John P Madgett
Coal power plant · Buffalo County, Wisconsin
Nameplate capacity
387 MW
Rank in Wisconsin
#13
of 278 plants
In service since
1979
November 1979
Details
- Primary fuel
- Coal
- Technology
- Conventional Steam Coal
- Operator
- Dairyland Power Coop
- County
- Buffalo County
- Generating units
- 1
- Share of state capacity
- 1.96%
- Rank among coal plants in Wisconsin
- #6 of 7
- EIA plant code
- 4271
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Conventional Steam Coal | 387 MW | 390 MW | 1979 | 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 Wisconsin
| Edgewater | Coal | 414 MW |
| Germantown | Natural gas | 391 MW |
| Concord | Natural gas | 382 MW |
| Paris (WI) | Natural gas | 382 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 387 MW solar plant and a 387 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 Wisconsin power plants · What Wisconsin actually generates