Directory of Power Plants in Wisconsin
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Lake Hallie | Standard Solar | Chippewa Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 1.0 MWh | - | Dec 2024 | Solar |
| Darien Solar | Wisconsin Electric Power Co | Darien, WI | Midcontinent Independent System Operator, Inc. (MISO) | 100.8 GWh | - | May 2025 | Solar |
| Whiting | Consolidated Water Power Co | Whiting, WI | Midcontinent Independent System Operator, Inc. (MISO) | 25.0 GWh | Dec 1890 | Dec 2024 | Water |
| Biron | Consolidated Water Power Co | Biron, WI | Midcontinent Independent System Operator, Inc. (MISO) | 30.9 GWh | Dec 1895 | Dec 2024 | Water |
| 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 |
| Apple River | Northern States Power Co - Minnesota | Somerset, WI | Midcontinent Independent System Operator, Inc. (MISO) | 13.0 GWh | Dec 1900 | Dec 2024 | Water |
| Wisconsin Rapids | Consolidated Water Power Co | Wisconsin Rapids, WI | Midcontinent Independent System Operator, Inc. (MISO) | 49.9 GWh | Dec 1902 | Dec 2024 | Water |
| White River (WI) | Northern States Power Co - Minnesota | Ashland, WI | Midcontinent Independent System Operator, Inc. (MISO) | 3.9 GWh | Dec 1906 | Dec 2024 | Water |
| Domtar Paper Company Rothschild | Domtar Paper Company Rothschild | Rothschild, WI | Midcontinent Independent System Operator, Inc. (MISO) | 3.0 GWh | Dec 1909 | May 2024 | Water |
| Cedar Falls (WI) | Northern States Power Co - Minnesota | Menomonie, WI | Midcontinent Independent System Operator, Inc. (MISO) | 34.3 GWh | Dec 1909 | Dec 2024 | Water |
| St Croix Falls | Northern States Power Co - Minnesota | St Croix Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 104.9 GWh | Dec 1909 | Dec 2024 | Water |
| 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 |
| Georgia-Pacific Corp - Nekoosa Mill | Domtar Industries Inc | Nekoosa, WI | Midcontinent Independent System Operator, Inc. (MISO) | 193.2 GWh | Dec 1911 | May 2025 | Black Liquor : 43.1% Natural Gas : 43.0% Water : 14.0% |
| Saxon Falls | Northern States Power Co - Minnesota | Saxon, WI | Midcontinent Independent System Operator, Inc. (MISO) | 8.0 GWh | Dec 1912 | Dec 2024 | Water |
| Port Edwards Mill | Domtar Industries Inc | Port Edwards, WI | Midcontinent Independent System Operator, Inc. (MISO) | 39.9 GWh | Dec 1912 | May 2025 | Water |
| Prairie Du Sac | Wisconsin Power & Light Co | Prairie du Sac, WI | Midcontinent Independent System Operator, Inc. (MISO) | 143.8 GWh | Sep 1915 | Dec 2024 | Water |
| Mosinee Mill | Ahlstrom-Munksjo NA Specialty Solutions, LLC | Mosinee, WI | Midcontinent Independent System Operator, Inc. (MISO) | 123.6 GWh | Jun 1916 | May 2025 | Black Liquor : 45.4% Bituminous Coal : 27.3% Water : 15.6% Wood/Wood Waste Solids : 5.3% Residual Fuel Oil : 2.3% Natural Gas : 2.3% Sludge Waste : 1.7% |
| Appleton | Wisconsin Electric Power Co | Appleton, WI | Midcontinent Independent System Operator, Inc. (MISO) | 6.4 GWh | Jul 1916 | Dec 2024 | Water |
| Wissota | Northern States Power Co - Minnesota | Chippewa Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 135.9 GWh | Dec 1916 | Dec 2024 | Water |
| Merrill | Wisconsin Public Service Corp | Merrill, WI | Midcontinent Independent System Operator, Inc. (MISO) | 4.3 GWh | Feb 1917 | Dec 2024 | Water |
| Rhinelander Mill | Ahlstrom-Munksjo | Rhinelander, WI | Midcontinent Independent System Operator, Inc. (MISO) | 5.4 GWh | Nov 1917 | May 2025 | Water |
| Stevens Point | Consolidated Water Power Co | Stevens Point, WI | Midcontinent Independent System Operator, Inc. (MISO) | 28.5 GWh | Dec 1917 | Dec 2024 | Water |
| Oconto Falls Upper | Eagle Creek Renewable Energy, LLC | Oconto Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 6.5 GWh | Dec 1917 | Dec 2024 | Water |
| Brule | Wisconsin Electric Power Co | Florence, WI | Midcontinent Independent System Operator, Inc. (MISO) | 15.9 GWh | Dec 1918 | Dec 2024 | Water |
| Packaging of America Tomahawk Mill | PCA-Tomahawk Mill | Tomahawk, WI | Midcontinent Independent System Operator, Inc. (MISO) | 111.3 GWh | Dec 1919 | Dec 2024 | Wood/Wood Waste Solids : 35.7% Natural Gas : 34.2% Black Liquor : 18.1% Water : 11.7% |
| Park Mill | Eagle Creek Renewable Energy, LLC | Marinette, WI | Midcontinent Independent System Operator, Inc. (MISO) | 9.2 GWh | Dec 1919 | Dec 2024 | Water |
| Danbury Dam | Renewable World Energies LLC | Danbury, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.6 GWh | Dec 1920 | Dec 2024 | Water |
| Wausau | Wisconsin Public Service Corp | Wausau, WI | Midcontinent Independent System Operator, Inc. (MISO) | 18.6 GWh | Feb 1921 | Dec 2024 | Water |
