SunPower CEO, Thomas Werner, to Deliver Keynote at 2007 Clean-Tech Investor Summit


Company to Webcast Presentation on January 24, 2007 at 3:30 p.m. PST

SAN JOSE, Calif., Jan. 18 -- SunPower Corporation (NASDAQ:SPWR), a Silicon Valley-based manufacturer of the world's highest- efficiency, commercially available solar cells and solar panels, today announced that its CEO, Thomas Werner, will deliver a keynote presentation at the annual Clean-Tech Investor Summit on January 24, 2007, at 3:30 p.m. Pacific Standard Time. The event is being held at the Renaissance Esmeralda in Palm Springs, Calif. Werner's keynote will be simultaneously webcast on SunPower's web site at http://investors.sunpowercorp.com/events.cfm

Werner will speak about the company's approach to value chain optimization, its recent merger with PowerLight Corp. and SunPower's overall business development strategies.

About SunPower Corp.

SunPower Corp. (NASDAQ:SPWR) designs, manufactures and markets high- performance solar electric technology worldwide. SunPower'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. SunPower's PowerLight subsidiary is a leading global provider of large-scale solar power systems, with over 100 megawatts installed. For more information on SunPower please visit the SunPower website at www.sunpowercorp.com. SunPower is a majority-owned subsidiary of Cypress Semiconductor Corp. (NYSE:CY).

Source: SunPower Corporation

CONTACT:

Julie Blunden,
SunPower Corp.,
+1-408-470-4277

Susan DeVico,
SunPower Corp.,
+1-510-339-1527

Web site: www.sunpowercorp.com/

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