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Evergreen Solar Panels

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Evergreen Solar Inc., USA, develops and manufactures solar panels with their patented crystalline silicon technology, which they call String Ribbon. This technology allows them to produce solar cells that require less material than conventionally produced solar cells. Evergreen products are sold through a dealer network.


Evergreen Solar Inc. was formed in 1994. It was a financial venture launched by institutional investors who were experienced in energy and technology fields. The manufacturing base is located in Massachusetts. In April 2006, Evergreen Solar introduced their Spruce line of solar panels. They entered into a joint venture partnership in June 2006 with Q-Cells AG, Thalheim, and Renewable Energy Corporation.

Photovoltaic (PV) Product Lines

Evergreen Solar has two photovoltaic product lines -- the Cedar Line and Spruce Line. Evergreen stopped producing the Cedar Line solar panels in September 2006. The Spruce Line solar panels use technology that produces more energy. Evergreen solar panels are environment-friendly because they do not use any lead in their materials.

Find a Contractor to Install Solar Panels

Our free Find a Contractor tool can help you find qualified pre-screened contractors to install solar panels. Every contractor in our database has been screened for a clean credit and legal history, and has been in business for at least three years.


All Evergreen Solar Panels are supported by a 25-year limited power warranty as well as a two-year workmanship warranty. These warranties only apply to the original consumer who bought the solar panels or subsequent owners of the site where the modules were first installed. Evergreen warrants that they will repair or replace the product or refund the purchase price if:

Contacting Evergreen

Phone: (508) 357-2221


Evergreen Solar, Inc.
138 Bartlett Street
Marlboro, MA 01752-3016