Definitive Additional Materials



Washington, D.C. 20549


(Rule 14a-101)



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Exchange Act of 1934 (Amendment No.      )

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 Definitive Proxy Statement

 Definitive Additional Materials

 Soliciting Material Pursuant to §240.14a-12

SunPower Corporation


(Name of Registrant as Specified In Its Charter)



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*** Exercise Your Right to Vote ***Important Notice Regarding the Availability of Proxy Materials for the Shareholder Meeting to Be Held on May 9, 2012. SUNPOWER CORPORATION Meeting Information Meeting Type: Annual Meeting For holders as of: March 12, 2012 Date: May 9, 2012 Time: 12:00 p.m. PDT Location: SunPower Corporation 77 Rio Robles San Jose, California 95134 Meeting Directions: For directions to the Annual Meeting please call: 408-240-5501 You are receiving this communication because you hold shares in the above named company. This is not a ballot. You cannot use this notice to vote these shares. This communication presents only an overview of the more complete proxy materials that are available to you on the Internet or by mail upon request. You may view the proxy materials online at or easily request a paper or e-mail copy (see reverse side). We encourage you to access and review all of the important information contained in the proxy materials before voting. See the reverse side of this notice to obtain proxy materials and voting instructions. SUNPOWER CORPORATION 77 RIO ROBLES SAN JOSE, CA 95134 M43706-Z57404


Before You VoteHow to Access the Proxy Materials Proxy Materials Available to VIEW or RECEIVE: NOTICE AND PROXY STATEMENT AND ANNUAL REPORT How to View Online: Have the information that is printed in the box marked by the arrow XXXX XXXX XXXX (located on the following page) and visit: How to Request and Receive a PAPER or E-MAIL Copy: If you want to receive a paper or e-mail copy of these documents, you must request one. There is NO charge for requesting a copy. Please choose one of the following methods to make your request: 1) BY INTERNET: 2) BY TELEPHONE: 1-800-579-1639 3) BY E-MAIL*: * If requesting materials by e-mail, please send a blank e-mail with the information that is printed in the box marked by the arrow XXXX XXXX XXXX (located on the following page) in the subject line. Requests, instructions and other inquiries sent to this e-mail address will NOT be forwarded to your investment advisor. Please make the request as instructed above on or before April 25, 2012 to facilitate timely delivery. How To Vote Please Choose One of the Following Voting Methods Vote In Person: Many shareholder meetings have attendance requirements including, but not limited to, the possession of an attendance ticket issued by the entity holding the meeting. Please check the meeting materials for any special requirements for meeting attendance. At the meeting, you will need to request a ballot to vote these shares. Vote By Internet: To vote now by Internet, go to Have the information that is printed in the box marked by the arrow XXXX XXXX XXXX available (located on the following page) and follow the instructions. Vote By Mail: You can vote by mail by requesting a paper copy of the materials, which will include a proxy card. M43707-Z57404


Voting Items The Board of Directors recommends you vote FOR the following: 1. Election of Directors Nominees: 01) Arnaud Chaperon 02) Jérôme Schmitt 03) Pat Wood III The Board of Directors recommends you vote FOR the following proposal: 2. The proposal to approve, in an advisory vote, our named executive officer compensation. NOTE: In their discretion, Thomas H. Werner, Charles D. Boynton, Christopher S. Jaap, or any of them, each with power of substitution, are authorized to vote upon such other matter or matters as may properly come before the meeting or any adjournment or postponement thereof. M43707-Z57404 M43707-Z57404