March 30, 2014 the Company received $45.9 million and $30.6 million, respectively, in contributions from investors under the related facilities and attributed $19.6 million and $22.0 million, respectively, in losses to the third-party investors primarily as a result of allocating certain assets, including tax credits, to the investors.

Sale-Leaseback Arrangements

The Company enters into sale-leaseback arrangements under which solar power systems are sold to third parties and subsequently leased back by the Company over minimum lease terms of up to 20 years. Separately, the Company enters into PPAs with end customers, who host the leased solar power systems and buy the electricity directly from the Company under PPAs with durations of up to 25 years. At the end of the lease term, the Company has the option to purchase the systems at fair value or may be required to remove the systems and return them to the third parties.

The Company has classified its sale-leaseback arrangements of solar power systems not involving integral equipment as operating leases. The deferred profit on the sale of these systems is recognized over the term of the lease. As of March 29, 2015, future minimum lease obligations associated with these systems was $93.1 million, which will be recognized over the minimum lease terms. Future minimum payments to be received from customers under PPAs associated with the solar power systems under sale-leaseback arrangements classified as operating leases will be recognized over the lease terms of up to 20 years and are contingent upon the amounts of energy produced by the solar power systems.

The Company enters into sale-leaseback arrangements under which the systems under the sale-leaseback arrangements have been determined to be integral equipment as defined under the accounting guidance for such transactions. The Company was further determined to have continuing involvement with the solar power systems throughout the lease due to purchase option rights. As a result of such continuing involvement, the Company accounts for each transaction as a financing. Under the financing method, the proceeds received from the sale of the solar power systems are recorded by the Company as financing liabilities and presented within "Other long-term liabilities" in the Company's Consolidated Balance Sheets (see Note 4). The financing liabilities are subsequently reduced by the Company's payments to lease back the solar power systems, less interest expense calculated based on the Company's incremental borrowing rate adjusted to the rate required to prevent negative amortization. The solar power systems under the sale-leaseback arrangements remain on the Company's balance sheet and are classified within "Property, plant and equipment, net" (see Note 4). As of March 29, 2015, future minimum lease obligations for the sale-leaseback arrangements accounted for under the financing method were $99.4 million, which will be recognized over the lease terms of up to 20 years.

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Fair Value Measurements

3 Months Ended

Mar. 29, 2015

Fair Value Disclosures [Abstract]

Fair Value Measurements

FAIR VALUE MEASUREMENTS

Fair value is estimated by applying the following hierarchy, which prioritizes the inputs used to measure fair value into three levels and bases the categorization within the hierarchy upon the lowest level of input that is available and significant to the fair value measurement (observable inputs are the preferred basis of valuation):

• Level 1 — Quoted prices in active markets for identical assets or liabilities.

• Level 2 — Measurements are inputs that are observable for assets or liabilities, either directly or indirectly, other than quoted prices included within Level 1.

• Level 3 — Prices or valuations that require management inputs that are both significant to the fair value measurement and unobservable.

Assets and Liabilities Measured at Fair Value on a Recurring Basis

The Company measures certain assets and liabilities at fair value on a recurring basis. There were no transfers between fair value measurement levels during any presented period. The Company did not have any assets or liabilities measured at fair value on a recurring basis requiring Level 3 inputs as of March 29, 2015 or December 28, 2014.

The following table summarizes the Company's assets and liabilities measured and recorded at fair value on a recurring basis as of March 29, 2015 and December 28, 2014, respectively:

	March 29, 2015						December 28, 2014
(In thousands)	Total		Level 1		Level 2		Total		Level 1		Level 2
Assets
Cash and cash equivalents1:
Money market funds	$	170,000	$	170,000	$	—	$	375,000	$	375,000	$	—
Prepaid expenses and other current assets:
Debt derivatives (Note 10)	—		—		—		51,951		—		51,951
Derivative financial instruments (Note 11)	12,196		—		12,196		7,018		—		7,018
Total assets	$	182,196	$	170,000	$	12,196	$	433,969	$	375,000	$	58,969
Liabilities
Accrued liabilities:
Debt derivatives (Note 10)	$	—	$	—	$	—	$	51,951	$	—	$	51,951
Derivative financial instruments (Note 11)	2,715		—		2,715		1,345		—		1,345
Other long-term liabilities:
Derivative financial instruments (Note 11)	10,548		—		10,548		3,712		—		3,712
Total liabilities	$	13,263	$	—	$	13,263	$	57,008	$	—	$	57,008

¹The Company's cash equivalents consist of money market fund instruments and commercial paper that are classified as available-for-sale and are highly liquid investments with original maturities of 90 days or less. The Company's money market fund instruments are categorized within Level 1 of the fair value hierarchy because they are valued using quoted market prices for identical instruments in active markets.

Other financial instruments, including the Company's accounts receivable, accounts payable and accrued liabilities, are carried at cost, which generally approximates fair value due to the short-term nature of these instruments.

Debt Derivatives

The 4.50% Bond Hedge (as defined in Note 10) and the embedded cash conversion option within the 4.50% debentures due 2015 (as defined in Note 10), which both matured in the first quarter of 2015, were classified as derivative instruments that required mark-to-market treatment with changes in fair value reported in the Company's Consolidated Statements of Operations. The fair values of these derivative instruments as of December 28, 2014 were determined utilizing the following Level 1 and Level 2 inputs:

	As of1
	December 28, 2014
Stock price	$	26.32
Exercise price	$	22.53
Interest rate	0.19		%
Stock volatility	61.7		%
Credit risk adjustment	0.65		%
Maturity date	February 18, 2015

¹  The valuation model utilizes these inputs to value the right but not the obligation to purchase one share of the Company's common stock at $22.53. The Company utilized a Black-Scholes valuation model to value the 4.50% Bond Hedge and embedded cash conversion option. The underlying input assumptions were determined as follows:

(i) Stock price. The closing price of the Company's common stock on the last trading day of the quarter.

(ii) Exercise price. The exercise price of the 4.50% Bond Hedge and the embedded cash conversion option.

(iii) Interest rate. The Treasury Strip rate associated with the life of the 4.50% Bond Hedge and the embedded cash conversion option.

