A Representative from a city authorities inspects your system and delivers acceptance for interconnection. Other certifications you need to watch out for, none of which are legally demanded but ensure high quality, contain the next: NABCEP certification — A certification from your North American Board of Certified Electrical power Practitioners https://solarinstallersfresno.business.blog/2025/11/19/top-solar-company-in-livermore-clean-energy-made-easy/