Directory of Power Plants in Wisconsin
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Alliant Energy Neenah | Wisconsin Power & Light Co | Neenah, WI | Midcontinent Independent System Operator, Inc. (MISO) | 739.9 GWh | Apr 2000 | Dec 2024 | Natural Gas |
| RockGen Energy Center | Dairyland Power Coop | Cambridge, WI | Midcontinent Independent System Operator, Inc. (MISO) | 510.3 GWh | May 2001 | Sep 2025 | Natural Gas : 99.1% Distillate Fuel Oil : 0.9% |
| MMSD South Shore Wastewater | Milwaukee Metro Sewerage Dist | Oak Creek, WI | Midcontinent Independent System Operator, Inc. (MISO) | 26.3 GWh | Jul 2000 | Dec 2024 | Other Biomass Gas : 88.7% Natural Gas : 11.3% |
| Combined Locks Energy Center | McKinley Paper | Combined Locks, WI | Midcontinent Independent System Operator, Inc. (MISO) | 310.4 GWh | Apr 2002 | Dec 2024 | Natural Gas |
| Riverside Energy Center | Wisconsin Power & Light Co | Beloit, WI | Midcontinent Independent System Operator, Inc. (MISO) | 3.2 TWh | May 2004 | Sep 2025 | Natural Gas |
| Flambeau Crowley Rapids Project | Renewable World Energies LLC | Park Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 3.3 GWh | Dec 1929 | Dec 2024 | Water |
| Flambeau Lower Project | Renewable World Energies LLC | Park Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.6 GWh | Dec 1922 | Dec 2024 | Water |
| Montfort Wind Energy Center | Wisconsin Electric Power Co | Montfort, WI | Midcontinent Independent System Operator, Inc. (MISO) | 55.8 GWh | May 2002 | Sep 2025 | Wind |
| Island Street Peaking Plant | WPPI Energy | Kaukauna, WI | Midcontinent Independent System Operator, Inc. (MISO) | 11.0 GWh | May 2004 | Dec 2024 | Natural Gas |
| Stevens Point Mill | Pixelle Specialty Solution, LLC | Stevens Point, WI | Midcontinent Independent System Operator, Inc. (MISO) | 12.7 GWh | Jan 2002 | Dec 2024 | Natural Gas |
| Apple River | Northern States Power Co - Minnesota | Somerset, WI | Midcontinent Independent System Operator, Inc. (MISO) | 13.0 GWh | Dec 1900 | Dec 2024 | Water |
| Kaukauna Gas Turbine | City of Kaukauna | Kaukauna, WI | Midcontinent Independent System Operator, Inc. (MISO) | 1.7 GWh | Apr 1969 | Dec 2024 | Natural Gas |
| Little Chute | City of Kaukauna | Combined Locks, WI | Midcontinent Independent System Operator, Inc. (MISO) | 23.8 GWh | May 1948 | Dec 2024 | Water |
| New Badger | City of Kaukauna | Kaukauna, WI | Midcontinent Independent System Operator, Inc. (MISO) | 47.5 GWh | Dec 2013 | Sep 2025 | Water |
| Rapide Croche | City of Kaukauna | Kaukana, WI | Midcontinent Independent System Operator, Inc. (MISO) | 17.2 GWh | Dec 1925 | Dec 2024 | Water |
| La Farge | La Farge Municipal Electric Co | La Farge, WI | Midcontinent Independent System Operator, Inc. (MISO) | 5.0 MWh | Sep 1990 | Dec 2024 | Distillate Fuel Oil |
| Manitowoc | Manitowoc Public Utilities | Manitowoc, WI | Midcontinent Independent System Operator, Inc. (MISO) | 179.3 GWh | May 1955 | Sep 2025 | Wood/Wood Waste Solids : 91.2% Petroleum Coke : 4.8% Bituminous Coal : 3.6% |
| New Lisbon | City of New Lisbon | New Lisbon, WI | Midcontinent Independent System Operator, Inc. (MISO) | 19.0 MWh | Dec 1965 | Dec 2024 | Distillate Fuel Oil |
| Viola | Village of Viola - (WI) | Viola, WI | Midcontinent Independent System Operator, Inc. (MISO) | 5.0 MWh | Dec 2001 | Dec 2024 | Distillate Fuel Oil |
