Location: West Newbury, Massachusetts

Watts: 9,315

Monthly Production: 846 kWh

Date: July 2015

How many $50,000 investments can you make that pay back in 8.6 years? That’s the beauty of this West Newbury, MA solar energy system, which has 27 SunPower panels and produces more than 10,100 kilowatt-hours of solar electricity per year.

(We moved the vent pipe to make more room for solar, as we often do if the customer requests it.)