In California, installers are needed to have either a basic contractors license or maybe a C-forty six Solar Contractors License. This license handles installations for photovoltaic systems, solar h2o and space heating, and solar pool heating. We may get referral payment from a few of the businesses on our website. https://solarcompaniesfresno.art.blog/2025/07/20/why-homeowners-across-california-choose-american-array-solar-installers/