US Energy Price Monitorby KadoaUpdated weeklyStar on GitHub

NewInsight: Investor-owned utilities charge 23% more for power

Maine

Central Maine Power electricity rates

What homes pay Central Maine Power for electricity, from EIA.

Investor-owned utility, 556,199 homes in Maine. EIA lists it as Central Maine Power Co.

Headlines

Average price
29.2¢ a kWh
Up 9.5% on a year ago
Average bill
$157 a month
Up 8.9% on a year ago
Average use
537 kWh
A month. Maine 528 kWh
Price rank in Maine
2 of 3
1 is the most expensive

Over the 12 months to August 2026, Central Maine Power homes paid 29.2¢ a kWh, against 29.6¢ across Maine.

Central Maine Power vs Maine

Central Maine PowerMaine
Average price, 12 months to August 202629.2¢29.6¢
Price in August 202632.3¢32.1¢
Average monthly bill, 12 months$157$156
Bill in August 2026$157$157
Average monthly use537 kWh528 kWh
Price change, past year+9.5%+9.7%
Price change since 2019+68%+65%

Electricity price

Average residential price a kilowatt-hour, by month.

Up to and including August 2026

Source: EIA-861M monthly utility survey. Revenue over kilowatt-hours sold, including fixed charges.

Average monthly bill

What an average home pays a month.

Up to and including August 2026

Source: EIA-861M monthly utility survey.