1st, all solar installers must maintain a legitimate and Lively license in the Contractors Condition License Board (CSLB). They can hold any of the next being Qualified for solar installations in California: a solar contractor license, an electrical contractor license or even a basic making contractor license. Installation good quality: https://www.americanarraysolar.com/what-factors-to-remember-before-installing-solar-system-in-your-home/