We're celebrating our 25th anniversary leading the way in solar PV, solar thermal installations and cogeneration systems for San Francisco homeowners, commercial and non-profit. We provide the best American-made solar panels and products with our partner SolarWorld and with local companies like solar thermal component manufacturer Heliodyne of Richmond.  We are a California corporation, a licensed California General contractor (B license) and licensed Solar contractor (C-46) CSLB #591549. We've been designing, installing and maintaining solar PV, solar thermal and natural gas cogeneration systems since 1989. Read about our history of providing the pioneering solar systems for our customers »