Certification just isn't a firm necessity for EnergySage installers, nonetheless it's very encouraged. In case the installer started off Functioning inside the solar field before NABCEP was formed in 2002 and has an extended (and favourable) reputation, we should allow for them to affix our Marketplace. In case you go https://www.houzz.com/hznb/professionals/solar-energy-contractors/infinity-solar-pfvwus-pf~1582649468