California Solar Energy Industries Association supports the widespread adoption of solar thermal and photovoltaic systems by educating consumers, supporting solar legislation and conducting business in a professional and ethical manner.

Solar Domestic Water System	Commercial Photovoltaic System	Residential Solar Photovoltaic System

Download CALSEIA Membership Application

CAL SEIA members are listed on the Find an Expert Page.Companies who are not currently members of CAL SEIA are encouraged to join.