(iv) Stock volatility. The volatility of the Company's common stock over the life of the 4.50% Bond Hedge and the embedded cash conversion option.

(v) Credit risk adjustment. Represents the weighted average of the credit default swap rate of the counterparties.

Assets and Liabilities Measured at Fair Value on a Non-Recurring Basis

The Company measures certain investments and non-financial assets (including project assets, property, plant and equipment, and other intangible assets) at fair value on a non-recurring basis in periods after initial measurement in circumstances when the fair value of such asset is impaired below its recorded cost.

Held-to-Maturity Debt Securities

The Company's debt securities, classified as held-to-maturity, are Philippine government bonds that the Company maintains as collateral for present and future business transactions within the Philippines. These bonds have maturity dates of up to five years and are classified as "Restricted long-term marketable securities" on the Company's Consolidated Balance Sheets. As of March 29, 2015 and December 28, 2014, these bonds had a carrying value of $7.0 million and $7.2 million, respectively. The Company records such held-to-maturity investments at amortized cost based on its ability and intent to hold the securities until maturity. The Company monitors for changes in circumstances and events that would affect its ability and intent to hold such securities until the recorded amortized costs are recovered. No other-than-temporary impairment loss was incurred during any presented period. The held-to-maturity debt securities were categorized in Level 2 of the fair value hierarchy.

Equity and Cost Method Investments

The Company holds equity investments in non-consolidated entities that are accounted for under both the equity and cost method. The Company monitors these investments, which are included in "Other long-term assets" in its Consolidated Balance Sheets, for impairment and records reductions in the carrying values when necessary. Circumstances that indicate an other-than-temporary decline include Level 2 and Level 3 measurements such as the valuation ascribed to the issuing company in subsequent financing rounds, decreases in quoted market prices, and declines in operations of the issuer.

As of March 29, 2015 and December 28, 2014, the Company had $213.1 million and $210.9 million, respectively, in investments accounted for under the equity method (see Note 9). As of March 29, 2015 and December 28, 2014, the Company had $32.3 million and $32.3 million, respectively, in investments accounted for under the cost method.

Related-Party Transactions with Investees:

	As of
(In thousands)	March 29, 2015		December 28, 2014
Accounts receivable	$	20,235	$	22,425
Accounts payable	$	26,252	$	50,039
Customer advances	$	1,212	$	4,210
Other long-term assets:
Long-term note receivable	$	1,553	$	1,623

	Three Months Ended
(In thousands)	March 29, 2015		March 30, 2014
Payments made to investees for products/services	$	119,177	$	105,010
Revenue from sales to investees of products/services	$	5,603	$	—

Cost Method Investment in Tendril Networks, Inc. ("Tendril")

In November 2014, the Company purchased $20.0 million of preferred stock for a minority stake in Tendril, accounted for under the cost method as the preferred stock was deemed not to be in-substance common stock. In connection with the investment, the Company entered into an agreement to purchase, at the Company's option, up to 14 million shares of Tendril common stock through November 23, 2024, subject to the parties' achievement of certain financial and operational milestones and other conditions.

In connection with the initial investment in Tendril, the Company also entered into commercial agreements under a Master Services Agreement ("MSA") and Statements of Work ("SOWs"). Under these commercial agreements, Tendril will use up to $13.0 million of SunPower's initial investment to develop, jointly with SunPower, solar software solution products for the Company.

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Commitments and Contingencies

3 Months Ended

Mar. 29, 2015

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

COMMITMENTS AND CONTINGENCIES

Facility and Equipment Lease Commitments

The Company leases certain facilities under non-cancellable operating leases from unaffiliated third parties. As of March 29, 2015, future minimum lease payments for facilities under operating leases were $52.8 million, to be paid over the remaining contractual terms of up to 10 years. The Company also leases certain buildings, machinery and equipment under non-cancellable capital leases. As of March 29, 2015, future minimum lease payments for assets under capital leases were $6.4 million, to be paid over the remaining contractual terms of up to 10 years.

Purchase Commitments

The Company purchases raw materials for inventory and manufacturing equipment from a variety of vendors. During the normal course of business, in order to manage manufacturing lead times and help assure adequate supply, the Company enters into agreements with contract manufacturers and suppliers that either allow them to procure goods and services based on specifications defined by the Company, or that establish parameters defining the Company's requirements. In certain instances, these agreements allow the Company the option to cancel, reschedule or adjust the Company's requirements based on its business needs before firm orders are placed. Consequently, only a portion of the Company's disclosed purchase commitments arising from these agreements are firm, non-cancellable and unconditional commitments.

The Company also has agreements with several suppliers, including some of its non-consolidated investees, for the procurement of polysilicon, ingots, wafers, and Solar Renewable Energy Credits, among others, which specify future quantities and pricing of products to be supplied by the vendors for periods up to 10 years and provide for certain consequences, such as forfeiture of advanced deposits and liquidated damages relating to previous purchases, in the event that the Company terminates the arrangements.

Future purchase obligations under non-cancellable purchase orders and long-term supply agreements as of March 29, 2015 are as follows:

(In thousands)	Fiscal 2015 (remaining nine months)		Fiscal 2016	Fiscal 2017	Fiscal 2018	Fiscal 2019	Thereafter	Total1,2,3
Future purchase obligations	$	646,615	317,916	343,806	182,181	175,695	164,847	$	1,831,060

¹  Total future purchase obligations as of March 29, 2015 include $81.8 million to related parties.

²  Total future purchase obligations was composed of $203.2 million related to non-cancellable purchase orders and $1.6 billion related to long-term supply agreements.

³The Company did not fulfill all of the purchase commitments it was otherwise obligated to take by December 31, 2014, as specified in several related contracts with a supplier. As of March 29, 2015, the Company has recorded an offsetting asset, recorded within "Prepaid expenses and other current assets," and liability, recorded within "Accrued liabilities," totaling $50.4 million. This amount represents the unfulfilled amount as of that date as the Company expects to satisfy the obligation via purchases of inventory in fiscal 2015, within the cure period specified in the contracts.

