Certification isn't a agency need for EnergySage installers, nevertheless it's highly advisable. Should the installer started out working inside the solar marketplace prior to NABCEP was formed in 2002 and it has a lengthy (and good) background, we should permit them to join our Marketplace. No condition profits tax penalty: https://www.americanarraysolar.com/how-can-you-live-an-environment-friendly-life/