A consultant from a town government inspects your system and gives acceptance for interconnection. Other certifications it is best to watch out for, none of which are lawfully expected but assure good quality, incorporate the next: NABCEP certification — A certification from your North American Board of Certified Energy Practitioners https://californiasolarcompany.travel.blog/2025/08/23/california-solar-panels-energy-savings-with-expert-contractors/