Norwich Solarâ„¢ does solar installations for educational, municipal, and commercial facilities in Northern New England. Commercial photovoltaic (PV) systems range from 30kW to 1MW+. The Norwich Solar team of clean energy experts has installed over 4.5 megawatts of renewable solar photovoltaic (PV) systems for commercial and institutional clients in Vermont and New Hampshire. As costs for commercial solar continue to decrease and tax credits and the other incentives remain stable, large power users are finding renewable energy to be competitive with, or less expensive than, conventional sources of power.