Maine Solar Incentives & Tax Credits
Every solar incentive available to Maine homeowners in 2026.
⚠️
Federal Tax Credit — Expired for Purchases
The 30% federal Residential Clean Energy Credit (Section 25D) expired on December 31, 2025. Homeowners who buy a system with cash or a loan in 2026 can no longer claim it — a $20,443 system that once carried a $6,133 credit now has none.
- ✅ Solar leases and PPAs can still capture a federal credit through 2027 — the installer claims it and lowers your monthly payment
- ✅ State incentives and net metering below still apply to purchased systems
- ✕ No federal credit for cash or financed purchases placed in service after Dec 31, 2025
$2,000
Maine State Incentive
Maine offers a solar rebate program up to $2,000.
Net Metering in Maine
Maine has Full Retail net metering. Your top utility, Central Maine Power, credits you for excess solar power fed to the grid.
Policy Type
Full Retail
Electricity Rate
$0.198/kWh
Top Utility
Central Maine Power
Utility Net Metering Policies in Maine
| Utility | Rate/kWh | Net Metering | Capacity Limit |
|---|---|---|---|
| Central Maine Power | $0.198 | Full Retail | No overall limit |
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