Location: Taunton, Massachusetts

Watts: 6,840

Monthly Production: 670 kWh

Date: April 2017

The Taunton municipal light department has decent rates for Massachusetts — about 13 cents per kWh. But wouldn’t you rather pay 3 cents? That’s what this homeowner is paying per kWh, locked in for 25 years, thanks to his solar energy system. Let’s see…pay the utility 13 cents…or pay yourself 3 cents…which would you do?

This system, by the way, has 19 panels. In addition to the 17 panels in two orientations on the right, there are two more tucked into the space to the left of the Gambrel roof extension over the front door.