SunPower Finalizes Sale of 13-Megawatt Solare Roma Power Plant in 2010

SAN JOSE, California, January 3, 2011 - SunPower Corp. (Nasdaq: SPWRA, SPWRB) today announced that it completed
the sale of its 13-megawatt (MW) Solare Roma solar power plant to Allianz
Renewable Energy Partners IV Ltd., a wholly-owned subsidiary of Allianz SE on
December 30, 2010. SunPower designed and built the solar power plant and will
provide ongoing operations and maintenance services for the new owner.

"The finalized sale of the Solare Roma power plant, along with our
recently announced Montalto di Castro 44-megawatt solar park, completes our
2010 plan to develop, construct and monetize 85-megawatts of projects in
Italy," said Dennis Arriola, SunPower chief financial officer. "We're pleased
with our accomplishments this year and are well positioned to continue our
success in 2011."

The 13-MW Solare Roma power plant is located in the municipality of
Anguillara, Province of Rome, Lazio region, Italy.

Editors' Note: The capacity of power plants in this release is described
in approximate megawatts on an alternating current (AC) basis unless
otherwise noted. The Solare Roma power plant is approximately 15-MW in total
direct current (DC) and the Montalto di Castro solar parks total
approximately 85-MW in total DC.

About SunPower

Founded in 1985, SunPower Corp. (Nasdaq: SPWRA, SPWRB) designs,
manufactures and delivers the planet's most powerful solar technology broadly
available today. Residential, business, government and utility customers rely
on the company's experience and proven results to maximize return on
investment. With headquarters in San Jose, Calif., SunPower has offices in
North America, Europe, Australia and Asia. For more information, visit
www.sunpowercorp.com.

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

Media, Helen Kendrick, +1-408-240-5585, hkendrick at sunpowercorp.com, or Investors, Bob Okunski, +1-408-240-5447, Bokunski at sunpowercorp.com, both of SunPower Corp.