Central Maine Power Co: average rate and electric bill (2025)
Central Maine Power Co (investor-owned utility, Maine) served 537,632 homes in 2025. The average customer used 538 kWh a month and paid $147, an average price of 27.4¢ per kWh including fixed charges, riders and taxes. That is 1% below the Maine average of 27.7¢.
What a bill costs at Central Maine Power Co's average price
| Monthly usage | Estimated bill |
|---|---|
| 500 kWh | $137 |
| 1,000 kWh | $274 |
| 1,500 kWh | $411 |
The average price spreads fixed monthly charges over all kWh. At low usage your price per kWh is higher, at high usage lower. Your current tariff can differ from the 2025 average, especially after a rate case.
Calculate your bill · Heat pump vs furnace with this rate
Delivery-only customers
46,830 customers of Central Maine Power Co bought their electricity supply from another provider and paid Central Maine Power Co only for delivery: an average of 17.1¢/kWh. Their total price is that delivery charge plus their supplier's energy price (Maine average for supplier energy: 14.9¢/kWh).
Compare with other utilities in Maine
| Name | ¢/kWh | Avg. bill |
|---|---|---|
| Central Maine Power Co | 27.4 | $147 |
| Versant Power | 30.1 | $150 |
Source: U.S. Energy Information Administration, Form EIA-861 annual data 2025 (released October 2026), utility ID 3266. Average price = residential revenue ÷ residential kWh sold; average bill = revenue ÷ customers ÷ 12.