California Solar Energy Industries Association

CALSEIA is the nation’s oldest state-based solar energy association. Since the 1970s, CALSEIA has advanced the common interests of the California solar industry, helping make California's solar market the most robust in the United States. Comprised of California solar contractors, manufacturers, distributors, developers, utilities, engineers, consultants and educational organizations, CALSEIA represents a diverse membership committed to growing the California solar industry. CALSEIA is a 501 C-6 non-profit organization primarily funded through membership dues and contributions.