Evergreen Solar Introduces Sunplicity Flat Roof Mounting System for EC

    Business Editors/Energy Editors

    MARLBORO, Mass.--(BUSINESS WIRE)--Feb. 17, 2005--

    Offers Fast, Cost-Effective Installation on Commercial Buildings Without Roof Penetrations

    Evergreen Solar, Inc. (Nasdaq: ESLR), a manufacturer of solar power products based on its proprietary, low-cost String Ribbon(TM) wafer technology, today introduced Sunplicity(TM), an advanced Flat Roof Mounting System (FRMS) designed specifically for use with its EC-100 Series modules.
    Geared for large and small solar PV installations on commercial, institutional and government buildings, the Sunplicity FRMS is a non-penetrating, aerodynamic, self-ballasted system that enables faster, easier and more cost-effective PV installations.
    "Sunplicity is a customer-driven product extension that directly complements our growing module production capabilities," said Terry Bailey, Senior Vice President, Marketing and Sales. "The Sunplicity FRMS assures that our customers have clear access to the large and rapidly growing grid-tied commercial flat roof market."
    Rated for wind speeds as high as 130 miles per hour, the Sunplicity FRMS employs a simplified grounding system that exploits the electrical conductivity of the FRMS frame matrix. Solar panels are quickly grounded to the frame matrix. Sunplicity's grounding system represents a major advance over other systems.
    Evergreen Solar is continually working to improve its unique products and lower the cost of solar electricity. Sunplicity's five-degree pitch on panels provides for self-cleaning to maximize electricity production. To further increase energy output, Sunplicity is designed to keep panels as cool as possible by promoting efficient airflow. Other design features eliminate roof ponding while providing easy access to panel wiring and unhindered roof-surface inspection capability.
    Bailey explained, "Sunplicity is what project developers have been asking for. Sunplicity is easy to lay out, row spacing is field-selectable and roof-area coverage is as high as 87 percent. It's simple to access a single panel anywhere in the array. These are significant design advantages over competing products."

    About Evergreen Solar, Inc.

    Evergreen Solar, Inc. (Nasdaq: ESLR) develops, manufactures and markets solar power products utilizing the Company's proprietary low-cost manufacturing technologies. The products provide reliable and environmentally clean electric power in global markets. Solar power applications include complete power systems for electric utility customers choosing to generate their own environmentally benign power, as well as wireless power for remote homes, water pumping, lighting and rural electrification. For more information visit www.evergreensolar.com.
    Evergreen Solar(R) is a registered trademark and String Ribbon and Sunplicity are trademarks of Evergreen Solar, Inc.

    A Cautionary Note Regarding Forward-Looking Statements

    This press release contains forward-looking statements within the meaning of federal securities laws. The Company cautions you that any statements contained in this press release which are not strictly historical statements constitute forward-looking statements. Such statements include, but are not limited to, statements relating to the performance of the Company's Sunplicity products, the advantages of those products to customers and the Company's ability to continually improve its products and lower the cost of solar electricity. 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 include, among other things, the following factors: the Company's business and results of operations could be materially impaired as a result of poor manufacturing or product performance or higher costs attributable to the development of the Company's thin ribbon technology or expansion or operation of manufacturing facilities; the market for solar power products is emerging and rapidly developing and market demand for solar power products such as the Company's products is uncertain; the Company has limited experience manufacturing large volumes of solar power products on a commercial basis at acceptable costs, which it will need to do in order to be successful; the Company faces intense competition from other companies producing solar power and other distributed energy generation products; the Company sells via a small number of reseller partners and the Company's relationships with current or prospective marketing or strategic partners may be affected by adverse developments in the Company's business, the partner's business, competitive factors, solar power market conditions or financial market conditions; and the market for products such as the Company's solar power products is heavily influenced by federal, state, local and foreign government regulations and policies, as well as the availability and size of government subsidies and economic incentives, over which the Company has little control. In addition to the foregoing factors, the other economic, competitive, governmental, technological and other risk factors identified in the Company's filings with the Securities and Exchange Commission - including the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2003, the Quarterly Report on Form 10-Q for the quarter ended September 30, 2004, filed on November 12, 2004 and the Company's current report on Form 8-K/A , filed on January 21, 2005 (copies of which may be obtained at the SEC's website at: 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. The Company 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.

--30--NC/bo*

CONTACT: Evergreen Solar, Inc. Alan J. King, 508-357-2221 x 706 National Sales Manager sales@evergreensolar.com or Media: Commonwealth Creative Associates Jim Ball, 508-620-0791 x20 Vice President jimb@commcreative.com

KEYWORD: MASSACHUSETTS INDUSTRY KEYWORD: CONSUMER/HOUSEHOLD ENVIRONMENT ENERGY UTILITIES PRODUCT SOURCE: Evergreen Solar, Inc.

Copyright Business Wire 2005