Madison Dam
Ennis, Montana
- Capacity
- 25.2 MW
- Status
- Operating
- Fuel
- Hydroelectric
- Technology
- Conventional Hydroelectric
- Operator
- NorthWestern Energy (MT Hydro)
- City
- Ennis
- County
- Madison County
- State
- Montana
- Operational date
- December 2021
- Balancing authority
- NWMT
Madison Dam is a 25.2 MW hydroelectric power plant in Ennis, Montana. Operated by NorthWestern Energy (MT Hydro), it has been operating since 2021. The facility is located in Madison County, within the NWMT balancing authority.
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Source: U.S. Energy Information Administration (EIA-860M)