In California, installers are necessary to have possibly a basic contractors license or a C-46 Solar Contractors License. This license handles installations for photovoltaic systems, solar drinking water and Place heating, and solar pool heating. You may Regulate your Powerwalls from the mobile phone through the Tesla solar monitoring application https://californiasolarcompany.fashion.blog/2025/06/19/leading-californias-solar-evolution-with-innovation-and-integrity/