Solar power in Maine

Maine and Vermont are tied for the second highest rooftop solar potential in the country, only behind the state of California.

[1] A 2020 estimate suggests that a typical 5.6 kilowatt (kW) residential system will pay for itself in 6-7 years and generate a profit of $45,000 over the rest of its 25-year life from the tax credits and utility savings.

In early 2017, the Maine Public Utilities Commission (PUC) made a decision to phase out solar credits over 15 years.

The decision was the result of the commission effort to find a middle ground between solar supporters and opponents of net metering.

In 2011 Maine's largest solar array, 41 kW, was installed on the roof of a new, LEED Platinum grocery store in Augusta.