The Company expects that all obligations related to non-cancellable purchase orders for manufacturing equipment will be recovered through future cash flows of the solar cell manufacturing lines and solar panel assembly lines when such long-lived assets are placed in service. Factors considered important that could result in an impairment review include significant under-performance relative to expected historical or projected future operating results, significant changes in the manner of use of acquired assets, and significant negative industry or economic trends. Obligations related to non-cancellable purchase orders for inventories match current and forecasted sales orders that will consume these ordered materials and actual consumption of these ordered materials are compared to expected demand regularly. The Company anticipates total obligations related to long-term supply agreements for inventories will be recovered because quantities are less than management's expected demand for its solar power products. The terms of the long-term supply agreements are reviewed by management and the Company assesses the need for any accruals for estimated losses on adverse purchase commitments, such as lower of cost or market value adjustments that will not be recovered by future sales prices, forfeiture of advanced deposits and liquidated damages, as necessary.

Advances to Suppliers

As noted above, the Company has entered into agreements with various vendors, some of which are structured as "take or pay" contracts, that specify future quantities and pricing of products to be supplied. Certain agreements also provide for penalties or forfeiture of advanced deposits in the event the Company terminates the arrangements. Under certain agreements, the Company is required to make prepayments to the vendors over the terms of the arrangements. The Company did not make any additional advance payments under its long-term supply agreements during the first quarter of fiscal 2015. As of March 29, 2015 and December 28, 2014, advances to suppliers totaled $395.8 million and $409.7 million, respectively, of which $90.3 million and $98.1 million, respectively, is classified as short-term in the Company's Consolidated Balance Sheets. Two suppliers accounted for 83% and 17% of total advances to suppliers as of March 29, 2015, and 82% and 17% as of December 28, 2014.

Advances from Customers

The Company has entered into other agreements with customers who have made advance payments for solar power products and systems. These advances will be applied as shipments of product occur or upon completion of certain project milestones. The estimated utilization of advances from customers as of March 29, 2015 is as follows:

(In thousands)	Fiscal 2015 (remaining nine months)		Fiscal 2016	Fiscal 2017	Fiscal 2018	Fiscal 2019	Thereafter	Total
Estimated utilization of advances from customers	$	19,382	25,020	27,039	27,039	28,842	43,263	$	170,585

In fiscal 2010, the Company and its joint venture, AUO SunPower Sdn. Bhd. ("AUOSP"), entered into an agreement under which the Company resells to AUOSP polysilicon purchased from a third-party supplier. Advance payments provided by AUOSP related to such polysilicon are then made by the Company to the third-party supplier. These advance payments are applied as a credit against AUOSP’s polysilicon purchases from the Company. Such polysilicon is used by AUOSP to manufacture solar cells that are sold to the Company on a "cost-plus" basis. As of March 29, 2015 and December 28, 2014, outstanding advance payments received from AUOSP totaled $162.7 million and $167.2 million, respectively, of which $19.4 million and $18.3 million, respectively, was classified as short-term in the Company's Consolidated Balance Sheets, based on projected product shipment dates.

Product Warranties

The following table summarizes accrued warranty activity for the three months ended March 29, 2015 and March 30, 2014, respectively:

	Three Months Ended
(In thousands)	March 29, 2015			March 30, 2014
Balance at the beginning of the period	$	154,648		$	149,372
Accruals for warranties issued during the period	8,161			5,190
Settlements and adjustments during the period	(8,711		)	(3,147		)
Balance at the end of the period	$	154,098		$	151,415

Contingent Obligations

Project agreements entered into with the Company's Commercial and Power Plant customers often require the Company to undertake obligations including: (i) system output performance warranties; (ii) system maintenance; (iii) penalty payments or customer termination rights if the system the Company is constructing is not commissioned within specified timeframes or other milestones are not achieved; and (iv) system put-rights whereby the Company could be required to buy back a customer's system at fair value on specified future dates if certain minimum performance thresholds are not met for periods of up to two years. Historically, the Company's systems have performed significantly above the performance warranty thresholds, and there have been no cases in which the Company has had to buy back a system.

Future Financing Commitments

The Company is required to provide certain funding under the joint venture agreement with AU Optronics Singapore Pte. Ltd. ("AUO") and another unconsolidated investee, subject to certain conditions (see Note 9). As of March 29, 2015, the Company has future financing obligations through fiscal 2015 totaling $171.9 million.

Liabilities Associated with Uncertain Tax Positions

Total liabilities associated with uncertain tax positions were $31.1 million and $31.8 million as of March 29, 2015 and December 28, 2014, respectively. As of March 29, 2015, $8.0 million of uncertain tax positions are included in "Accrued liabilities" in the Company's Consolidated Balance Sheets as they are expected to be paid within the next twelve months, and $23.1 million of uncertain tax positions are included in "Other long-term liabilities" in the Company's Consolidated Balance Sheets as they are not expected to be paid within the next twelve months. As of December 28, 2014, total liabilities of $31.8 million associated with uncertain tax positions were included in "Other long-term liabilities" as they were not expected to be paid within the next 12 months. Due to the complexity and uncertainty associated with its tax positions, the Company cannot make a reasonably reliable estimate of the period in which cash settlement, if any, would be made for its liabilities associated with uncertain tax positions in other long-term liabilities.

Indemnifications

The Company is a party to a variety of agreements under which it may be obligated to indemnify the counterparty with respect to certain matters. Typically, these obligations arise in connection with contracts and license agreements or the sale of assets, under which the Company customarily agrees to hold the other party harmless against losses arising from a breach of warranties, representations and covenants related to such matters as title to assets sold, negligent acts, damage to property, validity of certain intellectual property rights, non-infringement of third-party rights, and certain tax related matters including indemnification to customers under §48(c) solar commercial investment tax credit ("ITC") and Treasury Grant payments under Section 1603 of the American Recovery and Reinvestment Act ("Cash Grant"). In each of these circumstances, payment by the Company is typically subject to the other party making a claim to the Company that is contemplated by and valid under the indemnification provisions of the particular contract, which provisions are typically contract-specific, as well as bringing the claim under the procedures specified in the particular contract. These procedures usually allow the Company to challenge the other party's claims or, in case of breach of intellectual property representations or covenants, to control the defense or settlement of any third party claims brought against the other party. Further, the Company's obligations under these agreements may be limited in terms of activity (typically to replace or correct the products or terminate the agreement with a refund to the other party), duration and/or amounts. In some instances, the Company may have recourse against third parties and/or insurance covering certain payments made by the Company.

