United States › Power plants › Hydroelectric plants › Montana
HYDROELECTRIC PLANTSHolter
Holter is a 54.6 MW operating hydroelectric plant in Cascade County, Montana, operated by NorthWestern Energy (MT Hydro).
Generators
Each generating unit EIA lists at this plant.
| Unit | Technology | Capacity | Status |
|---|---|---|---|
| HOL1 | Conventional Hydroelectric | 15 MW | |
| HOL2 | Conventional Hydroelectric | 15 MW | |
| HOL3 | Conventional Hydroelectric | 15 MW | |
| HOL4 | Conventional Hydroelectric | 9.6 MW |
Plant details
- Operator
- NorthWestern Energy (MT Hydro)
- Location
- Cascade County, Montana
- Balancing authority
- NWMT
- Sector
- Electric Utility
- Capacity
- Operating: 54.6 MW
- First unit online
- Jul 1918
- EIA plant ID
- 2186
Location
46.9915, -112.0047
Nearby power plants
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- Black Eagle Solar, LLCSolar farms · 3.0 MW · 52.1 mi
Source: U.S. Energy Information Administration, Form EIA-860M, September 2026. Planned dates are targets reported by the developer and often change. Report a problem