Central Maine Power Co electricity rates in Maine, 2025
Central Maine Power Co’s 537,632 residential customers paid an average of 27.41¢ per kWh in 2025, 1% below the Maine average of 27.69¢. The typical home used 538 kWh a month, for an average bill of $147.
- 27.41¢avg ¢/kWh (2025)+3.97¢ (+16.9%) vs 2024
- $147Avg monthly billMaine: $148
- 538 kWhAvg monthly useMaine: 533 kWh
- 537,632Residential customersFull-service utility
| Sector | Customers | Sales (MWh) | Revenue | ¢/kWh 2025 | ¢/kWh 2024 | Change |
|---|---|---|---|---|---|---|
| Residential | 537,632 | 3,468,170 | $950,478,000 | 27.41¢ | 23.43¢ | +3.97¢ (+16.9%) |
| Commercial | 54,177 | 1,040,137 | $247,126,600 | 23.76¢ | 21.08¢ | +2.68¢ (+12.7%) |
| Industrial | 878 | 93,351 | $20,892,300 | 22.38¢ | 20.36¢ | +2.02¢ (+9.9%) |
| All sectors | 592,687 | 4,601,658 | $1,218,496,900 | 26.48¢ | 22.87¢ | +3.61¢ (+15.8%) |
How Central Maine Power Co compares
- Maine residential average, 2025: 27.69¢ per kWh, 533 kWh a month, $148 average bill. U.S. average: 17.23¢, 874 kWh, $151.
- Among 6 full-service utilities in Maine with at least 1,000 residential customers, Central Maine Power Co ranks 5 of 6 from lowest to highest average price.
- Latest monthly figure: Maine homes paid 32.11¢ per kWh in August 2026 (preliminary), against 28.14¢ in August 2025. Summer months often run higher than the annual average.
- From 2024 to 2025 this average rose 16.9%; the state average rose 14.0%.
- Another 46,830 residential customers buy supply from a competitive supplier and pay Central Maine Power Co only for delivery, averaging 17.11¢ per kWh for that service.
- Central Maine Power Co is an investor-owned utility, a private company whose rates are set by the state utility commission. Balancing authority: ISNE.
Where Central Maine Power Co serves
EIA lists 14 Maine counties in its 2025 service territory: Androscoggin, Cumberland, Franklin, Hancock, Kennebec, Knox, Lincoln, Oxford, Penobscot, Piscataquis, Sagadahoc, Somerset, Waldo, York.
338 ZIP codes are matched to Central Maine Power Co in NREL’s 2024 ZIP file: 03579, 03901, 03902, 03903, 03904, 03905, 03906, 03907, 03908, 03909, 03910, 03911, 04001, 04002, 04003, 04004, 04005, 04007, 04008, 04009, 04010, 04011, 04014, 04015, 04016, 04017, 04019, 04020, 04021, 04022, 04024, 04027, 04028, 04029, 04030, 04032, 04033, 04034, 04037, 04038, 04039, 04040, 04041, 04042, 04043, 04046, 04047, 04048, 04049, 04050, 04051, 04054, 04055, 04056, 04057, 04061, 04062, 04063, 04064, 04066, and 278 more. Utility boundaries do not follow ZIP lines, so a ZIP can have more than one provider.
Maine full-service utilities with similar rates
| Provider | ¢/kWh | Avg bill | Customers |
|---|---|---|---|
| Kennebunk Light & Power Dist | 13.46¢ | $103 | 6,723 |
| Houlton Water Company | 14.16¢ | $109 | 3,907 |
| Town of Madison (ME) | 15.01¢ | $106 | 2,447 |
| Eastern Maine Electric Coop | 19.36¢ | $101 | 10,808 |
| Versant Power | 30.15¢ | $150 | 131,540 |
Sources
- U.S. Energy Information Administration, Annual Electric Power Industry Report, Form EIA-861, 2025 final data (f8612025.zip, file dated October 7, 2026): Sales to Ultimate Customers, Average Monthly Bill and Service Territory tables.
- EIA Form EIA-861, 2024 final data (f8612024.zip, file dated December 4, 2025), for the 2024 comparison.
- EIA Electric Power Monthly, Table 5.6.A (average price by state, August 2026 and August 2025; 2026 values are preliminary), file dated October 22, 2026.
- National Renewable Energy Laboratory via OpenEI, U.S. Electric Utility Companies and Rates: Look-up by Zipcode (2024) (investor-owned and other utilities, files dated November 10, 2025), used only to match ZIP codes to utilities.
Average price = residential revenue ÷ residential kWh sold, as reported to EIA. It includes fixed monthly charges, taxes passed through in revenue and seasonal tiers, averaged over the year. Your own rate depends on your tariff and usage.