In certain limited circumstances the Company has provided indemnification to customers and investors under which the Company is contractually obligated to compensate these parties for losses they may suffer as a result of reductions in benefits received under ITC and Treasury Cash Grant programs. The Company applies for ITC and Cash Grant incentives based on guidance provided by IRS and the Treasury Department, which include assumptions regarding the fair value of the qualified solar power systems, among others.  Certain of the Company’s development agreements, sale-leaseback arrangements, and financing arrangements with investors of its residential lease program, incorporate assumptions regarding the future level of incentives to be received, which in some instances may be claimed directly by its customers and investors. Since the Company cannot determine future revisions to the U.S. Treasury guidelines governing system values or how the IRS will evaluate system values used in claiming ITCs, the Company is unable to reliably estimate the maximum potential future payments that it could have to make under the Company’s contractual investor obligation as of each reporting date.

Defined Benefit Pension Plans

The Company maintains defined benefit pension plans for the majority of its non-U.S. employees. Benefits under these plans are generally based on an employee’s years of service and compensation. Funding requirements are determined on an individual country and plan basis and are subject to local country practices and market circumstances. The funded status of the pension plans, which represents the difference between the benefit obligation and fair value of plan assets, is calculated on a plan-by-plan basis. The benefit obligation and related funded status are determined using assumptions as of the end of each fiscal year. The Company recognizes the overfunded or underfunded status of its pension plans as an asset or liability on its Consolidated Balance Sheets. As of March 29, 2015 and December 28, 2014, the underfunded status of the Company’s pension plans, presented in "Other long-term liabilities" on the Company’s Consolidated Balance Sheets, was $10.8 million and $10.0 million, respectively. The impact of transition assets and obligations and actuarial gains and losses are recorded in "Accumulated other comprehensive loss", and are generally amortized as a component of net periodic cost over the average remaining service period of participating employees. Total other comprehensive loss related to the Company’s pension plans was zero for the three months ended March 29, 2015.

Legal Matters

Tax Benefit Indemnification Litigation

On March 19, 2014, the Company received notice that a lawsuit had been filed by NRG Solar LLC (“NRG”) against SunPower Corporation, Systems, a wholly-owned subsidiary of the Company (“SunPower Systems”), in the Superior Court of Contra Costa County, California.  The complaint asserts that, according to the indemnification provisions in the contract pertaining to SunPower Systems’ sale of a large California solar project to NRG, SunPower Systems owes NRG $75 million in connection with certain tax benefits associated with the project that were approved by the Treasury Department for an amount that was less than expected. The Company does not believe that the facts support NRG’s claim under the operative indemnification provisions and intends to vigorously contest the claim. On May 5, 2014, SunPower Systems filed a demurrer to NRG’s complaint.  The Court sustained the demurrer with leave to amend. NRG filed its amended complaint on September 3, 2014. SunPower Systems filed a demurrer to NRG's amended complaint, which the Court sustained, again, with leave to amend.  NRG filed its second amended complaint on January 13, 2015.  SunPower Systems filed a demurrer to NRG’s second amended complaint, which was overruled, whereupon SunPower Systems filed its answer and also filed a cross-complaint against NRG.  The case currently is pending and no trial date or case schedule has been set yet. The Company is currently unable to determine if the resolution of this matter will have a material effect on the Company's consolidated financial statements. 

First Philec Arbitration

On January 28, 2015, an arbitral tribunal of the International Court of Arbitration of the International Chamber of Commerce declared a binding partial award in the matter of an arbitration between First Philippine Electric Corporation ("FPEC") and First Philippine Solar Corporation ("FPSC") against SunPower Philippines Manufacturing, Ltd. ("SPML"), our wholly-owned subsidiary. FPSC is a joint venture of FPEC and SPML for the purpose of slicing silicon wafers from ingots. SPML has not purchased any wafers from FPSC since the third quarter of 2012.

The tribunal found SPML in breach of its obligations under its supply agreement with FPSC, and in breach of its joint venture agreement with FPEC. The tribunal ordered that (i) SPML must purchase FPEC’s interests in FPSC for an aggregate of $30.3 million, subject to adjustment to account for minority interests, and (ii) after completing the purchase of FPEC’s controlling interest in FPSC, to pay FPSC damages in the amount of $25.2 million. SPML’s purchase of FPEC’s interests in FPSC and the subsequent damages payment to FPSC have been suspended pending the parties’ agreement as to legal arrangements required to complete these transactions. On March 18, 2015, the tribunal held a hearing on the issue of the transfer of FPSC shares. The tribunal has not yet issued a ruling on this issue, and has not yet set a date for SPML's purchase of FPEC's interests in FPSC or the subsequent damages payment to FPSC.

As of March 29, 2015, the Company recorded an accrual of $63.0 million related to this matter based on the Company's best estimate of probable loss.

Other Litigation

The Company is also a party to various other litigation matters and claims that arise from time to time in the ordinary course of its business. While the Company believes that the ultimate outcome of such matters will not have a material adverse effect on the Company, their outcomes are not determinable and negative outcomes may adversely affect the Company's financial position, liquidity or results of operations.

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Derivative Financial Instruments (Tables)

3 Months Ended

Mar. 29, 2015

Foreign Currency Derivatives [Abstract]

Schedule of hedge instruments measured at fair value on a recurring basis

The following tables present information about the Company's hedge instruments measured at fair value on a recurring basis as of March 29, 2015 and December 28, 2014, all of which utilize Level 2 inputs under the fair value hierarchy:

(In thousands)	Balance Sheet Classification	March 29, 2015		December 28, 2014
Assets
Derivatives designated as hedging instruments:
Foreign currency option contracts	Prepaid expenses and other current assets	$	2,416	$	2,240
Foreign currency forward exchange contracts	Prepaid expenses and other current assets	125		4
		$	2,541	$	2,244
Derivatives not designated as hedging instruments:
Foreign currency forward exchange contracts	Prepaid expenses and other current assets	9,655		4,774
		$	9,655	$	4,774
Liabilities
Derivatives designated as hedging instruments:
Foreign currency forward exchange contracts	Accrued liabilities	908		—
Interest rate contracts	Other long-term liabilities	1,148		3,712
		$	2,056	$	3,712
Derivatives not designated as hedging instruments:
Foreign currency forward exchange contracts	Accrued liabilities	1,807		1,345
Interest rate contracts	Other long-term liabilities	9,400		—
		$	11,207	$	1,345

