Owner profile
NorthWestern Energy (MT Hydro)
NorthWestern Energy (MT Hydro) owns or operates 11 generating facilities commissioned between 1908 and 2021, with a combined nameplate capacity of 464.7 MW. The largest share of capacity is hydroelectric (100%), located in Montana.
Ownership reflects the utility or operator reported to EIA (Form EIA-860); equity ownership of individual facilities may differ.
11
Plants
464.7 MW
Total capacity
1
States
98.1 MW
Largest: Thompson Falls
Capacity mix
Hydroelectric 100.0%
Operating plants
| Plant | Fuel | Capacity |
|---|---|---|
| Thompson Falls | Hydroelectric | 98.1 MW |
| Morony | Hydroelectric | 63 MW |
| Cochrane | Hydroelectric | 60.4 MW |
| Rainbow (MT) | Hydroelectric | 59 MW |
| Ryan | Hydroelectric | 55.2 MW |
| Holter | Hydroelectric | 54.6 MW |
| Black Eagle | Hydroelectric | 26.7 MW |
| Madison Dam | Hydroelectric | 16.4 MW |
| Hauser | Hydroelectric | 16.3 MW |
| Mystic | Hydroelectric | 12 MW |
Retired plants (1)
| Plant | Fuel | Capacity |
|---|---|---|
| Milltownretired 2007 | Hydroelectric | 3 MW |