Notice is hereby given that Glancy Binkow&Goldberg LLP has filed a class action lawsuit in the United States District Court for the Northern District of California on behalf of a class consisting of all persons or entities who purchased the securities of SunPower Corporation ("SunPower" or the "Company") (Nasdaq:SPWRA; SPWRB) between April 17, 2008 and November 16, 2009, inclusive (the "Class Period").

A copy of the Complaint is available from the court or from Glancy Binkow&Goldberg LLP. Please contact us by phone to discuss this action or to obtain a copy of the Complaint at (310) 201-9150 or Toll Free at (888) 773-9224, by email at shareholders@glancylaw.com, or visit our website at http://www.glancylaw.com.

The Complaint charges SunPower and certain of the Company's executive officers with violations of federal securities laws. SunPower designs, manufactures and delivers high-performance solar electric systems worldwide for residential, commercial and utility-scale power plant customers. The Complaint alleges that throughout the Class Period defendants knew or recklessly disregarded that their public statements concerning SunPower's financial performance were materially false and misleading. Specifically, defendants made false and/or misleading statements and/or failed to disclose: (1) that the Company made unsubstantiated accounting entries during the Class Period; (2) that, as a result, the Company's financial results were overstated during the Class Period; (3) that the Company's financial results were not prepared in accordance with Generally Accepted Accounting Principles ("GAAP"); (4) that the Company lacked adequate internal and financial controls; and (5), as a result of the above, the Company's financial statements were materially false and misleading at all relevant times.

On November 16, 2009, SunPower shocked investors when it announced an internal investigation by its Audit Committee of certain unsubstantiated accounting entries related to cost of goods sold in the Company's Philippines operations. SunPower disclosed that the Company's Audit Committee concluded that the Company's previously issued interim financial statements for each of the 2009 quarterly periods, the previously reported financial results for the fiscal year ending December 28, 2008, the financial information in its quarterly reports on Form 10-Q for the 2009 quarters, the financial information in the 2008 annual report on Form 10-K, and the guidance provided by the Company for the 2009 fiscal year, should no longer be relied upon.

On this news, shares of SunPower's Class A common stock declined $5.04 per share, or approximately 18.51%, to close on November 17, 2009, at $22.19 per share, on heavy volume, and shares of SunPower's Class B common stock declined $4.43 per share, approximately 18.54%, to close on November 17, 2009, at $19.47 per share, on heavy volume.

Plaintiff seeks to recover damages on behalf of class members and is represented by Glancy Binkow&Goldberg LLP, a law firm with significant experience in prosecuting class actions, and substantial expertise in actions involving corporate fraud.

If you are a member of the class described above, you may move the Court, no later than January 19, 2010, to serve as lead plaintiff, however, you must meet certain legal requirements. If you wish to discuss this action or have any questions concerning this Notice or your rights or interests with respect to these matters, please contact Michael Goldberg, Esquire, or Richard A. Maniskas, Esquire, of Glancy Binkow&Goldberg LLP, 1801 Avenue of the Stars, Suite 311, Los Angeles, California 90067, by telephone at (310) 201-9150 or Toll Free at (888) 773-9224, by e-mail to shareholders@glancylaw.com, or visit our website at http://www.glancylaw.com.

Contacts:

Glancy Binkow&Goldberg LLP, Los Angeles, CA
Michael Goldberg
Richard A. Maniskas
310-201-9150 or 888-773-9224
shareholders@glancylaw.com
www.glancylaw.com

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