Location: Leominster, Massachusetts

Watts: 9,690

Monthly Production: 767 kWh

Date: February 2015

Thirty-eight 255-watt panels spread across three roofs at this home — on the house itself, the garage, and a new outbuilding. The customers say:

“The whole operation at New England Clean Energy was extremely helpful and professional. I’m glad we took the time to invest locally and it did pay off.”

(Read their full, indepth review at www.SolarReviews.com.)