Schedule of offsetting assets and liabilities

	March 29, 2015
							Gross Amounts Not Offset in the Consolidated Balance Sheets, but Have Rights to Offset
(In thousands)	Gross Amounts Recognized		Gross Amounts Offset		Net Amounts Presented		Financial Instruments		Cash Collateral		Net Amounts
Derivative assets	$	12,196	$	—	$	12,196	$	2,715	$	—	$	9,481
Derivative liabilities	$	13,263	$	—	$	13,263	$	2,715	$	—	$	10,548

	December 28, 2014
							Gross Amounts Not Offset in the Consolidated Balance Sheets, but Have Rights to Offset
(In thousands)	Gross Amounts Recognized		Gross Amounts Offset		Net Amounts Presented		Financial Instruments		Cash Collateral		Net Amounts
Derivative assets	$	7,018	$	—	$	7,018	$	1,345	$	—	$	5,673
Derivative liabilities	$	5,057	$	—	$	5,057	$	1,345	$	—	$	3,712

Schedule of derivative instruments, effect on other comprehensive income (loss)

The following table summarizes the pre-tax amount of unrealized gain or loss recognized in "Accumulated other comprehensive income" ("OCI") in "Stockholders' equity" in the Consolidated Balance Sheets:

	Three Months Ended
(In thousands)	March 29, 2015			March 30, 2014
Derivatives designated as cash flow hedges:
Loss in OCI at the beginning of the period	$	(1,443	)	$	(805	)
Unrealized loss recognized in OCI	(2,708		)	(3		)
Less: Loss (gain) reclassified from OCI to earnings	(1,480		)	388
Net gain (loss) on derivatives	$	(4,188	)	$	385
Gain (loss) in OCI at the end of the period	$	(5,631	)	$	(420	)

Schedule of gain or loss recognized in Statement of Operations

The following table summarizes the amount of gain or loss recognized in "Other, net" in the Consolidated Statements of Operations in the three months ended March 29, 2015, and March 30, 2014:

	Three Months Ended
(In thousands)	March 29, 2015			March 30, 2014
Derivatives designated as cash flow hedges:
Gain (loss) recognized in "Other, net" on derivatives (ineffective portion and amount excluded from effectiveness testing)	$	(3,255	)	$	480
Derivatives not designated as hedging instruments:
Gain recognized in "Other, net"	$	7,515		$	1,430

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Equity Method Investments (Details) (USD $)	1 Months Ended		3 Months Ended
	Dec. 31, 2011	Oct. 31, 2012	Mar. 29, 2015	Dec. 28, 2014
Schedule of Equity Method Investments [Line Items]
Equity method investments			$ 213,089,000	$ 210,898,000
CCPV [Member]
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage			25.00%
Payments to acquire equity method investments	16,400,000
Diamond Energy [Member]
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage		25.00%
Payments to acquire equity method investments		3,000,000
AUOSP [Member]
Schedule of Equity Method Investments [Line Items]
Equity method investments			194,200,000	191,700,000
Equity method investment, ownership percentage			50.00%
Joint venture, energy output committed to purchase, percentage			80.00%
Future financing obligation, year one			169,000,000
Additional cash contributions			$ 50,000,000

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Net Income (Loss) Per Share

3 Months Ended

Mar. 29, 2015

Earnings Per Share [Abstract]

Net Income (Loss) Per Share

NET INCOME (LOSS) PER SHARE

The Company calculates net income (loss) per share by dividing earnings allocated to common stockholders by the weighted average number of common shares outstanding for the period.

Diluted weighted average shares is computed using basic weighted average shares plus any potentially dilutive securities outstanding during the period using the treasury-stock-type method and the if-converted method, except when their effect is anti-dilutive. Potentially dilutive securities include stock options, restricted stock units, the Upfront Warrants held by Total, warrants associated with the CSO2015 and CSO2014, and the outstanding senior convertible debentures.

The following table presents the calculation of basic and diluted net income (loss) per share:

	Three Months Ended
(In thousands, except per share amounts)	March 29, 2015			March 30, 2014
Basic net income per share:
Numerator
Net income (loss) attributable to stockholders	$	(9,581	)	$	65,044
Denominator
Basic weighted-average common shares	132,033			122,196
Basic net income (loss) per share	$	(0.07	)	$	0.53
Diluted net income per share:
Numerator
Net income (loss) attributable to stockholders	(9,581		)	65,044
Add: Interest expense incurred on the 0.75% debentures due 2018, net of tax	—			450
Add: Interest expense incurred on the 4.75% debentures due 2014, net of tax	—			2,185
Net income (loss) available to common stockholders	(9,581		)	67,679
Denominator
Basic weighted-average common shares	132,033			122,196
Effect of dilutive securities:
Stock options	—			108
Restricted stock units	—			6,202
Upfront Warrants (held by Total)	—			7,227
Warrants (under the CSO2015)	—			2,915
Warrants (under the CSO2014)	—			1,048
0.75% debentures due 2018	—			12,026
4.75% debentures due 2014	—			8,712
Dilutive weighted-average common shares	132,033			160,434
Dilutive net income (loss) per share	$	(0.07	)	$	0.42

The Upfront Warrants allow Total to acquire up to 9,531,677 shares of the Company's common stock at an exercise price of $7.8685. Holders of the Warrants under the CSO2015 and CSO2014, may acquire up to 11.1 million and 8.7 million shares, respectively, of the Company's common stock at an exercise price of $24.00 and $26.40, respectively. If the market price per share of the Company's common stock for the period exceeds the established strike price of the respective warrants, they will have a dilutive effect on its diluted net income per share using the treasury-stock method. In February 2014, the CSO2014 was settled, leaving none of the related Warrants outstanding (see Note 10).

Holders of the Company's 0.875% debentures due 2021, 0.75% debentures due 2018, and the 4.75% debentures due 2014 may convert the debentures into shares of the Company's common stock, at the applicable conversion rate, at any time on or prior to maturity. These debentures are included in the calculation of diluted net income per share if they were outstanding during the period presented and if their inclusion is dilutive under the if-converted method. In April 2014, the 4.75% debentures matured and were fully settled in both cash and shares of the Company's common stock during the quarter (see Note 10).

