Directory of Power Plants in Wisconsin
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Montfort Wind Energy Center | Wisconsin Electric Power Co | Montfort, WI | Midcontinent Independent System Operator, Inc. (MISO) | 55.8 GWh | May 2002 | Sep 2025 | Wind |
| 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% |
| MMSD Jones Island Wastewater | Milwaukee Metro Sewerage Dist | Milwaukee, WI | Midcontinent Independent System Operator, Inc. (MISO) | 74.1 GWh | Dec 1970 | Sep 2025 | Natural Gas : 79.4% Landfill Gas : 19.3% Distillate Fuel Oil : 1.3% |
| Middleton Biogas Solar, LLC | Middleton Biogas Solar, LLC | Middleton, WI | Midcontinent Independent System Operator, Inc. (MISO) | 1.8 GWh | Apr 2022 | Dec 2024 | Solar |
| Middleton Airport Solar | Madison Gas & Electric Co | Middleton, WI | Midcontinent Independent System Operator, Inc. (MISO) | 8.2 GWh | Jun 2020 | Dec 2024 | Solar |
| Metro Gas Recovery | WM Renewable Energy LLC | Franklin, WI | Midcontinent Independent System Operator, Inc. (MISO) | 37.0 GWh | Nov 1985 | Dec 2024 | Landfill Gas |
| Merrill | Wisconsin Public Service Corp | Merrill, WI | Midcontinent Independent System Operator, Inc. (MISO) | 4.3 GWh | Feb 1917 | Dec 2024 | Water |
| Menomonie | Northern States Power Co - Minnesota | Menomonie, WI | Midcontinent Independent System Operator, Inc. (MISO) | 24.5 GWh | Dec 1957 | Dec 2024 | Water |
| Medford DPC Solar | SoCore Energy LLC | Medford, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.6 GWh | Jan 2017 | Sep 2025 | Solar |
| Marshfield Utilities Gas Plant | City of Marshfield - (WI) | Marshfield, WI | Midcontinent Independent System Operator, Inc. (MISO) | 4.0 GWh | May 2011 | Dec 2024 | Natural Gas |
| 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% |
| Little Quinnesec Falls Hydro Project | Eagle Creek Renewable Energy, LLC | Niagara, WI | Midcontinent Independent System Operator, Inc. (MISO) | 56.6 GWh | Nov 1900 | Dec 2024 | Water |
| Little Chute | City of Kaukauna | Combined Locks, WI | Midcontinent Independent System Operator, Inc. (MISO) | 23.8 GWh | May 1948 | Dec 2024 | Water |
| Liberty Pole DPC Solar | SoCore Energy LLC | Viroqua, WI | Midcontinent Independent System Operator, Inc. (MISO) | 1.9 GWh | Apr 2017 | Sep 2025 | Solar |
| Lemonweir (Oak 1) | Greenbacker Renewable Energy Corporation | Mauston, WI | Midcontinent Independent System Operator, Inc. (MISO) | 5.9 GWh | Nov 2023 | Dec 2024 | Solar |
| Ledgeview | Greenbacker Renewable Energy Corporation | Fond du Lac, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.2 GWh | Jul 2024 | Dec 2024 | Solar |
| Lannon Stone | Wisconsin Electric Power Co | Pewaukee, WI | Midcontinent Independent System Operator, Inc. (MISO) | 3.7 GWh | Nov 2021 | Dec 2024 | Solar |
| Lake Hallie | Standard Solar | Chippewa Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 1.0 MWh | Nov 2024 | Dec 2024 | Solar |
| LaFayette Solar WI, LLC | Wisconsin Electric Power Co | Elkhorn, WI | Midcontinent Independent System Operator, Inc. (MISO) | 15.0 MWh | Nov 2024 | Dec 2024 | Solar |
| Lafayette DPC Solar | SoCore Energy LLC | Chippewa Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 1.6 GWh | May 2017 | Dec 2024 | Solar |
