Central Maine Power electric rates
Updated October 7, 2026 · Source: EIA Form 861 (2024)
Investor-owned utility serving 577,955 homes in Maine.
Your rate
Maine is a retail-choice state: this utility's rate case sets the delivery part of your bill. The supply part comes from your chosen supplier or the default service rate.
Estimate your bill
It's on your bill, usually near the top. Starting at 557 kWh, the average for Central Maine Power homes.
This is an estimate. Uses the EIA average rate with a nominal $12 fixed charge; real tariffs have tiers, time-of-use pricing and riders. Your bill also includes taxes and fuel adjustments that change month to month.
Rate cases
No rate case on file for Central Maine Power right now. We check regulator dockets weekly; last check October 7, 2026. Know of one?
Rate history
Central Maine Power's average rate is up 45% since 2020, versus +28% for the U.S. average.
Average residential revenue per kWh, EIA-861. Includes delivery and, where the utility sells it, supply.
Rebates for heat pumps, batteries and EV chargers
We haven't found utility-level rebates for Central Maine Power yet. Check Maine programs or read what's left after the federal credits ended.
About Central Maine Power
- Legal name
- Central Maine Power Co (Avangrid)
- Ownership
- Investor Owned
- Homes served
- 577,955 residential customers (2024)
- Grid operator
- ISNE
- Retail choice
- Yes — you can pick a supplier for the energy portion
- Data
- EIA-861 2024, released October 7, 2026; rate cases checked October 7, 2026
Other utilities in Maine
- Versant Power 27.5¢
- Eastern Maine Electric Coop 17.06¢