Maine · Investor Owned · serves 338 ZIP codes
Central Maine Power Co rate plans
2 residential plans are currently open to new customers. Some charge different prices depending on the hour — which is where most of the savings hide.
Looking for when the expensive hours are? Central Maine Power’s peak hours, plan by plan →
What does Central Maine Power cost at a normal month’s usage?
A household using 1,000 kWh a month pays about $1,919 a year on the cheapest of the 2 plans we can price here — A Residential Standard Offer Service — and $2,135 on the priciest. Same house, same wires.
| A month of | Cheapest, a year | On which plan | Priciest |
|---|---|---|---|
| 500 kWh | $1,100 | A Residential Standard Offer Service | $1,228 |
| 1,000 kWh | $1,919 | A Residential Standard Offer Service | $2,135 |
| 2,000 kWh | $3,557 | A Residential Standard Offer Service | $3,949 |
The same plan is cheapest at every level of use here, so the answer does not turn on how much you use. Estimates from the filed tariff, priced hour by hour on a household with central air — not a quote.
How much does the plan you pick actually matter here?
Run the same three-bedroom house with central air through every plan Central Maine Power Co files, and the bill lands anywhere between $1,571 and $1,749 a year. That $178 spread is not a difference in electricity — it is the same kilowatt-hours, from the same wires, priced under different rules. Nobody sends you a letter when you are on the wrong side of it.
1 of these 2 plans price by the hour. Those are the ones where moving laundry, dishes, or car charging into the cheap window changes the bill; on the rest, the clock is irrelevant and only the total matters. Which camp you belong in is the first question worth settling, because it decides whether shifting your day is worth anything at all.
Watch the fixed charges too. Across these plans they run from $321 to $363 a year before a single kilowatt-hour is counted. For a small household that difference alone can outweigh the per-kWh price, which is why comparing cents per kilowatt-hour on its own quietly misleads.
How Central Maine Power compares with the rest of the country
Central Maine Power is the only Maine utility we can price, so there is no in-state comparison to make. Against the whole country there is: run the same three-bedroom house with central air through its default plan at each of the 127 utilities we cover, and Central Maine Power lands 66th cheapest — in the dearer half — at about $1,571 a year against a national median of $1,566. The range runs from $905 at Entergy Louisiana (Louisiana) to $4,726 at San Diego Gas & Electric (California).
The other two households sit in the same place: a small apartment pays about $945 here against a national median of $901, and the same house with an electric car charging overnight about $2,069 against $2,067. Effective rate, fixed charge included, is 16.6¢ per kilowatt-hour for the family home.
Inside Central Maine Power itself, the gap between its cheapest and dearest plan for that house is $178 a year. That is the part of the bill a customer here can act on; the rest is set by which utility the address falls under.
Which plan would cost you least?
No bill upload, no sign-up. Tell us roughly what a month costs you and what runs on electricity — we price every plan against the same household and show you the gap.
That adds up to 10,289 kWh a year. Compare it to the total on your bill and adjust until it’s close.
Same usage, different plan
$201a year
That is the gap between the cheapest plan you could be on — A Residential Standard Offer Service — and the priciest. Not by using less power. By being billed differently for the same power.
| Plan | Per year | Vs best |
|---|---|---|
| A Residential Standard Offer ServiceOne rate, every hour of the year. | $1,684 | — |
| A-TOU Residential Service - Time-of-UsePeak hits 5pm–9pm on weekdays, all year. | $1,885 | +$201 |
An estimate, not a quote. Supply charges move month to month, and your real usage pattern is not exactly this one. What it does show reliably is the gap between plans — both are priced off the same assumptions.
Before you switch anything
- What is a time-of-use electricity rate?
The same kilowatt-hour, priced differently depending on when you use it.
- Should you switch to a time-of-use electricity plan?
A wide peak-to-off-peak gap is a lever, not a saving. Levers need something to move.
- How to compare electricity plans without getting it wrong
Six things that break a comparison, and the order to check them in.
Every plan, in detail
Hour-by-hour schedules, tier thresholds, and the tariff each one comes from.