Coal Power Plants in Wisconsin
Every operating coal power plant in Wisconsin on EIA-860M for 2026-07: 7 plants, 14 generating units and 5 GW of nameplate capacity across 6 counties, most of it inside MISO.
As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m
- Plants
- 7
- 14 generating units
- Nameplate capacity
- 5 GW
- Counties
- 6
- Grid operator
- MISO
- covers most of these plants
Map of coal power plants in Wisconsin
Every one of the 7 plants is drawn at the coordinate EIA files for it.
Loading map…
- Coal · 7
List of coal power plants in Wisconsin
Sort by any column. Capacity is nameplate, summed across every generating unit EIA lists at the site.
| Elm Road Generating StationConventional Steam Coal | Wisconsin Electric Power Co | Milwaukee | 1,402.6 | 2 | 2010 | Operating |
| Columbia (WI)Conventional Steam Coal | Wisconsin Power & Light Co | Columbia | 1,112 | 2 | 1975 | Operating |
| WestonConventional Steam Coal | Wisconsin Public Service Corp | Marathon | 945.5 | 2 | 1981 | Operating |
| South Oak CreekConventional Steam Coal | Wisconsin Electric Power Co | Milwaukee | 641.6 | 2 | 1965 | Operating |
| EdgewaterConventional Steam Coal | Wisconsin Power & Light Co | Sheboygan | 413.7 | 1 | 1985 | Operating |
| John P MadgettConventional Steam Coal | Dairyland Power Coop | Buffalo | 387 | 1 | 1979 | Operating |
| Biron Mill2 technologies | ND Paper, Inc. | Wood | 61.6 | 4 | 1947 | Out of service but expected to return to service in next calendar year |
Largest coal power plants in Wisconsin
- 1Elm Road Generating StationMilwaukee County, Wisconsin1,402.6 MW
- 2Columbia (WI)Columbia County, Wisconsin1,112 MW
- 3WestonMarathon County, Wisconsin945.5 MW
- 4South Oak CreekMilwaukee County, Wisconsin641.6 MW
- 5EdgewaterSheboygan County, Wisconsin413.7 MW
- 6John P MadgettBuffalo County, Wisconsin387 MW
- 7Biron MillWood County, Wisconsin61.6 MW
Coal power plants by county in Wisconsin
The county EIA files against each plant. It is the fastest way to find the plant nearest a given town.
| County | Plants | Nameplate MW |
|---|---|---|
| Milwaukee | 2 | 2,044.2 |
| Columbia | 1 | 1,112 |
| Marathon | 1 | 945.5 |
| Sheboygan | 1 | 413.7 |
| Buffalo | 1 | 387 |
| Wood | 1 | 61.6 |
Coal Power Plants in Wisconsin: FAQ
- How many coal power plants are in Wisconsin?
- 7, with 5 GW of nameplate capacity between them, spread over 6 counties. That is the EIA-860M operating count for 2026-07.
- Is there a map of Wisconsin coal power plants?
- Yes — the map above. Each dot is one coal power plant, sized by nameplate capacity and placed at the coordinates EIA files for it.
- Which is the largest coal power plant in Wisconsin?
- Elm Road Generating Station, at 1 GW. The table is sorted largest first, so the rest follow it.
- Is there a coal power plant near me in Wisconsin?
- The county roll-up below groups every plant by county, which is the quickest way to find the one closest to a given town.
- Which grid operator runs Wisconsin's coal power plants?
- Most of them sit inside MISO, according to the balancing-authority code EIA files against each plant. Live conditions for that market are on this site.
- How current is this, and what is left out?
- EIA-860M for 2026-07. Conventional steam coal and integrated gasification combined cycle. Plants below 1 MW are not surveyed by EIA and so are absent; retirements and additions after 2026-07 arrive with the next monthly release.