SunPower Announces World-Record Efficiency Solar Cell Now in Commercial Production

Third Generation Maxeon Solar Cell Delivers Efficiency Rating of up to 24 Percent


SAN JOSE, Calif., March 27, 2012 /PRNewswire/ -- SunPower Corp. (NASDAQ: SPWR), a Silicon Valley-based manufacturer of high efficiency solar cells, solar panels and solar systems today announced that its third generation SunPower® Maxeon™ solar cell (Maxeon) is now in commercial production.  This world-record efficiency solar cell delivers sunlight to electricity conversion efficiency of up to 24 percent.

SunPower's new Maxeon all-back contact solar cell measures 160 mm in size and produces more energy per square meter when compared to conventional crystalline solar cells.  The new cell has low reverse-bias breakdown voltage to deliver better performance in shady and dusty conditions, and better temperature coefficient for increased energy harvest in hot environments.  The new Maxeon solar cell offers improved aesthetics with a consistent, homogenous, sleek black look.

"We're pleased to move our world-record breaking efficiency solar cell from the lab into commercial production," said Tom Werner, SunPower president and CEO.  "With the new Maxeon solar cells, offering efficiencies of up to 24 percent, SunPower continues to lead the industry in technology innovation, delivering to its customers the highest efficiency, most reliable solar panels for guaranteed performance."

The new Maxeon solar cells are currently being integrated into select SunPower solar panels that deliver efficiencies exceeding 20 percent.  These panels contain up to 128 solar cells per panel and will be availability in limited quantities in 2012.

About SunPower Corp.
SunPower Corp. (NASDAQ: SPWR) designs, manufactures and delivers the highest efficiency, highest reliability solar panels and systems available today. Residential, business, government and utility customers rely on the company's quarter century of experience and guaranteed performance to provide maximum return on investment throughout the life of the solar system.  Headquartered in San Jose, Calif., SunPower has offices in North America, Europe, Australia and Asia.  For more information, visit www.sunpowercorp.com.

SOURCE SunPower Corp.

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