Solar cost & payback in Maine
Short answer
In Maine, a home with a $150/month electric bill needs about a 6.7 kW solar system — roughly $14,079 after the 30% federal tax credit, saving about $1,801/year and paying back in ~7.8 years.
System size
6.7 kW
Cost after 30% credit
$14,079
Payback
7.8 yrs
20-yr net savings
$31,927
Solar in Maine
Maine averages about 4 peak sun hours a day and pays roughly 23¢/kWh. The figures above assume a $150/month bill and ~$3/watt installed, with the 30% federal tax credit. A bigger bill needs a bigger system; shading, roof orientation, and net-metering rules change the payback.
Your bill & roof
Estimate your solar savingsOther states
Frequently asked questions
How much do solar panels cost in Maine?
For a $150/month bill, about a 6.7 kW system — roughly $20,112 before incentives, or $14,079 after the 30% federal tax credit. Larger bills need bigger, pricier systems.
Is solar worth it in Maine?
Maine gets about 4 peak sun hours a day and pays ~23¢/kWh. A typical system pays back in ~7.8 years and saves about $31,927 net over 20 years — a strong case.
What is the solar tax credit in Maine?
The 30% federal Residential Clean Energy Credit applies everywhere, including Maine — about $6,034 on the example system. Maine may add its own state incentives on top; check current programs.