Certification is just not a firm need for EnergySage installers, nevertheless it's remarkably recommended. In case the installer commenced working while in the solar business ahead of NABCEP was fashioned in 2002 and has an extended (and good) history, we should make it possible for them to hitch our Market. https://www.americanarraysolar.com/what-to-expect-during-your-solar-panel-installation-with-american-array-solar/