West Riverside Energy Center
Natural gas power plant · Rock County, Wisconsin
Nameplate capacity
728 MW
Rank in Wisconsin
#6
of 278 plants
In service since
2020
May 2020
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Fired Combined Cycle
- Operator
- Wisconsin Power & Light Co
- County
- Rock County
- Generating units
- 4
- Share of state capacity
- 3.69%
- Rank among natural gas plants in Wisconsin
- #2 of 41
- EIA plant code
- 64020
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| STG2 | Natural Gas Fired Combined Cycle | 257 MW | 256 MW | 2020 | Operating |
| CTG3 | Natural Gas Fired Combined Cycle | 233 MW | 216 MW | 2020 | Operating |
| CTG4 | Natural Gas Fired Combined Cycle | 233 MW | 212 MW | 2020 | Operating |
| PV1 | Solar Photovoltaic | 4.4 MW | 4.4 MW | 2021 | 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
| Columbia (WI) | Coal | 1,112 MW |
| Weston | Coal | 946 MW |
| Riverside Energy Center | Natural gas | 675 MW |
| South Oak Creek | Coal | 642 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 728 MW solar plant and a 728 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