| Potato Rapids | Wisconsin Public Service Corp | Town of Porterfield, WI | Midcontinent Independent System Operator, Inc. (MISO) | 4.2 GWh | Apr 1921 | Dec 2024 | Water |
| Big Falls | Northern States Power Co - Minnesota | Glen Fora, WI | Midcontinent Independent System Operator, Inc. (MISO) | 36.1 GWh | Dec 1921 | Dec 2024 | Water |
| Pine | Wisconsin Electric Power Co | Florence, WI | Midcontinent Independent System Operator, Inc. (MISO) | 9.9 GWh | May 1922 | Dec 2024 | Water |
| Dells | Northern States Power Co - Minnesota | Eau Claire, WI | Midcontinent Independent System Operator, Inc. (MISO) | 42.4 GWh | Dec 1922 | 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 |
| Hat Rapids | Wisconsin Public Service Corp | Rhinelander, WI | Midcontinent Independent System Operator, Inc. (MISO) | 6.5 GWh | May 1923 | Dec 2024 | Water |
| Johnson Falls | Wisconsin Public Service Corp | Town of Stephenson, WI | Midcontinent Independent System Operator, Inc. (MISO) | 10.2 GWh | Jun 1923 | Dec 2024 | Water |
| Barron | City of Barron - (WI) | Barron, WI | Midcontinent Independent System Operator, Inc. (MISO) | 342.0 MWh | Jul 1923 | Dec 2024 | Water |
| Caldron Falls | Wisconsin Public Service Corp | Town of Stephenson, WI | Midcontinent Independent System Operator, Inc. (MISO) | 13.7 GWh | Oct 1924 | Dec 2024 | Water |
| Alexander | Wisconsin Public Service Corp | Merrill, WI | Midcontinent Independent System Operator, Inc. (MISO) | 19.0 GWh | Dec 1924 | Dec 2024 | Water |
| Sandstone Rapids | Wisconsin Public Service Corp | Town of Stephenson, WI | Midcontinent Independent System Operator, Inc. (MISO) | 8.8 GWh | Dec 1924 | Dec 2024 | Water |
| Rapide Croche | City of Kaukauna | Kaukana, WI | Midcontinent Independent System Operator, Inc. (MISO) | 17.2 GWh | Dec 1925 | Dec 2024 | Water |
| 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 |
| Trego | Northern States Power Co - Minnesota | Hayward, WI | Midcontinent Independent System Operator, Inc. (MISO) | 6.5 GWh | Dec 1926 | Dec 2024 | Water |
| Thornapple | Northern States Power Co - Minnesota | Bruce, WI | Midcontinent Independent System Operator, Inc. (MISO) | 7.6 GWh | Dec 1926 | Dec 2024 | Water |
| Chippewa Falls | Northern States Power Co - Minnesota | Chippewa Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 63.0 GWh | Dec 1927 | Dec 2024 | Water |
| 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% |
| Arcadia Electric | City of Arcadia - (WI) | Arcadia, WI | Midcontinent Independent System Operator, Inc. (MISO) | 150.0 MWh | Dec 1929 | Dec 2024 | Distillate Fuel Oil : 67.3% Natural Gas : 32.7% |
| 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 |
| Cashton | Village of Cashton - (WI) | Cashton, WI | Midcontinent Independent System Operator, Inc. (MISO) | 7.8 MWh | Jul 1932 | Dec 2024 | Distillate Fuel Oil : 98.9% Natural Gas : 1.1% |
| Tomahawk | Wisconsin Public Service Corp | Tomahawk, WI | Midcontinent Independent System Operator, Inc. (MISO) | 10.8 GWh | Dec 1937 | Dec 2024 | Water |
| Grandfather Falls | Wisconsin Public Service Corp | Irma, WI | Midcontinent Independent System Operator, Inc. (MISO) | 80.4 GWh | Nov 1938 | Dec 2024 | Water |
| 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% |
| French Island | Northern States Power Co - Minnesota | La Cross, WI | Midcontinent Independent System Operator, Inc. (MISO) | 62.2 GWh | Dec 1939 | May 2025 | Wood/Wood Waste Solids : 45.9% Non-biogenic Municipal Solid Waste : 27.5% Biogenic Municipal Solid Waste : 22.5% Distillate Fuel Oil : 3.9% |
| Ladysmith Dam | Northern States Power Co - Minnesota | Ladysmith, WI | Midcontinent Independent System Operator, Inc. (MISO) | 11.3 GWh | Dec 1939 | Dec 2024 | Water |
| Kaukauna City Hydro | City of Kaukauna | Kaukauna, WI | Midcontinent Independent System Operator, Inc. (MISO) | 23.0 GWh | Nov 1940 | Dec 2024 | Water |
| Du Bay | Consolidated Water Power Co | Eau Pleine, WI | Midcontinent Independent System Operator, Inc. (MISO) | 43.1 GWh | Dec 1941 | Dec 2024 | Water |
| Clam River Dam | Renewable World Energies LLC | Danbury, WI | Midcontinent Independent System Operator, Inc. (MISO) | 5.1 GWh | Mar 1942 | 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 |
| Biron Mill | ND Paper, Inc. | Wisconsin Rapids, WI | Midcontinent Independent System Operator, Inc. (MISO) | 95.7 GWh | Aug 1947 | Dec 2024 | Natural Gas : 79.6% Subbituminous Coal : 20.4% |
| Little Chute | City of Kaukauna | Combined Locks, WI | Midcontinent Independent System Operator, Inc. (MISO) | 23.8 GWh | May 1948 | