Location: Rutland, Massachusetts

Watts: 9,156

Monthly Production: 781 kWh

Date: October 2015

This system in Rutland has 28 SunPower panels and a SolarEdge inverter with optimizers under each panel. The system will make more than $1,600 worth of electricity in the first year. Since electricity prices generally only go up, other than the occasional seasonal dip, the electricity you generate with solar only becomes more valuable as the years go by.