Maine Solar Incentives, Tax Credits & Rebates 2024
Last updated: 2026-01Incentive Score
Total Savings Estimate
A typical 8kW system in Maine costs $260,040. After the 30% federal tax credit: $182,028. Estimated annual savings: $1,500.
Federal Investment Tax Credit (ITC)
Federal Solar Investment Tax Credit (ITC)
Tax Credit30% of total system cost
The federal ITC allows you to deduct 30% of the cost of installing a solar energy system from your federal taxes. This applies to both residential and commercial systems with no cap on value.
Eligibility
Available to homeowners who own their solar system (purchased, not leased). Must have sufficient tax liability.
Expiration / Phase-Down
30% through 2032, steps down to 26% in 2033 and 22% in 2034
Maine State Incentives
Net Energy Billing
Net MeteringRetail rate
Net energy billing at retail rate with strong community solar program.
Tax Exemptions
property tax Exemption
Solar installations are exempt from property tax assessment increases.
sales tax Exemption
No sales tax exemption for solar equipment.
Highlights & Drawbacks
Highlights
- ✓Federal 30% ITC available
Drawbacks
Source: DSIRE (Database of State Incentives for Renewables & Efficiency), U.S. Department of Energy, state energy offices. Data reflects programs available as of 2026-01.