Evergreen Solar To Host First-Quarter Conference Call on April 28, 200

    Business Editors/Energy Editors

    MARLBORO, Mass.--(BUSINESS WIRE)--April 21, 2005--Evergreen Solar, Inc. (Nasdaq: ESLR), a manufacturer of solar power products with its proprietary, low-cost String Ribbon(TM) wafer technology, today announced that it will release its first-quarter 2005 financial results before the market opens on Thursday, April 28, 2005.
    Management will conduct a conference call at 11:00 a.m. (ET) that morning to review the Company's first-quarter financial results. The conference call will be broadcast live over the Internet. Individuals interested in listening to the webcast should log onto the "Investors" section of Evergreen Solar's website, www.evergreensolar.com, prior to the event.
    The call also can be accessed by dialing (312) 461-0745 or (800) 449-5865 prior to the start of the call. For those unable to join the live conference call, a replay will be available from 2:00 p.m. (ET) on April 28 through midnight (ET) on May 4 at (719) 457-0820 or (888) 203-1112 (passcode: 2818495), or by visiting the Company's website.

    About Evergreen Solar, Inc.

    Evergreen Solar, Inc. (Nasdaq: ESLR) develops, manufactures and markets solar power products using 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(TM) is a trademark of Evergreen Solar, Inc.

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CONTACT: Evergreen Solar, Inc. Richard G. Chleboski, 508-357-2221 x218 Chief Financial Officer investors@evergreensolar.com or Sharon Merrill Associates, Inc. Jim Buckley, 617-542-5300 eslr@investorrelations.com

KEYWORD: MASSACHUSETTS INDUSTRY KEYWORD: ENERGY ENVIRONMENT MANUFACTURING EARNINGS CONFERENCE CALLS SOURCE: Evergreen Solar, Inc.

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