Full service
27.41¢
per kWh, 2025 average revenue
$147.32 / month at 538 kWh
Price +17.0% from 2024
Investor Owned · 584,462 residential customers · Maine
Why is my Central Maine Power electric bill so high?
EIA respondent: Central Maine Power Co. Reviewed October 14, 2026.
In 2025, Central Maine Power reported 537,632 residential full service customers under the EIA name Central Maine Power Co. Average revenue was 27.41¢ per kWh. The average monthly bill in that filing was $147.32 for 538 kWh.
27.41¢ is about even with Maine's 2025 statewide residential average of 27.69¢. In July 2026 the state residential price was 32.41¢, versus 27.98¢ a year earlier (+15.8%). The utility number is a 2025 annual average. The state number is one later month. They answer different questions.
From 2024 to 2025, the average monthly bill for full service changed +12.8%. Average use changed −3.5% and average price changed +17.0%. Holding the 2024 price fixed, the usage change accounts for −$4.60 a month. The price change, applied to 2025 usage, accounts for $21.37.
EIA Form 861, 2025 final · Reviewed October 14, 2026
EIA Electric Power Monthly, Table 5.6.A · Reviewed October 14, 2026
Delivery only
17.11¢
per kWh, 2025 average revenue
$87.30 / month at 510 kWh
Price +32.5% from 2024
The rate on the record
Investor-owned base rates are usually set in a state docket. Riders can change outside a full rate case. Average revenue per kilowatt-hour is total residential revenue divided by residential sales. It is not a tariff schedule.
| Service | Customers | Price | Monthly use | Monthly bill | Vs 2024 price |
|---|---|---|---|---|---|
| Full service | 537,632 | 27.41¢ | 538 kWh | $147.32 | +17.0% |
| Delivery only | 46,830 | 17.11¢ | 510 kWh | $87.30 | +32.5% |
EIA-861 sales to ultimate customers, 2025 final, compared with 2024 · Reviewed October 14, 2026
By state
| State | Service | Customers | Price | Monthly bill |
|---|---|---|---|---|
| ME | Full service | 537,632 | 27.41¢ | $147.32 |
| ME | Delivery only | 46,830 | 17.11¢ | $87.30 |
Audit the full service average
Revenue 950,478 thousand dollars. Sales 3,468,170 MWh. Customers 537,632. Cents per kWh = revenue ÷ megawatt-hours × 100. Monthly bill = revenue × 1,000 ÷ customers ÷ 12.
Audit the delivery only average
Revenue 49,061 thousand dollars. Sales 286,661 MWh. Customers 46,830. Cents per kWh = revenue ÷ megawatt-hours × 100. Monthly bill = revenue × 1,000 ÷ customers ÷ 12.
Why a Central Maine Power bill moved
Usage and price pulled in opposite directions
Hold a Central Maine Power household to the filing average and the monthly full service bill changed +12.8% between those two EIA years. Holding the 2024 price fixed, the usage change of −3.5% is worth −$4.60 a month. The price change of +17.0%, from 23.43¢ to 27.41¢, is worth $21.37 on 2025 usage.
Near the Maine average
27.41¢ per kWh is about even with Maine's 2025 residential average of 27.69¢. July 2026 in the state was 32.41¢, versus 27.98¢ a year earlier (+15.8%). The utility figure is a full year of average revenue. The state figure is one later month. A household that uses more than 538 kWh will not land on $147.32.
One full-service average
537,632 residential customers were on Central Maine Power full service in 2025, at 27.41¢ per kWh. That average folds in the customer charge and whatever riders the utility booked as residential revenue. It is not the last block on a tiered tariff.
Season
Central Maine Power customers average 538 kWh a month in the 2025 filing. Maine households statewide averaged 533 kWh. Electric heat, a heat pump, or a cold snap sits well above a 12-month average, which is why a January bill and a May bill are not a rate case.
Time-of-use is already on the EIA schedule
EIA's 2025 dynamic-pricing file shows residential time-of-use activity at Central Maine Power, with 9,989 residential customers enrolled in dynamic pricing. The expensive window is in the tariff, not in that enrollment count. Shifting a dishwasher or an EV charger only helps if you are actually on that schedule.
EIA-861 2025 and 2024 residential sales · Reviewed October 14, 2026
Rate cases and hikes
Needs verification No rate case for Central Maine Power has been reviewed for this page. Orders and pending dockets are public at Maine Public Utilities Commission. Investor-owned base rates are usually set in a public docket. Municipal and cooperative rates may be set by a city or a co-op board instead. Which body sets this utility's rates needs verification.
