Location: Lancaster, Massachusetts

Watts: 7,848

Monthly Production: 773 kWh

Date: August 2015

Most people install solar for the savings, understandably, but many people also care about the benefit to the planet. This 24-panel system in Lancaster, MA is offsetting carbon dioxide emissions equivalent to the amount absorbed by 5.2 acres of trees a year! (Don’t worry about the 2nd story doorway drop-off…these photos were taken before the newly built house was 100% completed.)