| Ladysmith Dam | Northern States Power Co - Minnesota | Ladysmith, WI | Midcontinent Independent System Operator, Inc. (MISO) | 11.3 GWh | Dec 1939 | Dec 2024 | Water |
| LAC Courte Oreilles Hydroelect | Renewable World Energies LLC | Winter, WI | Midcontinent Independent System Operator, Inc. (MISO) | 7.7 GWh | Nov 1986 | 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 |
| Kohler Solar | Wisconsin Power & Light Co | Kohler, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.6 GWh | May 2022 | Dec 2024 | Solar |
| Kimberly Mill | City of Kaukauna | Appleton, WI | Midcontinent Independent System Operator, Inc. (MISO) | 13.7 GWh | Dec 1925 | Dec 2024 | Water |
| Kilbourn | Wisconsin Power & Light Co | Wisconsin Dells, WI | Midcontinent Independent System Operator, Inc. (MISO) | 57.6 GWh | Jun 1926 | Dec 2024 | Water |
| Kaukauna Paper Mill | Thilmany LLC | Kaukauna, WI | Midcontinent Independent System Operator, Inc. (MISO) | 106.5 GWh | Dec 1950 | Sep 2025 | Natural Gas : 54.2% Black Liquor : 45.8% |
| Kaukauna Gas Turbine | City of Kaukauna | Kaukauna, WI | Midcontinent Independent System Operator, Inc. (MISO) | 1.7 GWh | Apr 1969 | Dec 2024 | Natural Gas |
| Kaukauna City Hydro | City of Kaukauna | Kaukauna, WI | Midcontinent Independent System Operator, Inc. (MISO) | 23.0 GWh | Nov 1940 | Dec 2024 | Water |
| Jones Dairy | Wisconsin Electric Power Co | Fort Atkinson, WI | Midcontinent Independent System Operator, Inc. (MISO) | 3.7 GWh | Jun 2021 | Dec 2024 | Solar |
| Johnson Falls | Wisconsin Public Service Corp | Town of Stephenson, WI | Midcontinent Independent System Operator, Inc. (MISO) | 10.2 GWh | Jun 1923 | 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% |
| Jim Falls | Northern States Power Co - Minnesota | Jim Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 121.9 GWh | Jun 1988 | Dec 2024 | Water |
| Jefferson Solar Park | Concord New Energy | Jefferson, WI | Midcontinent Independent System Operator, Inc. (MISO) | 918.0 MWh | Nov 2013 | Oct 2024 | Solar |
| Jackson Solar WI, LLC | Wisconsin Electric Power Co | Cedarburg, WI | Midcontinent Independent System Operator, Inc. (MISO) | 3.7 GWh | Nov 2023 | May 2024 | Solar |
| Island Street Peaking Plant | WPPI Energy | Kaukauna, WI | Midcontinent Independent System Operator, Inc. (MISO) | 11.0 GWh | May 2004 | Dec 2024 | Natural Gas |
| IKEA Oak Creek Rooftop PV System | IKEA Property Inc | Oak Creek, WI | Midcontinent Independent System Operator, Inc. (MISO) | 1.4 GWh | May 2018 | Dec 2024 | Solar |
| HQC Rock River Solar Power Gen Station | HQC Rock River Solar Power Generation Station LLC | Beloit, WI | Midcontinent Independent System Operator, Inc. (MISO) | 3.0 GWh | Jun 2016 | Dec 2024 | Solar |
| Holcombe | Northern States Power Co - Minnesota | Holcombe, WI | Midcontinent Independent System Operator, Inc. (MISO) | 92.7 GWh | Dec 1949 | Dec 2024 | Water |
| Hodag Solar | Wisconsin Public Service Corp | Rhinelander, WI | Midcontinent Independent System Operator, Inc. (MISO) | 12.6 GWh | Dec 2021 | Dec 2024 | Solar |
| High Falls (WI) | Wisconsin Public Service Corp | Town of Stephenson, WI | Midcontinent Independent System Operator, Inc. (MISO) | 16.4 GWh | Jul 1910 | Dec 2024 | Water |
