Evergreen Solar Introduces New Higher Power String Ribbon(TM) Solar Panel

Evergreen Solar Introduces New Higher Power String Ribbon(TM) Solar Panel at Solar Expo 2010 in Verona, Italy

The Company's most powerful solar panel to date

Evergreen Solar, Inc. (Nasdaq: ESLR), a manufacturer of String Ribbon(TM) solar power products with its proprietary silicon wafer technology, today introduced its newest ES-A series solar panel, a 215-watt panel that is the company's most powerful to date, at the Solar Expo in Verona, Italy, May 5-7, 2010.

The ES-A series is a range of high quality String Ribbon(TM) solar panels offering exceptional performance and industry-leading environmental credentials. This new ES-A-215 panel complements the company's current line of 200, 205 and 210 watt solar panels designed with a black frame that, when installed on roofs, improves the aesthetic appearance of solar arrays. The new ES-A 215 panel will be available for viewing throughout Solar Expo at the company's booth located in Hall 4, F3.1.

"Our new ES-A 215 solar panel continues to position Evergreen Solar as a leader in producing powerful, efficient, and environmentally-friendly solar panels," said Scott Gish, Evergreen Solar's Vice President, Sales and Marketing. "These panels are our most powerful solar panels to date with the tightest power tolerance in the industry, meaning our customers get optimal system performance right out of the box. At the same time, we are proud to lead the industry in environmental credentials with the smallest carbon footprint and the quickest energy payback of any silicon- based solar panel available today."

All Evergreen Solar String Ribbon solar panels are constructed using its proprietary wafer manufacturing technology which is the most environmentally-friendly process in the industry with virtually no wasted silicon. The carbon footprint of these panels is up to 30% smaller than that of its competitors. These solar panels also have the quickest energy payback, now as fast as 12 months for installed panels. And to round out the company's leading environmental credentials, this new ES-A panel also uses 100% cardboard-free packaging to minimize job site waste and disposal costs.

About Evergreen Solar, Inc.

Evergreen Solar, Inc. develops, manufactures and markets String Ribbon(TM) solar power products using its proprietary, low-cost silicon wafer technology. The Company's patented wafer manufacturing technology uses significantly less polysilicon than conventional processes. Evergreen Solar's products provide reliable and environmentally clean electric power for residential and commercial applications globally. For more information about the Company, please visit www.evergreensolar.com. Evergreen Solar(R) and String Ribbon(TM) are trademarks of Evergreen Solar, Inc.

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