The new EC-120 is the latest in Evergreen Solar's Cedar Line(TM) of photovoltaic panels. With the same physical dimensions as the Company's current 110-watt and 115-watt panels, the new product delivers increased power from the same area.

MARLBORO, Mass.--(BUSINESS WIRE)--Jan. 5, 2006--Evergreen Solar, Inc. (Nasdaq: ESLR), a manufacturer of solar power products with its proprietary, low-cost String Ribbon(TM) wafer technology, today introduced a 120-watt solar panel.

The new EC-120 is the latest in Evergreen Solar's Cedar Line(TM) of photovoltaic panels. With the same physical dimensions as the Company's current 110-watt and 115-watt panels, the new product delivers increased power from the same area. Through its patented String Ribbon technology, Evergreen Solar produces its panels using significantly less silicon than conventional production methods.

"This new Cedar Line model is our latest in a series of technology advances," said Dr. Terry Bailey, Evergreen Solar Senior Vice President, Marketing and Sales. "Our EC-120 panel reduces installation costs for end users, making solar power more cost-competitive with conventional retail electricity."

As announced in November 2005, Evergreen Solar tests all Cedar Line panels to a stringent -2% peak power rating at Standard Test Conditions, which ranks among the industry's best. All Cedar panels have the following safety and quality certifications: IEC 61215, UL Class C, TUV Safety Class II and CE.

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) and Cedar Line(TM) 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 the Company's expectations regarding product performance and cost and technological competitiveness. 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 market for solar power products is emerging and rapidly developing and is heavily influenced by government regulations and policies over which the Company has little control; the continuing improvement of the Company's technology and manufacturing cost may take longer or cost more than projected; and technological changes in the solar power industry could render the Company's solar power products uncompetitive or obsolete. In addition to the foregoing factors, the risk factors identified in the Company's filings with the Securities and Exchange Commission - including the Company's Annual Report on Form 10-K filed with the SEC on March 10, 2005 and Quarterly Report on Form 10-Q for the quarter ended October 31, 2005, filed on November 10, 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.

CONTACT: Evergreen Solar, Inc.
Alan King, 508-357-2221 X7706
Sales Manager, The Americas
sales@evergreensolar.com
or
Media:
RDW Group, Inc.
Dave McDermitt, 617-235-5812
Vice President
dmcdermitt@rdwgroup.com

SOURCE: Evergreen Solar, Inc.