SunPower CEO, Thomas Werner, to Speak at the Thomas Weisel Partners Alternative Energy Conference

SAN JOSE, Calif., June 12 /PRNewswire-FirstCall/ -- SunPower Corporation , a Silicon Valley-based manufacturer of the world's highest efficiency, commercially available silicon solar cells and panels, today announced that its CEO, Thomas Werner, will deliver a presentation at the Thomas Weisel Partners Alternative Energy Conference on June 15, 2006, at 2:00 p.m. EDT. The event is being held at the offices of Thomas Weisel Partners in New York City. Werner will highlight SunPower's financial and operations successes to date.

A live webcast of the presentation will be available through SunPower's website at http://investors.sunpowercorp.com/events.cfm.

About SunPower

SunPower Corporation designs and manufactures high-efficiency silicon solar cells and solar panels based on an all-back contact cell design. SunPower's 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 on SunPower or solar technology, please visit the SunPower website at http://www.sunpowercorp.com/. SunPower is a majority-owned subsidiary of Cypress Semiconductor Corp. .

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