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SunPower Launches New AC Solar Panels with Integrated Microinverter Solution
Leader in U.S. Residential Market to Offer AC Solar Panels with 25-Year Warranty to Homeowners

SAN JOSE, Calif., Oct. 17, 2011 /PRNewswire-FirstCall/ -- SunPower Corp. (NASDAQ: SPWRA, SPWRB), a Silicon Valley-based manufacturer of high-efficiency solar cells, solar panels and solar systems, today launched the SunPower® E18 & E19 AC Solar Panel series, integrating industry-leading AC microinverters with its high-efficiency solar panels.  SunPower is the market share leader in the U.S. residential market.

The E18 & E19 AC solar panels offer residential customers increased flexibility, as panels with microinverters can be easily installed on most homes, including those with complex rooftops or shading from trees, chimneys and other obstructions.  Power generated by the rooftop solar system is optimized at the individual solar panel level, delivering a greater overall energy yield, and is easily monitored to ensure maximum power is being produced.  The attractive design of the AC solar panels, combined with the most efficient and reliable solar technology, are backed by SunPower's industry-leading 25 year warranty.  Microinverters are integrated with SunPower's solar panels at the factory level, reducing installation time, complexity and overall cost of the system.

"SunPower's AC solar panels are an industry game-changer, offering our customers the highest efficiency solar panels integrated with best-in-class microinverters," said Jim Pape, president of SunPower's residential and commercial business group.  "SunPower has historically offered the most reliable solar panels with guaranteed performance, and our new AC solar panels broaden our reach into the residential market."

SunPower AC solar panels are integrated with the industry-leading SolarBridge Pantheon™ microinverter.  The all-black, aesthetically pleasing E18/225 watt AC solar panel and the maximum-efficiency E19/240 watt AC solar panel will be available in the U.S. in early 2012.  The AC panels feature SunPower's 22.4 percent efficient patented Maxeon™ cell technology.  The all-back contact Maxeon solar cell captures significantly more sunlight and conducts more electrical current than conventional solar cells, and holds the world record for efficiency among commercially available, mass-produced solar cells.

About SunPower

SunPower Corp. (Nasdaq: SPWRA, SPWRB) 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.

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

SOURCE SunPower Corp.

For further information: Helen Kendrick of SunPower Corp., +1-408-240-5585, Helen.Kendrick@sunpowercorp.com