Holders of the Company's 4.50% debentures due 2015 could, under certain circumstances at their option and before maturity, convert the debentures into cash, and not into shares of the Company's common stock (or any other securities). Therefore, the 4.50% debentures due 2015 are excluded from the net income per share calculation. In March 2015, the 4.50% debentures due 2015 matured and were settled in cash (see Note 10).

The following is a summary of outstanding anti-dilutive potential common stock that was excluded from income (loss) per diluted share in the following periods:

	Three Months Ended
(In thousands)	March 29, 2015 1	March 30, 2014
Stock options	190	159
Restricted stock units	3,616	464
Upfront Warrants (held by Total)	9,532	—
Warrants (under the CSO2015)	11,096	—
0.75% debentures due 2018	12,026	—
0.875% debentures due 2021	8,203	n/a

¹As a result of the net loss per share for the three months ended March 29, 2015, the inclusion of all potentially dilutive stock options, restricted stock units, and common shares under noted warrants and convertible debt would be anti-dilutive. Therefore, those stock options, restricted stock units and shares were excluded from the computation of the weighted-average shares for diluted net loss per share for such period.

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Transactions with Total and Total S.A. (Tables)

3 Months Ended

Mar. 29, 2015

Related Party Transactions [Abstract]

Schedule of related party transactions

Related-Party Transactions with Total and its Affiliates:

	Three Months Ended
(In thousands)	March 29, 2015			March 30, 2014
Revenue:
EPC, O&M, and components revenue under joint projects	$	199		$	2,889
Research and development expense:
Offsetting contributions received under R&D Agreement	$	(422	)	$	(260	)
Interest expense:
Guarantee fees incurred under Credit Support Agreement	$	2,726		$	2,745
Fees incurred under the Compensation and Funding Agreement	$	—		$	1,200
Interest expense incurred on the 0.75% debentures due 2018	$	375		$	375
Interest expense incurred on the 0.875% debentures due 2021	$	680		$	—

Related-Party Transactions with Investees:

	As of
(In thousands)	March 29, 2015		December 28, 2014
Accounts receivable	$	20,235	$	22,425
Accounts payable	$	26,252	$	50,039
Customer advances	$	1,212	$	4,210
Other long-term assets:
Long-term note receivable	$	1,553	$	1,623

	Three Months Ended
(In thousands)	March 29, 2015		March 30, 2014
Payments made to investees for products/services	$	119,177	$	105,010
Revenue from sales to investees of products/services	$	5,603	$	—

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Restructuring (Details) (USD $)	0 Months Ended	3 Months Ended
	Nov. 14, 2014	Mar. 29, 2015		Mar. 30, 2014
Restructuring Charges [Abstract]
Restructuring charges		$ 3,581,000		$ (461,000)
Restructuring cost incurred to date		140,632,000
Restructuring Reserve [Roll Forward]
Restructuring Reserve, beginning		13,477,000
Restructuring reserve, charges (benefits)		3,581,000		(461,000)
Restructuring reserve, payments		(7,928,000)
Restructuring Reserve, end		9,130,000
November 2014 Plan [Member]
Restructuring Cost and Reserve [Line Items]
Percent of restructuring charges in cash	90.00%
Restructuring Charges [Abstract]
Restructuring charges		3,787,000		0
Restructuring cost incurred to date		16,899,000
Restructuring Reserve [Roll Forward]
Restructuring Reserve, beginning		12,220,000
Restructuring reserve, charges (benefits)		3,787,000
Restructuring reserve, payments		7,597,000
Restructuring Reserve, end		8,410,000
Legacy Restructuring Plans [Member]
Restructuring Charges [Abstract]
Restructuring charges		(206,000)		(461,000)
Restructuring cost incurred to date		123,733,000
Restructuring Reserve [Roll Forward]
Restructuring Reserve, beginning		1,257,000
Restructuring reserve, charges (benefits)		(206,000)
Restructuring reserve, payments		331,000
Restructuring Reserve, end		720,000
Employee Severance [Member] | November 2014 Plan [Member]
Restructuring Charges [Abstract]
Restructuring charges		2,063,000		0
Restructuring cost incurred to date		14,243,000
Restructuring Reserve [Roll Forward]
Restructuring Reserve, beginning		12,075,000
Restructuring reserve, charges (benefits)		2,063,000
Restructuring reserve, payments		6,745,000
Restructuring Reserve, end		7,393,000
Employee Severance [Member] | Legacy Restructuring Plans [Member]
Restructuring Charges [Abstract]
Restructuring charges		(132,000)		(531,000)
Restructuring cost incurred to date		46,577,000
Restructuring Reserve [Roll Forward]
Restructuring Reserve, beginning		421,000
Restructuring reserve, charges (benefits)		(132,000)
Restructuring reserve, payments		144,000
Restructuring Reserve, end		145,000
Facility Closing [Member] | Legacy Restructuring Plans [Member]
Restructuring Charges [Abstract]
Restructuring charges		0		(402,000)
Restructuring cost incurred to date		5,774,000
Restructuring Reserve [Roll Forward]
Restructuring Reserve, beginning		390,000
Restructuring reserve, charges (benefits)		0
Restructuring reserve, payments		80,000
Restructuring Reserve, end		310,000
Other Restructuring [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, charges (benefits)		3,581,000
Other Restructuring [Member] | November 2014 Plan [Member]
Restructuring Charges [Abstract]
Restructuring charges		1,724,000		0
Restructuring cost incurred to date		1,937,000
Restructuring Reserve [Roll Forward]
Restructuring Reserve, beginning		145,000	[1]
Restructuring reserve, charges (benefits)		1,724,000
Restructuring reserve, payments		852,000
Restructuring Reserve, end		1,017,000
Other Restructuring [Member] | Legacy Restructuring Plans [Member]
Restructuring Charges [Abstract]
Restructuring charges		(74,000)		472,000
Restructuring cost incurred to date		10,786,000
Restructuring Reserve [Roll Forward]
Restructuring Reserve, beginning		446,000	[1]
Restructuring reserve, charges (benefits)		(74,000)
Restructuring reserve, payments		107,000
Restructuring Reserve, end		265,000
Non-cash impairment charges [Member] | November 2014 Plan [Member]
Restructuring Charges [Abstract]
Restructuring charges		0		0
Restructuring cost incurred to date		719,000
Non-cash impairment charges [Member] | Legacy Restructuring Plans [Member]
Restructuring Charges [Abstract]
Restructuring charges		0		0
Restructuring cost incurred to date		60,596,000
Minimum [Member] | November 2014 Plan [Member]
Restructuring Cost and Reserve [Line Items]
Reorganization, number of jobs affected	95,000
Reorganization, percentage of workforce affected	1.00%
Restructuring charges	17,000,000
Maximum [Member] | November 2014 Plan [Member]
Restructuring Cost and Reserve [Line Items]
Reorganization, number of jobs affected	115,000
Reorganization, percentage of workforce affected	2.00%
Restructuring charges	25,000,000

