Columbia (WI)
Coal power plant · Columbia County, Wisconsin
Nameplate capacity
1,112 MW
Rank in Wisconsin
#4
of 278 plants
In service since
1975
May 1975
Details
- Primary fuel
- Coal
- Technology
- Conventional Steam Coal
- Operator
- Wisconsin Power & Light Co
- County
- Columbia County
- Generating units
- 2
- Share of state capacity
- 5.64%
- Rank among coal plants in Wisconsin
- #2 of 7
- EIA plant code
- 8023
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Conventional Steam Coal | 556 MW | 568 MW | 1975 | Operating |
| 2 | Conventional Steam Coal | 556 MW | 560 MW | 1978 | 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
| Point Beach Nuclear Plant | Nuclear | 1,311 MW |
| Port Washington Generating Station | Natural gas | 1,230 MW |
| Weston | Coal | 946 MW |
| West Riverside Energy Center | Natural gas | 728 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 1,112 MW solar plant and a 1,112 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