MontanaLocal --:--Sun now --Daylight --
NorthWestern Energy LLC - (MT)
NorthWestern Energy LLC - (MT) served 333,711 residential customers in Montana in 2025 (59.0% of the state's residential customers), the 1st largest of 14 utilities reporting there. Bundled service; ownership: investor owned; balancing authority NWMT.
The meter, one average month.
Scroll to run 30 days of NorthWestern Energy LLC - (MT)'s average residential use through a five-dial register.
- Used so far
- 707 kWh
- At 14.42¢/kWh
- $102
Price ruler0 to 50¢ per kWh
Where 14.42¢ sits.
NorthWestern Energy LLC - (MT) averaged 14.42¢ per kWh against a Montana residential average of 12.98¢: 11.1% above the state figure. Among the 4 investor owned utilities in Montana with bundled residential sales, it ranks 4th from the lowest price.
2020 and 2025EIA-861
Five years, same meter.
In 2020 the average NorthWestern Energy LLC - (MT) home used 714 kWh a month at 12.16¢ and paid $86.89. In 2025 it used 707 kWh at 14.42¢ and paid $102: the price per kWh is up 18.6%.
| Measure | 2020 | 2025 |
|---|---|---|
| Price, ¢/kWh | 12.16 | 14.42 |
| Use, kWh a month | 714 | 707 |
| Bill, US$ a month | 86.89 | 101.97 |
| Class | Customers | MWh sold | ¢/kWh |
|---|---|---|---|
| Residential | 333,711 | 2,831,009 | 14.42 |
| Commercial | 102,189 | 3,137,164 | 13.41 |
| Industrial | 2,411 | 413,101 | 10.49 |
Who else is on the line
Homes are one class.
Homes took 44.4% of the electricity NorthWestern Energy LLC - (MT) sold in Montana in 2025.
Rooftop solar on its linesnet metering
11,386 roofs.
- Residential net-metered PV
- 11,386installations reported for 2025
- Capacity
- 83.4 MWresidential, net metered
- Per 1,000 homes
- 34.1installations per 1,000 residential customers
Service territoryEIA-861
36 counties.
BeaverheadBig HornBlaineBroadwaterCarbonCascadeChouteauDeer LodgeFergusGallatinGolden ValleyGraniteHillJeffersonJudith BasinLewis and ClarkLibertyMadisonMeagherMineralMissoulaMusselshellParkPhillips
Counties in Montana where NorthWestern Energy LLC - (MT) reported serving customers in 2025 (36 in all; up to 24 listed).
EIA-8612025Utility 12825
The filing, line by line.
| Measure | Value | Unit |
|---|---|---|
| Average price | 14.42 | ¢/kWh |
| Montana average price | 12.98 | ¢/kWh |
| Difference from state average | 11.1 | % |
| Price change over 5 years | 18.6 | % |
| Typical monthly use | 707 | kWh |
| Typical monthly bill | 101.97 | US$ |
| Residential customers | 333,711 | accounts |
| Share of MT residential customers | 59.0 | % |
| Size rank in MT | 1 of 14 | by customers |
| Price rank, investor owned peers | 4 of 4 | 1 = lowest |
Rate plans on fileOpenEI URDB
1 active plans.
- Time-of-use
- 0more than one energy period within a month
- Seasonal only
- 0price changes by month, not by hour
- Median fixed charge
- $4.20US dollars per month
- Median flat energy rate
- 11.36¢cents per kWh, one period and one tier
Active residential plans: not ended, started within the last 5 years, latest version of each plan name. Time-of-use means more than one energy period within a single month; plans whose price changes only by season are counted as seasonal.