Evergreen Solar, Inc. is a company that develops, manufactures, and markets String Ribbon solar power products using its proprietary, low-cost silicon wafer technology. The company’s patented wafer manufacturing technology uses significantly less polysilicon than conventional processes, providing reliable and environmentally clean electric power for residential and commercial applications globally. Evergreen Solar was founded in 1994 and operated out of Marlborough, Massachusetts, before shifting production to China. The company filed for Chapter 11 reorganization in 2011 and closed its main American factory, laying off 800 workers.