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SunPower to Announce Third-Quarter Results on October 18, 2007
Event to be Webcast at: http://investors.sunpowercorp.com/events.cfm
SAN JOSE, Calif.

SAN JOSE, Calif., Oct. 1, 2007  /PRNewswire/ -- SunPower Corporation (NASDAQ: SPWR) will announce its third-quarter 2007 earnings in a conference call on Thursday, October 18th at 10:30 a.m. Pacific Time. The dial-in number for the quarterly conference call is 517-623-4618, and the call passcode is "SunPower." This event will be webcast and can be accessed from SunPower's website at http://investors.sunpowercorp.com/events.cfm. The webcast will be archived for two weeks following the conference call.

Full text of the press release and supplemental financial information will be made available on the SunPower web site at http://investors.sunpowercorp.com/ on the morning of the conference call.

About SunPower

SunPower Corporation (NASDAQ: SPWR) designs, manufactures and markets high-performance solar electric technology worldwide. The company's high- efficiency solar cells and panels generate up to 50 percent more power per unit area than conventional solar technologies and have a uniquely attractive, all-black appearance. For more information, please visit the SunPower website at http://www.sunpowercorp.com/. SunPower is a majority-owned subsidiary of Cypress Semiconductor Corp. (NYSE: CY).

SunPower is a registered trademark of SunPower Corp. Cypress is a registered trademark of Cypress Semiconductor Corp. All other trademarks are the property of their respective owners

First Call Analyst:
FCMN Contact:

SOURCE: SunPower Corporation

CONTACT: Ingrid Ekstrom of SunPower Corporation, +1-510-868-1368,
iekstrom@sunpowercorp.com; or Sarahjane Sacchetti of Bite Communications,
Sarahjane.sacchetti@bitepr.com, +1-415-284-8230, for SunPower

Web site: http://www.sunpowercorp.com/