⚡ US Energy Price Monitorby KadoaUpdated weeklyStar on GitHub

Montana

NorthWestern Energy electricity rates

What homes pay NorthWestern Energy for electricity, from EIA.

Investor-owned utility, 337,688 homes in Montana. EIA lists it as NorthWestern Energy LLC - (MT).

Headlines

Average price
15.7¢ a kWh
Up 13% on a year ago
Average bill
$108 a month
Up 8.3% on a year ago
Average use
688 kWh
A month. Montana 829 kWh
Price rank in Montana
1 of 6
1 is the most expensive

Over the 12 months to July 2026, NorthWestern Energy homes paid 15.7¢ a kWh, against 13.8¢ across Montana.

NorthWestern Energy vs Montana

NorthWestern EnergyMontana
Average price, 12 months to July 202615.7¢13.8¢
Price in July 202616.3¢15.0¢
Average monthly bill, 12 months$108$115
Bill in July 2026$138$133
Average monthly use688 kWh829 kWh
Price change, past year+13%+9.5%
Price change since 2019+31%+24%

Electricity price

Average residential price a kilowatt-hour, by month.

Up to and including July 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 July 2026

Source: EIA-861M monthly utility survey.