Solar Panel Cost in Maine
Average costs, savings estimates, and incentives for Maine homeowners — plus free installer quotes.
Solar in Maine: Overview
Maine homeowners who go solar can expect to pay around $26,000 for a typical 8.7 kW system before incentives. Note: the 30% federal residential solar tax credit expired December 31, 2025. State and local incentives may still reduce your net cost.
With average annual electricity savings of $1,300, the typical payback period in Maine is 14 years. Over 25 years, that represents a return on investment of approximately $14,300.
Maine's sun score of 55/100 reflects the region's solar irradiance. The state also offers Efficiency Maine rebates, which can further reduce your upfront costs.
Solar Incentives in Maine
Expired December 31, 2025 — no longer available for new residential installs
State-specific program for Maine residents
Many states exempt solar from property tax assessments
Sell excess power back to the grid at retail rates
Frequently Asked Questions — Solar in Maine
How much do solar panels cost in Maine?
The average solar installation in Maine costs approximately $26,000 before incentives. Note: the 30% federal residential solar tax credit expired December 31, 2025. State and local incentives may still apply in your area. Prices vary by system size, installer, and equipment quality.
How much can I save with solar in Maine?
Maine homeowners save an average of $1,300 per year on electricity with solar. Over 25 years, that's a potential return of $14,300 after accounting for your net system cost.
What solar incentives are available in Maine?
Maine offers Efficiency Maine rebates. Note: the federal 30% residential ITC expired December 31, 2025. Check with your utility company for additional rebates and state programs.
How long is the solar payback period in Maine?
Based on average costs and savings, the typical payback period in Maine is approximately 14 years. After payback, your solar panels continue generating free electricity for 15–20+ more years.
Is solar worth it in Maine?
With a sun score of 55/100 and average annual savings of $1,300, solar is a good investment in Maine. The Efficiency Maine rebates further improves the economics.