M L Hibbard
Other power plant · St Louis County, Minnesota
Nameplate capacity
73 MW
Rank in Minnesota
#56
of 804 plants
In service since
1949
June 1949
Details
- Primary fuel
- Other
- Technology
- Wood/Wood Waste Biomass
- Operator
- ALLETE, Inc.
- County
- St Louis County
- Generating units
- 2
- Share of state capacity
- 0.37%
- Rank among other plants in Minnesota
- #3 of 71
- EIA plant code
- 1897
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 4 | Wood/Wood Waste Biomass | 38 MW | 30 MW | 1951 | Operating |
| 3 | Wood/Wood Waste Biomass | 35 MW | 30 MW | 1949 | 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
| New Ulm | Other | 79 MW |
| Black Oak Wind Farm | Wind | 78 MW |
| Thomson | Hydro | 73 MW |
| Marshall Solar Energy Project | Solar | 62 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 73 MW solar plant and a 73 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