| Hermsdorf Solar | Madison Gas & Electric Co | Madison, WI | Midcontinent Independent System Operator, Inc. (MISO) | 14.8 GWh | Feb 2022 | Dec 2024 | Solar |
| Hay River (Dunn 1) | Greenbacker Renewable Energy Corporation | Boyceville, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.8 GWh | Jan 2024 | Dec 2024 | Solar |
| Hat Rapids | Wisconsin Public Service Corp | Rhinelander, WI | Midcontinent Independent System Operator, Inc. (MISO) | 6.5 GWh | May 1923 | Dec 2024 | Water |
| Harley-Davison Powertrain Operations | Wisconsin Electric Power Co | Menomonee Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 3.3 GWh | Sep 2020 | Dec 2024 | Solar |
| Hackbarth Solar WI, LLC | Wisconsin Electric Power Co | Fort Atkinson, WI | Midcontinent Independent System Operator, Inc. (MISO) | 30.0 MWh | Nov 2024 | Dec 2024 | Solar |
| Grant County | Wisconsin Power & Light Co | Town of Potosi, WI | Midcontinent Independent System Operator, Inc. (MISO) | 374.6 GWh | Apr 2024 | Sep 2025 | Solar |
| Grandfather Falls | Wisconsin Public Service Corp | Irma, WI | Midcontinent Independent System Operator, Inc. (MISO) | 80.4 GWh | Nov 1938 | Dec 2024 | Water |
| Glacier Hills | Wisconsin Electric Power Co | Cambria, WI | Midcontinent Independent System Operator, Inc. (MISO) | 374.6 GWh | Nov 2011 | Sep 2025 | Wind |
| 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% |
| Georgia-Pacific Corp - Nekoosa Mill | Domtar Industries Inc | Nekoosa, WI | Midcontinent Independent System Operator, Inc. (MISO) | 186.3 GWh | Dec 1911 | Sep 2025 | Black Liquor : 43.1% Natural Gas : 42.5% Water : 14.4% |
| Georgetown (Polk Burnett) | Greenbacker Renewable Energy Corporation | Balsam Lake, WI | Midcontinent Independent System Operator, Inc. (MISO) | 3.8 GWh | Oct 2023 | Dec 2024 | Solar |
| Galactic Wind | Galactic Wind | Waunakee, WI | Midcontinent Independent System Operator, Inc. (MISO) | 22.0 GWh | Nov 2012 | Dec 2024 | Wind |
| French Island | Northern States Power Co - Minnesota | La Cross, WI | Midcontinent Independent System Operator, Inc. (MISO) | 60.1 GWh | Dec 1939 | Sep 2025 | Wood/Wood Waste Solids : 47.5% Non-biogenic Municipal Solid Waste : 28.4% Biogenic Municipal Solid Waste : 23.3% |
| Fox Energy Center | Wisconsin Public Service Corp | Wrightstown, WI | Midcontinent Independent System Operator, Inc. (MISO) | 3.6 TWh | May 2005 | Sep 2025 | Natural Gas |
| Forward Wind Energy Center | Wisconsin Public Service Corp | Brownsville, WI | Midcontinent Independent System Operator, Inc. (MISO) | 145.7 GWh | Jun 2008 | Sep 2025 | Wind |
| Fond du Lac Community Solar | SoCore Energy LLC | Fond Du Lac, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.1 GWh | Nov 2021 | Dec 2024 | Solar |
| Flambeau Solar Partners | Flambeau Solar Partners, LLC | Phillips, WI | Midcontinent Independent System Operator, Inc. (MISO) | 4.4 GWh | Apr 2017 | Dec 2024 | Solar |
| Flambeau Lower Project | Renewable World Energies LLC | Park Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.6 GWh | Dec 1922 | Dec 2024 | Water |
| Flambeau Hydroelectric Station | Dairyland Power Coop | Ladysmith, WI | Midcontinent Independent System Operator, Inc. (MISO) | 62.1 GWh | Dec 1950 | Dec 2024 | Water |
