Net Metering in Maine — 2026 Rules & Credits
Updated 2026-07-07 · MySunROI Research
Net metering rules in Maine determine how much you get paid for excess solar sent to the grid. This directly affects payback (7.6 years avg) and whether a battery makes sense.
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How net metering works
When panels produce more than you use, surplus energy flows to the grid. Your utility credits your account — at retail, avoided-cost, or buyback rates depending on policy.
Solar installation costs in Maine reflect local labor rates, permit fees, and utility interconnection rules. A typical 6 kW system runs $13,480–$23,870 before the 30% federal tax credit, with net cost around $9,440–$16,710.
- Daytime surplus → bill credits
- Evening usage → draw from credits
- Annual true-up may settle remaining balance
Maine net metering policy
Maine homeowners may qualify for the 30% federal ITC plus any active state or utility rebates. Verify current programs at dsireusa.org before signing a contract.
Maine install costs average $2.89/W with estimated 7.6-year payback on a 6 kW system — above US national averages.
Net metering vs battery storage
If export credits are low in Maine, batteries store solar for evening use. Add-on cost: $9,450 before ITC.
Maine quick stats
- 6 kW after ITC
- $12,120
- Payback
- 7.6 years
- Electric rate
- 21.5¢/kWh
- Annual savings
- $1,600
Frequently Asked Questions
Does Maine have full retail net metering?
Maine homeowners may qualify for the 30% federal ITC plus any active state or utility rebates. Verify current programs at dsireusa.org before signing a contract.…
Can I go off-grid?
Grid-tied systems with net metering are standard. Off-grid requires batteries and is rarely cost-effective for suburban homes.
Related pages
How We Calculate Solar Costs
MySunROI estimates combine NREL residential PV installed-price benchmarks, EIA state electricity rates, and regional labor modifiers — updated 2026-07-07.
Estimates only — not tax or financial advice. Estimates based on NREL PV cost benchmarks, EIA electricity rates, and 2026 installer pricing surveys.