Certification isn't really a firm necessity for EnergySage installers, but it really's remarkably advisable. In case the installer commenced Functioning inside the solar business prior to NABCEP was formed in 2002 and has a lengthy (and optimistic) reputation, we may still allow for them to join our Market. Sure, California https://www.americanarraysolar.com/what-should-you-consider-when-hiring-commercial-solar-contractors/