| 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 |
| Fitchburg | Madison Gas & Electric Co | Madison, WI | Midcontinent Independent System Operator, Inc. (MISO) | 14.0 MWh | Apr 1973 | Dec 2024 | Natural Gas |
| Fiber Recovery, Inc. | Fiber Recovery, Inc | Ringle, WI | Midcontinent Independent System Operator, Inc. (MISO) | 6.5 GWh | Dec 2007 | Dec 2024 | Landfill Gas |
| Fennimore Solar | Butter Solar, LLC | Fennimore, WI | Midcontinent Independent System Operator, Inc. (MISO) | 3.6 GWh | Aug 2019 | Dec 2024 | Solar |
| Fennimore | City of Fennimore - (WI) | Fennimore, WI | Midcontinent Independent System Operator, Inc. (MISO) | 27.0 MWh | Jan 1952 | Dec 2024 | Distillate Fuel Oil |
| Epic Verona | Epic Hosting, LLC | Verona, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.7 GWh | May 2009 | Dec 2024 | Solar : 91.9% Distillate Fuel Oil : 8.1% |
| ENGIE 2020 ProjectCo-WI1 LLC | ENGIE 2020 ProjectCo-WI1 LLC | Fond Du Lac, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.1 GWh | Nov 2021 | Dec 2024 | Solar |
| Elroy Solar | Butter Solar, LLC | Mauston, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.5 GWh | Aug 2019 | Dec 2024 | Solar |
| Elroy | City of Elroy - (WI) | Elroy, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.0 MWh | Apr 1973 | Dec 2024 | Distillate Fuel Oil |
| Elm Road Generating Station | Wisconsin Electric Power Co | Oak Creek, WI | Midcontinent Independent System Operator, Inc. (MISO) | 7.4 TWh | Jan 2010 | Sep 2025 | Subbituminous Coal : 79.7% Bituminous Coal : 17.0% Natural Gas : 3.3% |
| 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% |
| Edgewater | Wisconsin Power & Light Co | Sheboygan, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.0 TWh | Jun 1951 | Sep 2025 | Subbituminous Coal : 99.9% |
| Du Bay | Consolidated Water Power Co | Eau Pleine, WI | Midcontinent Independent System Operator, Inc. (MISO) | 43.1 GWh | Dec 1941 | Dec 2024 | Water |
| Downsville DPC Solar | SoCore Energy LLC | Menomonee, WI | Midcontinent Independent System Operator, Inc. (MISO) | 1.6 GWh | Jan 2017 | Sep 2025 | Solar |
| Domtar Paper Company Rothschild | Domtar Paper Company Rothschild | Rothschild, WI | Midcontinent Independent System Operator, Inc. (MISO) | 3.0 GWh | Dec 1909 | May 2024 | Water |
| Diesel Generators | Madison Gas & Electric Co | Madison, WI | Midcontinent Independent System Operator, Inc. (MISO) | 860.0 MWh | May 2001 | Sep 2025 | Distillate Fuel Oil |
| Dells | Northern States Power Co - Minnesota | Eau Claire, WI | Midcontinent Independent System Operator, Inc. (MISO) | 42.4 GWh | Dec 1922 | Dec 2024 | Water |
| Deertrack Park Gas Recovery | WM Renewable Energy LLC | Watertown, WI | Midcontinent Independent System Operator, Inc. (MISO) | 37.0 GWh | Jan 2006 | Dec 2024 | Landfill Gas |
| De Pere Energy Center | Wisconsin Public Service Corp | De Pere, WI | Midcontinent Independent System Operator, Inc. (MISO) | 138.0 GWh | May 1999 | Dec 2024 | Natural Gas : 68.9% Distillate Fuel Oil : 31.1% |
| Darien Solar | Wisconsin Electric Power Co | Darien, WI | Midcontinent Independent System Operator, Inc. (MISO) | 264.7 GWh | - | Sep 2025 | Solar |
