Certification just isn't a firm prerequisite for EnergySage installers, nonetheless it's really encouraged. In the event the installer started off working inside the solar business right before NABCEP was formed in 2002 and it has a lengthy (and good) history, we should still allow for them to hitch our Marketplace. https://sites.google.com/view/california-solar-company/what-should-you-consider-when-hiring-commercial-solar-contractors