[1] 1 Other costs primarily represent associated legal services.

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Business Combinations (Details) (Series of Individually Immaterial Business Acquisitions [Member], USD $) In Thousands, unless otherwise specified	Mar. 29, 2015	Dec. 28, 2014
Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
Intangible assets (excluding goodwill)	$ 17,875	$ 17,375

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Consolidated Statement of Comprehensive Income (Loss) Statement (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 29, 2015	Mar. 30, 2014
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (29,050)	$ 43,034
Components of comprehensive income (loss):
Translation adjustment	(2,003)	274
Net unrealized gain (loss) on derivatives (Note 11)	(4,188)	385
Net loss on long-term pension liability adjustment	0
Income taxes	111	110
Net change in accumulated other comprehensive gain (loss)	(6,080)	549
Total comprehensive income (loss)	(35,130)	43,583
Comprehensive loss attributable to noncontrolling interests and redeemable noncontrolling interests	19,469	(22,010)
Comprehensive income (loss) attributable to stockholders	$ (15,661)	$ 65,593

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Transactions with Total and Total S.A.

3 Months Ended

Mar. 29, 2015

Related Party Transactions [Abstract]

Transactions with Total and Total S.A.

TRANSACTIONS WITH TOTAL AND TOTAL S.A.

In June 2011, Total completed a cash tender offer to acquire 60% of the Company's then outstanding shares of common stock at a price of $23.25 per share, for a total cost of approximately $1.4 billion. In December 2011, the Company entered into a Private Placement Agreement with Total, under which Total purchased, and the Company issued and sold, 18.6 million shares of the Company's common stock for a purchase price of $8.80 per share, thereby increasing Total's ownership to approximately 66% of the Company's outstanding common stock as of that date.

Credit Support Agreement

On April 28, 2011, the Company and Total S.A. entered into a Credit Support Agreement (the "Credit Support Agreement") under which Total S.A. agreed to enter into one or more guarantee agreements (each a "Guaranty") with banks providing letter of credit facilities to the Company. Total S.A. will guarantee the Company's obligation to reimburse the applicable issuing bank a draw on a letter of credit and pay interest thereon in accordance with the letter of credit facility between such bank and the Company. Under the Credit Support Agreement, the Company may also request that Total S.A. provide a Guaranty in support of the Company's payment obligations with respect to a letter of credit facility. The Company is required to pay Total S.A. a guarantee fee for each letter of credit that is the subject of a Guaranty under the Credit Support Agreement and was outstanding for all or part of the preceding calendar quarter. The Credit Support Agreement was amended on June 7, 2011, it became effective on June 28, 2011 in connection with the completion of the Tender Offer (the "CSA Effective Date"), and it was further amended on each of December 12, 2011, and December 14, 2012.

The Credit Support Agreement will terminate following the fifth anniversary of the CSA Effective Date, after the later of the payment in full of all obligations thereunder and the termination or expiration of each Guaranty provided thereunder.

Affiliation Agreement

The Company and Total have entered into an Affiliation Agreement that governs the relationship between Total and the Company (the "Affiliation Agreement"). Until the expiration of a standstill period (the "Standstill Period"), and subject to certain exceptions, Total, Total S.A., any of their respective affiliates and certain other related parties (collectively the "Total Group") may not effect, seek, or enter into discussions with any third-party regarding any transaction that would result in the Total Group beneficially owning shares of the Company in excess of certain thresholds, or request the Company or the Company's independent directors, officers or employees, to amend or waive any of the standstill restrictions applicable to the Total Group.

The Affiliation Agreement imposes certain limitations on the Total Group's ability to seek to effect a tender offer or merger to acquire 100% of the outstanding voting power of the Company and imposes certain limitations on the Total Group's ability to transfer 40% or more of outstanding shares or voting power of the Company to a single person or group that is not a direct or indirect subsidiary of Total S.A. During the Standstill Period, no member of the Total Group may, among other things, solicit proxies or become a participant in an election contest relating to the election of directors to the Company's Board of Directors.

The Affiliation Agreement provides Total with the right to maintain its percentage ownership in connection with any new securities issued by the Company, and Total may also purchase shares on the open market or in private transactions with disinterested stockholders, subject in each case to certain restrictions.

The Affiliation Agreement also imposes certain restrictions with respect to the Company's and its Board of Directors' ability to take certain actions, including specifying certain actions that require approval by the directors other than the directors appointed by Total and other actions that require stockholder approval by Total.

Research & Collaboration Agreement

Total and the Company have entered into a Research & Collaboration Agreement (the "R&D Agreement") that establishes a framework under which the parties engage in long-term research and development collaboration ("R&D Collaboration"). The R&D Collaboration encompasses a number of different projects, with a focus on advancing the Company's technology position in the crystalline silicon domain, as well as ensuring the Company's industrial competitiveness. The R&D Agreement enables a joint committee to identify, plan and manage the R&D Collaboration.

