Nameplate capacity
18 MW
Rank in Minnesota
#107
of 804 plants
In service since
1988
August 1988
Details
- Primary fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Operator
- ALLETE, Inc.
- County
- Morrison County
- Generating units
- 3
- Share of state capacity
- 0.09%
- Rank among hydro plants in Minnesota
- #2 of 22
- EIA plant code
- 1892
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Conventional Hydroelectric | 6.0 MW | 5.4 MW | 2025 | Operating |
| 2 | Conventional Hydroelectric | 6.0 MW | 5.4 MW | 2025 | Operating |
| 3 | Conventional Hydroelectric | 6.0 MW | 5.4 MW | 1988 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in Minnesota
| Owatonna | Natural gas | 19 MW |
| Arrowhead Emergency Generating Station | Other | 18 MW |
| Marshall (MN) | Other | 18 MW |
| Twin Cities Hydro LLC | Hydro | 18 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 18 MW solar plant and a 18 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Minnesota power plants · What Minnesota actually generates