In California, installers are needed to have either a general contractors license or maybe a C-46 Solar Contractors License. This license addresses installations for photovoltaic systems, solar water and Room heating, and solar pool heating. From time to time even area jurisdictions have their very own requirements. It may be https://solarcompaniesberkeley.blogspot.com/2025/07/what-makes-american-array-solar-best.html