Signet Solar was established in 2006 in Menlo Park, California. They produce photovoltaic modules, and have manufacturing plants in India and Germany. The modules are made using thin film silicon technology on large area (5.7 m2 (61 sq ft)) glass substrates, referred to as Gen 8.5.
In December, plans were announced to begin construction of a plant in Belen, New Mexico, with an initial capacity of 65 MWp/year when it is completed in 2010, and an eventual capacity of 300 MWp/year. The plant is located in a 6,000 acres (2,400 ha) master planned industrial and residential community, called Rancho Cielo, and is expected to provide the panels for a 700 acres (280 ha), 600 MW solar farm, to provide the majority of the power for the community.