| Flambeau Hydroelectric Station | Dairyland Power Coop | Ladysmith, WI | Midcontinent Independent System Operator, Inc. (MISO) | 62.1 GWh | Dec 1950 | Dec 2024 | Water |
| Stiles | Oconto Electric Cooperative | Oconto Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 5.6 GWh | Feb 1949 | Dec 2024 | Water |
| Washington Island | Washington Island El Coop, Inc | Washington Island, WI | Midcontinent Independent System Operator, Inc. (MISO) | 9.0 MWh | Nov 1945 | Dec 2023 | Distillate Fuel Oil |
| Combined Locks | City of Kaukauna | Combined Locks, WI | Midcontinent Independent System Operator, Inc. (MISO) | 43.4 GWh | Jan 1988 | Dec 2024 | Water |
| John P Madgett | Dairyland Power Coop | Alma, WI | Midcontinent Independent System Operator, Inc. (MISO) | 1.2 TWh | Oct 1979 | Sep 2025 | Subbituminous Coal : 99.8% |
| Cornell | Northern States Power Co - Minnesota | Chippewa Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 82.4 GWh | Jun 1976 | Dec 2024 | Water |
| Saxon Falls | Northern States Power Co - Minnesota | Saxon, WI | Midcontinent Independent System Operator, Inc. (MISO) | 8.0 GWh | Dec 1912 | Dec 2024 | Water |
| Germantown | Wisconsin Electric Power Co | Germantown, WI | Midcontinent Independent System Operator, Inc. (MISO) | 28.1 GWh | Jun 1978 | Dec 2024 | Natural Gas : 94.1% Distillate Fuel Oil : 5.9% |
| Concord | Wisconsin Electric Power Co | Watertown, WI | Midcontinent Independent System Operator, Inc. (MISO) | 175.2 GWh | Jun 1993 | Dec 2024 | Natural Gas : 99.8% |
| South Fond Du Lac | Wisconsin Power & Light Co | Fond du Lac, WI | Midcontinent Independent System Operator, Inc. (MISO) | 5.4 GWh | Apr 1993 | Dec 2024 | Natural Gas : 98.0% Distillate Fuel Oil : 2.0% |
| Paris (WI) | Wisconsin Electric Power Co | Union Grove, WI | Midcontinent Independent System Operator, Inc. (MISO) | 227.4 GWh | Feb 1995 | Dec 2024 | Natural Gas |
| Custer Energy Center | Manitowoc Public Utilities | Manitowoc, WI | Midcontinent Independent System Operator, Inc. (MISO) | 5.5 GWh | May 1999 | Dec 2024 | Natural Gas |
| West Marinette 34 | Madison Gas & Electric Co | Peshtigo, WI | Midcontinent Independent System Operator, Inc. (MISO) | 43.6 GWh | May 2000 | Dec 2024 | Natural Gas |
| Argyle | City of Argyle - (WI) | Argyle, WI | Midcontinent Independent System Operator, Inc. (MISO) | 24.0 MWh | Dec 1928 | Dec 2024 | Water : 87.5% Distillate Fuel Oil : 12.5% |
| Kaukauna City Hydro | City of Kaukauna | Kaukauna, WI | Midcontinent Independent System Operator, Inc. (MISO) | 23.0 GWh | Nov 1940 | Dec 2024 | Water |
| Elk Mound | Dairyland Power Coop | Elk Mound, WI | Midcontinent Independent System Operator, Inc. (MISO) | 25.2 GWh | May 2001 | Dec 2024 | Natural Gas : 99.5% Distillate Fuel Oil : 0.5% |
| Wind Turbine | Madison Gas & Electric Co | Casco, WI | Midcontinent Independent System Operator, Inc. (MISO) | 13.4 GWh | May 1999 | Dec 2024 | Wind |
| West Campus Cogeneration Facility | Madison Gas & Electric Co | Madison, WI | Midcontinent Independent System Operator, Inc. (MISO) | 282.0 GWh | Mar 2005 | Dec 2024 | Natural Gas : 99.8% |
| Columbia (WI) | Wisconsin Power & Light Co | Pardeville, WI | Midcontinent Independent System Operator, Inc. (MISO) | 6.3 TWh | Apr 1975 | Sep 2025 | Subbituminous Coal : 99.9% |
| Nine Springs | Madison Gas & Electric Co | Madison, WI | Midcontinent Independent System Operator, Inc. (MISO) | 82.0 MWh | Nov 1964 | Dec 2024 | Natural Gas |