Certification is just not a firm need for EnergySage installers, however it's very suggested. When the installer started off Operating while in the solar field just before NABCEP was shaped in 2002 and it has a protracted (and positive) track record, we may still let them to affix our Marketplace. https://teslabatteryinstaller.blogspot.com/2024/08/4-qualities-of-leading-solar-panel.html