| Dane County Solar LLC | Dane County Solar LLC | Cottage Grove, WI | Midcontinent Independent System Operator, Inc. (MISO) | 33.2 GWh | May 2023 | Dec 2024 | Solar |
| Dane County Airport Solar | Madison Gas & Electric Co | Madison, WI | Midcontinent Independent System Operator, Inc. (MISO) | 17.7 GWh | Nov 2020 | Dec 2024 | Solar |
| Danbury Dam | Renewable World Energies LLC | Danbury, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.6 GWh | Dec 1920 | Dec 2024 | Water |
| Custer Energy Center | Manitowoc Public Utilities | Manitowoc, WI | Midcontinent Independent System Operator, Inc. (MISO) | 5.5 GWh | May 1999 | Dec 2024 | Natural Gas |
| Cumberland (WI) | City of Cumberland - (WI) | Cumberland, WI | Midcontinent Independent System Operator, Inc. (MISO) | 260.0 MWh | Jul 1939 | Dec 2024 | Distillate Fuel Oil : 71.5% Natural Gas : 28.5% |
| Cumberland Solar | Butter Solar, LLC | Cumberland, WI | Midcontinent Independent System Operator, Inc. (MISO) | 3.7 GWh | Aug 2019 | Dec 2024 | Solar |
| CREE | Wisconsin Electric Power Co | Racine, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.3 GWh | Jul 2021 | Dec 2024 | Solar |
| Crawfish River | Wisconsin Power & Light Co | Jefferson, WI | Midcontinent Independent System Operator, Inc. (MISO) | 131.0 GWh | Nov 2023 | Sep 2025 | Solar |
| Cornell | Northern States Power Co - Minnesota | Chippewa Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 82.4 GWh | Jun 1976 | Dec 2024 | Water |
| Consumer Operations LLC | Georgia-Pacific Consumer Oper. Green Bay LLC | Green Bay, WI | Midcontinent Independent System Operator, Inc. (MISO) | 235.4 GWh | Dec 1953 | Sep 2025 | Natural Gas |
| Conrath DPC Solar | SoCore Energy LLC | Conrath, WI | Midcontinent Independent System Operator, Inc. (MISO) | 1.4 GWh | May 2017 | Dec 2024 | Solar |
| Concord | Wisconsin Electric Power Co | Watertown, WI | Midcontinent Independent System Operator, Inc. (MISO) | 175.2 GWh | Jun 1993 | Dec 2024 | Natural Gas : 99.8% |
| Combined Locks Energy Center | McKinley Paper | Combined Locks, WI | Midcontinent Independent System Operator, Inc. (MISO) | 310.4 GWh | Apr 2002 | Dec 2024 | Natural Gas |
| Combined Locks | City of Kaukauna | Combined Locks, WI | Midcontinent Independent System Operator, Inc. (MISO) | 43.4 GWh | Jan 1988 | Dec 2024 | Water |
| 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% |
| Clam River Dam | Renewable World Energies LLC | Danbury, WI | Midcontinent Independent System Operator, Inc. (MISO) | 5.1 GWh | Mar 1942 | Dec 2024 | Water |
| City of Milwaukee Landfill | Wisconsin Electric Power Co | Milwaukee, WI | Midcontinent Independent System Operator, Inc. (MISO) | 3.6 GWh | Jan 2021 | Dec 2024 | Solar |
| Chippewa Falls | Northern States Power Co - Minnesota | Chippewa Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 63.0 GWh | Dec 1927 | Dec 2024 | Water |
| Cedar Ridge | Wisconsin Power & Light Co | Eden, WI | Midcontinent Independent System Operator, Inc. (MISO) | 174.6 GWh | Nov 2008 | Dec 2024 | Wind |
| Cedar Falls (WI) | Northern States Power Co - Minnesota | Menomonie, WI | Midcontinent Independent System Operator, Inc. (MISO) | 34.3 GWh | Dec 1909 | Dec 2024 | Water |