Central Maine Power Electric Rates and Average Monthly Bill

Central Maine Power reported 537,632 residential customers on bundled service in 2025, using 538 kWh a month on average at 27.41 cents per kWh. Bundled means the utility supplies the energy and delivers it, so the price covers both. Among the 3 Maine utilities with at least 10,000 bundled residential customers, Central Maine Power ranks 2 from the lowest price.

Another 46,830 residential customers use Central Maine Power for delivery only and buy their energy from a different supplier. EIA reports their delivery revenue at about 17.11 cents per kWh, or $87.30 a month, which does not include the supply price.

Source: U.S. Energy Information Administration, Form EIA-861 (final 2025 data), sales to ultimate customers. Price is revenue divided by sales and includes fixed charges.

EIA lists the counties where Central Maine Power has distribution equipment. That covers 14 counties in Maine. A county can be served by more than one utility, so confirm your address with the utility or your bill.

Not sure who serves your address? Use find my electric company.

For 2025, Central Maine Power reported an average of 177 minutes without power per customer and 1.74 interruptions per customer, with major event days left out. The typical interruption lasted about 102 minutes. For comparison, the median state averaged 127 minutes of outage per customer.

Central Maine Power had about 50 more minutes of outage per customer than the median state. The Maine figure across its utilities was 192 minutes. One interruption lasting 102 minutes and 1.74 interruptions a year per customer add up to the 177 minute total.

Source: U.S. Energy Information Administration, Form EIA-861 (final 2025 data), reliability schedule, measured under IEEE 1366. Utilities define events slightly differently, so compare with care.

• Time-of-use pricing. Central Maine Power reports a residential time-of-use pricing program in its 2025 EIA filing, with about 9,989 residential customers enrolled in dynamic pricing programs of all kinds. Ask the utility which rate schedules you qualify for. How time-of-use rates work.
• Rooftop solar and net metering. EIA shows 16,367 residential net-metered systems on the Central Maine Power grid in 2025, with 138.9 megawatts of capacity. How net metering works.

A private company owned by shareholders. A state commission reviews its costs and sets or approves its rates in formal rate cases. In Maine, that review is done by the Maine Public Utilities Commission.

Central Maine Power is an investor-owned utility based in Maine.

Central Maine Power operates in the ISONE power market. Power markets set wholesale costs, but your retail rate is set by the rules described above.

By residential customers, Central Maine Power ranks 1st of the 6 utilities that report homes in Maine, with about 78.0% of the state's homes. Maine has too few other investor-owned utilities with reported prices to compare Central Maine Power with its type, so the state average of 27.69 cents per kWh is the fairest yardstick. The typical Central Maine Power bill of $147.32 a month is within about $12 a year of the Maine average, so a household here pays close to what a typical household in the state pays. Central Maine Power lists distribution equipment in 14 counties, so check your county and your bill before you assume it serves you. 16,367 of its residential customers use net metering, or 28.0 per 1,000 homes, against 27.4 for Maine as a whole.

Source: U.S. Energy Information Administration, Form EIA-861 (final 2025 data). Peers are other utilities of the same type in Maine with at least 1,000 residential customers and a reported price.

See every one on the electric companies in Maine page.

Kilowatt Atlas is not Central Maine Power and does not take payments, start service or manage accounts. To pay a bill, report an outage or start service, use the website, app or phone number printed on your bill. Be careful with search ads and lookalike sites that offer to pay your bill for a fee.

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• Maine allows retail choice in part or all of the state. See the provider guide.