In California, installers are necessary to have either a general contractors license or even a C-46 Solar Contractors License. This license covers installations for photovoltaic systems, solar h2o and Place heating, and solar pool heating. Sunrun is amongst the major solar companies in the U.S., serving above 1 million residential https://solarcompanyinbakersfield.blogspot.com/2025/09/californias-premier-solar-power-company.html