Central Maine Power and solar
Central Maine Power is an investor-owned utility serving about 584,462 homes in Maine. Here's what its rates and export rules mean for solar: for a typical customer, solar is worth it.
- Average price (2026 est.)
- 29.4¢0% above Maine average
- Typical bill
- $157535 kWh a month
- Exports credited
- RetailFull retail net metering
- Typical payback
- 8.9 yrs4.9 kW, cash
Export rules for Central Maine Power customers
Full retail net metering, monthly netting.
kWh credit NEB for on-site residential; 12-month credit expiry.
Solar for a typical Central Maine Power home
| System | 4.9 kW (101% of 535 kWh/month) |
|---|---|
| Cost | $17,465 |
| First-year savings | $1,798 |
| Payback | 8.9 years |
| 25-year net | $51,183 |
Uses the utility's average price.
Solar adoption
- Homes with solar (2025)
- 16,367
- Share of customers
- 2.8%
- Residential solar capacity
- 139 MW
- Residential customers
- 584,462
EIA-861, 2025.
Cities served
Questions about Central Maine Power and solar
Does Central Maine Power have net metering?
kWh credit NEB for on-site residential; 12-month credit expiry.
How much does electricity cost with Central Maine Power?
Residential customers paid an average of 27.8¢ per kWh in 2025 (EIA), about 29.4¢ adjusted to 2026. The typical home uses 535 kWh a month, a bill of about $157.
Is solar worth it with Central Maine Power?
For a typical customer, solar is worth it: a 4.9 kW system costing about $17,465 pays back in about 8.9 years, with $51,183 net over 25 years.
How many Central Maine Power customers have solar?
About 16,367 homes had net-metered solar at the end of 2025, roughly 2.8% of residential customers (EIA-861).
Legal name: Central Maine Power Co (EIA ID 3266). Data: EIA-861 2025 and monthly data through 2026, state policy research October 2026.