Power plant · Wisconsin, United States
Rock River Power Plant
Rock River Power Plant is a closed gas power plant in Wisconsin, United States, with 319 MW of capacity, operated by Wisconsin Power & Light Co.
Grid connection
It closed in 2020, which freed up a 319 MW grid connection at 138 kV to the grid of American Transmission Co, unless it has been reassigned since.
Facts
Every value links to its source, and to the source's own record where it has one. Licences and last-checked dates are per row.
| Fact | Value | Source |
|---|---|---|
| Location | Wisconsin | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Status | Closed | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Start year | 1954 | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| End year | 2020 | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Operator | Wisconsin Power & Light Co | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Capacity | 319 MW (nameplate of its retired generators) | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Technology | Natural Gas Fired Combustion Turbine | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Grid operator | American Transmission Co | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Voltage | 138 kV (levels 138, 69 kV) | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Coordinates | 42.5831, -89.0259 | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
Research on this power plant and its operator.Who owns it up to the parent company, its grid connection and planning status, and an introduction to the operator.
Request researchHow it compares
Rock River is the 13th-largest of 15 power plants in Wisconsin and the 879th-largest of 1,009 in the United States by capacity; its 319 MW is <0.1% of the 917,512 MW we hold for the United States. Ranks and totals cover the power plants in our data that report their capacity, not every one in existence. Power plants planned, permitted or under construction are ranked apart.
| Within | Rank | Total | Share |
|---|---|---|---|
| Wisconsin | 13th of 15 | 11,372 MW | 2.8% |
| United States | 879th of 1,009 | 917,512 MW | <0.1% |
| All power plants in our data | 1,575th of 15,799 | 1,918,113 MW | <0.1% |
Timeline
Dated facts about this power plant from its sources, oldest first.
- Started operating
- Retired
Nearby
Within 50 km of this power plant: 2 mines, measured from the coordinates in the facts above.
| Name | Kind | Size | Status | Distance |
|---|---|---|---|---|
| Churchill Concrete & Stone LLC | Mine | — | Closed | 9.7 km |
| Pieper | Mine | — | Closed | 34 km |
Operator, grid operator and place
More from Wisconsin Power & Light Co
- Columbia (WI)1,112 MW
- West Riverside Energy Center728 MW
- Riverside Energy Center675 MW
Other power plants in Wisconsin
- Elm Road Generating Station1,403 MW
- Point Beach Nuclear Plant1,311 MW
- Pleasant Prairie1,235 MW
- Port Washington Generating Station1,230 MW
- Columbia (WI)1,112 MW
- Weston946 MW
- West Riverside Energy Center728 MW
- Riverside Energy Center675 MW
Data on this page
- Contains public sector information licensed under the Open Government Licence v3.0. DUKES 5.11: Power stations in the United Kingdom, Open Government Licence v3.0.
- Contains public sector information licensed under the Open Government Licence v3.0. DESNZ Renewable Energy Planning Database (REPD), Open Government Licence v3.0.
- Source: U.S. Energy Information Administration (Sep 2026). EIA-860 / 860M / 923, Public domain.
- JRC Open Power Plants Database (JRC-PPDB-OPEN), European Commission, Joint Research Centre. JRC Open Power Plants Database (JRC-PPDB-OPEN), CC BY 4.0.
- Bundesnetzagentur, Marktstammdatenregister. Marktstammdatenregister, DL-DE-BY-2.0.
- MSHA Mines Data Set. MSHA Mines Data Set, Public domain.
- Dutch power station owners' and operators' pages. Dutch power station owners' and operators' pages, Facts only, each linked to its page.
- Contains public sector information licensed under the Open Government Licence v3.0. Planning Inspectorate: National Infrastructure Projects, Open Government Licence v3.0.
- RVO SDE(+)(+) projecten in beheer and SDE viewer. RVO SDE(+)(+) projecten in beheer and SDE viewer, Free reuse, no attribution required.
- Wikidata. Wikidata, CC0 1.0.