Maine Public Utilities Commission · Reviewed October 14, 2026
Assistance
LIHEAP is the federal bill program, and the state contact list is the place to start. A Central Maine Power income discount, medical baseline, or budget-billing rule was not retrieved from Maine Public Utilities Commission. That offer needs verification.
LIHEAP program · State and territory contacts · Central Maine Power site
The company homepage is linked for navigation. Program rules on that site were not reviewed. Needs verification.
LIHEAP · Reviewed October 14, 2026
How to lower the bill
- Read the kilowatt-hours against this filing's average of 538 kWh a month. If your use is the thing that moved, the dollar total can rise on an unchanged rate.
- On the statement, separate the base energy charge from fuel or rider lines. A rider can move the total in a month when no new base-rate order exists.
- In Maine, electric resistance heat dominates a winter bill. A heat-pump rate, where one is actually on the tariff, prices that usage differently from ordinary residential service. Confirm you are enrolled before you count on it.
- Start with LIHEAP for Maine (https://www.acf.hhs.gov/ocs/map/liheap-map-state-and-territory-contact-listing). A Central Maine Power discount beyond that program needs verification.
- 9,989 residential customers were already on a dynamic price in the 2025 EIA file. If you are one of them, the window on the tariff is the lever. If you are not, calling the utility to discuss the schedule is the first step, not shifting load you are not being charged extra for.
- If the read is marked estimated, the next actual read can true the account up or down. The tariff rule for that true-up needs verification.
Full service at the 2025 average price
| Monthly use | Estimated bill |
|---|---|
| 500 kWh | $137.05 |
| 750 kWh | $205.58 |
| 1,000 kWh | $274.10 |
| 1,500 kWh | $411.15 |
| 2,000 kWh | $548.20 |
Usage times the average price. At very low use, a real bill is often higher because a fixed customer charge does not shrink. The tariff needs verification.
Delivery only at the 2025 average price
| Monthly use | Estimated bill |
|---|---|
| 500 kWh | $85.55 |
| 750 kWh | $128.33 |
| 1,000 kWh | $171.10 |
| 1,500 kWh | $256.65 |
| 2,000 kWh | $342.20 |
Usage times the average price. At very low use, a real bill is often higher because a fixed customer charge does not shrink. The tariff needs verification.
Questions people ask
Why is my Central Maine Power electric bill so high?
In 2025, Central Maine Power reported 537,632 residential full service customers under the EIA name Central Maine Power Co. Average revenue was 27.41¢ per kWh. The average monthly bill in that filing was $147.32 for 538 kWh. 27.41¢ is about even with Maine's 2025 statewide residential average of 27.69¢. In July 2026 the state residential price was 32.41¢, versus 27.98¢ a year earlier (+15.8%). The utility number is a 2025 annual average. The state number is one later month. They answer different questions. From 2024 to 2025, the average monthly bill for full service changed +12.8%. Average use changed −3.5% and average price changed +17.0%. Holding the 2024 price fixed, the usage change accounts for −$4.60 a month. The price change, applied to 2025 usage, accounts for $21.37.
What was Central Maine Power's average residential rate?
Using 2025 EIA-861 revenue and sales, the full service average was 27.41¢ per kWh. Average use was 538 kWh a month and the average bill was $147.32. This folds in whatever customer charges and riders the utility reported. It is not the marginal rate on your tariff.
Did Central Maine Power raise rates?
The full service average price changed +17.0% from 2024 to 2025, from 23.43¢ to 27.41¢. That is average revenue per kilowatt-hour, not a commission order. No 2025–2026 order for this utility was retrieved for this page. A separate rider can still move a single month.
What bill assistance can Central Maine Power customers ask about?
LIHEAP is the federal program for home energy bills (https://www.acf.hhs.gov/ocs/programs/liheap). Central Maine Power may also offer an income-qualified discount, budget billing, or a medical baseline. The current offer, income cutoff, and how to apply need verification on the utility site and with the state LIHEAP office and Maine Public Utilities Commission.
Are data centers why this bill went up?
Large computing load is raising U.S. electricity demand, and regulators can later recover new generation and wires costs from customers. EIA has not published a dollar line that isolates data centers on this utility's residential bill. That pass-through needs verification.