Compensation and Funding Agreement

In February 2012, the Company entered into a Compensation and Funding Agreement (the "Compensation and Funding Agreement") with Total S.A. that established the parameters for the terms of liquidity injections that may be required to be provided by Total S.A. to the Company from time to time. During the term of the Compensation and Funding Agreement, the Company is required to pay Total S.A. a guarantee fee in an amount equal to 2.75% per annum of the average amount of the Company's indebtedness that is guaranteed by Total S.A. pursuant to any guaranty issued in accordance with the terms of the Compensation and Funding Agreement during such quarter. Any payment obligations of the Company to Total S.A. under the Compensation and Funding Agreement that are not paid when due accrue interest until paid in full at a rate equal to 6-month U.S. LIBOR as in effect from time to time plus 5.00% per annum.

Upfront Warrant

In February 2012, the Company issued a warrant (the "Upfront Warrant") to Total S.A. to purchase 9,531,677 shares of the Company's common stock with an exercise price of $7.8685, subject to adjustment for customary anti-dilution and other events. The Upfront Warrant, governed by the Private Placement Agreement and the Compensation and Funding Agreement, is exercisable at any time for seven years after its issuance, provided that, so long as at least $25.0 million in aggregate of the Company's convertible debt remains outstanding, such exercise will not cause "any person," including Total S.A., to, directly or indirectly, including through one or more wholly-owned subsidiaries, become the "beneficial owner" (as such terms are defined in Rule 13d-3 and Rule 13d-5 under the Securities and Exchange Act of 1934, as amended), of more than 74.99% of the voting power of the Company's common stock at such time, a circumstance which would trigger the repurchase or conversion of the Company's existing convertible debt.

0.75% Debentures Due 2018

In May 2013, the Company issued $300.0 million in principal amount of its 0.75% senior convertible debentures due 2018 (the "0.75% debentures due 2018"). $200.0 million in aggregate principal amount of the 0.75% debentures due 2018 were acquired by Total. The 0.75% debentures due 2018 are convertible into shares of the Company's common stock at any time based on an initial conversion price equal to $24.95 per share, which provides Total the right to acquire up to 8,017,420 shares of the Company's common stock. The applicable conversion rate may adjust in certain circumstances, including a fundamental change, as described in the indenture governing the 0.75% debentures due 2018 (see Note 10).

0.875% Debentures Due 2021

In June 2014, the Company issued $400.0 million in principal amount of its 0.875% senior convertible debentures due 2021 (the "0.875% debentures due 2021"). An aggregate principal amount of $250.0 million of the 0.875% debentures due 2021 were acquired by Total. The 0.875% debentures due 2021 are convertible into shares of the Company's common stock at any time based on an initial conversion price equal to $48.76 per share, which provides Total the right to acquire up to 5,126,775 shares of the Company's common stock. The applicable conversion rate may adjust in certain circumstances, including a fundamental change, as described in the indenture governing the 0.875% debentures due 2021 (see Note 10).

Joint Projects with Total and its Affiliates:

The Company enters into various engineering, procurement and construction ("EPC") and operations and maintenance ("O&M") agreements relating to solar projects, including EPC and O&M services agreements relating to projects owned or partially owned by Total and its affiliates. As of March 29, 2015, the Company had $0.7 million of "Costs and estimated earnings in excess of billings" and $1.6 million of "Accounts receivable, net" on its Consolidated Balance Sheets related to projects in which Total and its affiliates have a direct or indirect material interest.

Related-Party Transactions with Total and its Affiliates:

	Three Months Ended
(In thousands)	March 29, 2015			March 30, 2014
Revenue:
EPC, O&M, and components revenue under joint projects	$	199		$	2,889
Research and development expense:
Offsetting contributions received under R&D Agreement	$	(422	)	$	(260	)
Interest expense:
Guarantee fees incurred under Credit Support Agreement	$	2,726		$	2,745
Fees incurred under the Compensation and Funding Agreement	$	—		$	1,200
Interest expense incurred on the 0.75% debentures due 2018	$	375		$	375
Interest expense incurred on the 0.875% debentures due 2021	$	680		$	—

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Subsequent Events (Details) (First Philec Arbitration [Member], USD $) In Millions, unless otherwise specified	0 Months Ended
	Jan. 28, 2015	Mar. 29, 2015
Subsequent Event [Line Items]
Loss contingency accrual recorded		$ 63.0
SunPower Philippines Manufacturing LTD [Member] | First Philippine Solar Corporation [Member] | Judicial Ruling [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Court required payments to third party to buyout minority interests, amount	30.3
Damages awarded	$ 25.2

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Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Mar. 29, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Other Intangible Assets

The following tables present details of the Company's acquired other intangible assets:

(In thousands)	Gross		Accumulated Amortization			Net
As of March 29, 2015
Patents and purchased technology	$	13,675	$	(1,088	)	$	12,587
Purchased in-process research and development	3,700		—			3,700
Other	$	500	$	—		500
	$	17,875	$	(1,088	)	$	16,787
As of December 28, 2014
Patents and purchased technology	$	13,675	$	(615	)	$	13,060
Purchased in-process research and development	$	3,700	$	—		$	3,700
	$	17,375	$	(615	)	$	16,760

Schedule of Other Intangible Assets Future Amortization Expense

As of March 29, 2015, the estimated future amortization expense related to intangible assets with finite useful lives is as follows:

(In thousands)	Amount
Fiscal Year
2015 (remaining nine months)	$	1,891
2016	2,114
2017	1,989
2018	1,989
2019	1,989
Thereafter	3,115
	$	13,087

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The Company and Summary of Significant Accounting Policies Property, Plant & Equipment, Estimated Useful Life (Details)	12 Months Ended
	Dec. 28, 2014
Building [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	20 years
Leasehold Improvements [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	20 years
Leasehold Improvements [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	1 year
Machinery and Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	15 years
Machinery and Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	8 years
Computer Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	7 years
Computer Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	2 years
Solar power systems [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	30 years
Furniture and Fixtures [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	5 years
Furniture and Fixtures [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	3 years

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Income Taxes

3 Months Ended

Mar. 29, 2015

Income Tax Disclosure [Abstract]

Income Taxes

INCOME TAXES

In the three months ended March 29, 2015 and March 30, 2014, the Company's income tax provision of $2.4 million and $13.6 million on a loss before income taxes and equity in earnings of unconsolidated investees of $28.9 million and an income before income taxes and equity in earnings of unconsolidated investees of $54.9 million, respectively, was primarily due to projected tax expense in profitable foreign jurisdictions as well as minimum taxes.