Maine · Investor Owned
Central Maine Power Co
27.41¢ per kWh, bundled, EIA-861 2025. Average bill $147.32 at 537.6 kWh a month, across 537,632 customers on that row.
Maine averaged 27.69¢/kWh and $147.67 a month. The United States averaged 17.23¢/kWh and $150.68. State and national figures come from EIA's Average Bill file.
Revenue divided by sales, EIA-861 Sales to Ultimate Customers, 2025, released October 7, 2026. Texas wires utilities come from the Delivery Companies file. The price and bill use bundled service. Customer count: 537,632, the largest residential count across service types.
Estimate a bill
The figure below is this utility's 2025 EIA residential average.
2025 EIA average
$274.10
27.41¢/kWh × 1,000 kWh. Bundled residential average, EIA-861 2025. The customer charge is already folded into this average, so it stands beside a tariff total rather than being added to it.
Other service rows
Delivery and bundled prices cover different charges, so they are listed separately.
| Row | ¢/kWh | Bill | kWh | Customers |
|---|---|---|---|---|
| Delivery only | 17.11¢ | $87.30 | 510.1 | 46,830 |
Annual history
| Year | ¢/kWh | Avg. bill | Avg. kWh | Customers |
|---|---|---|---|---|
| 2015 | 14.61¢ | $80.86 | 553.4 | 422,530 |
| 2016 | 14.62¢ | $80.64 | 551.5 | 434,783 |
| 2017 | 15.08¢ | $83.51 | 553.6 | 454,387 |
| 2018 | 16.16¢ | $94.15 | 582.6 | 468,410 |
| 2019 | 17.32¢ | $98.42 | 568.2 | 484,082 |
| 2020 | 16.24¢ | $94.42 | 581.3 | 495,573 |
| 2021 | 16.46¢ | $98.37 | 597.6 | 503,190 |
| 2022 | 22.37¢ | $132.62 | 592.8 | 512,210 |
| 2023 | 27.45¢ | $155.25 | 565.5 | 513,418 |
| 2024 | 23.43¢ | $130.57 | 557.2 | 519,295 |
| 2025 | 27.41¢ | $147.32 | 537.6 | 537,632 |
EIA-861, 2015–2025, using the same service type as the 2025 figure. A blank year means that service was not in the file.
Counties
Androscoggin, Cumberland, Franklin, Hancock, Kennebec, Knox, Lincoln, Oxford, Penobscot, Piscataquis, Sagadahoc, Somerset, Waldo, York.
EIA-861 Service Territory, 2025. A listed county is the county EIA recorded. It does not mean every address in the county is served. Open this utility in the bill calculator · Rate history tool