Certification is just not a organization necessity for EnergySage installers, but it really's really advised. In case the installer begun Performing in the solar market before NABCEP was shaped in 2002 and has an extended (and beneficial) reputation, we should still make it possible for them to hitch our Market. https://californiasolarinstallation.wordpress.com/2024/09/13/4-tips-to-hire-the-best-commercial-solar-contractors/