Location: Foster, Rhode Island

Watts: 4,480

Monthly Production: 372 kWh

Date: September 2016

This Solarize Foster system has 14 SunPower 320-watt panels and produces enough solar energy to cover 91% of the homeowner’s electric bills. The owners opted for the Renewable Energy Growth payments, one of two state-sponsored solar incentives in Rhode Island, so they have one meter measuring the electricity going out to the grid, and another measuring the electricity coming in.