The Company's Most Powerful Solar Panels to Date

MARLBORO, Mass.--(BUSINESS WIRE)--June 19, 2008--Evergreen Solar, Inc. (Nasdaq: ESLR) introduced its new ES-A Series Solar Panels at its booth during InterSolar 2008 in Munich, Germany, June 12-14. This new line of 200, 205 and 210 W solar panels features the most powerful products Evergreen Solar has produced. And with a -0, +5W specification, the ES-A Series also provides the best power tolerance currently available in the industry.

The ES-A series is a range of high quality String Ribbon(TM) solar panels offering exceptional performance, cost effective installation and industry-leading environmental credentials. Based on customer input, these panels feature new extended length cables that can eliminate home-run wiring, new clickable connectors that make connections between panels quick and reliable, as well as a new low voltage configuration that enables the most cost-effective commercial-scale installations.

All Evergreen Solar panels are constructed using its "String Ribbon" 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 50% 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, the new ES-A series also uses 100% cardboard-free packaging to minimize job site waste and disposal costs.

"The ES-A Series further positions Evergreen Solar as a leader in producing powerful, efficient, and environmentally-friendly solar panels," said Dr. Terry Bailey, Senior Vice President, Marketing and Sales. "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. At the same time, we are proud to lead the industry in environmental credentials with the smallest carbon footprint and the quickest energy payback available today."

The new ES-A series panels are the first production using the Company's revolutionary Quad furnace which creates four silicon "ribbons" simultaneously and uses state of the art automated ribbon-cutting technology. The Company's new Quad furnace was also on display at InterSolar 2008. The Quad furnaces will be used for all of the company's production in its new manufacturing plant in Devens, Massachusetts scheduled to start panel production by July of this year.

The ES-A Series panels are made using Evergreen Solar's proprietary "String Ribbon" technology. In the String Ribbon(TM) process, a set of special parallel strings are pulled continuously through a small molten pool of silicon inside a custom furnace. A thin "ribbon" is created between the two strings as the silicon cools and re-crystallizes. The ribbon is then cut into wafers, which are converted into solar cells and used in the production of solar panels - all under one roof. The process is continuous, clean and efficient.

About Evergreen Solar, Inc.

Evergreen Solar, Inc. develops, manufactures and markets solar power products using proprietary, low-cost manufacturing technologies. The Company's patented crystalline silicon wafer technology uses significantly less silicon than conventional approaches. 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.

Safe Harbor Statement

This press release contains forward-looking statements within the meaning of federal securities laws. Evergreen Solar cautions you that any statements contained in this press release that are not strictly historical statements constitute forward-looking statements. Such forward-looking statements include, but are not limited to, those related to: the performance, cost effective installation and industry-leading environmental credentials of the company's solar panels; the start-up and future production capacity of the company's Devens manufacturing facility; the company's ability to protect the intellectual property incorporated in String Ribbon, the company's Quad furnace and other proprietary technologies. These statements are neither promises nor guarantees, and involve risks and uncertainties that could cause actual results to differ materially from such forward-looking statements. Such risks and uncertainties are identified in the company's filings with the Securities and Exchange Commission - including the company's Annual and Quarterly Reports on Forms 10-K and 10-Q filed with the SEC (copies of which may be obtained at the SEC's website at: http://www.sec.gov) - could impact the forward-looking statements contained in this press release. Readers should not place undue reliance on any such forward-looking statements, which speak only as of the date they are made. Evergreen Solar disclaims any obligation to publicly update or revise any such statements to reflect any change in company expectations, or in events, conditions or circumstances on which any such statements may be based, or that may affect the likelihood that actual results will differ from those set forth in the forward-looking statements.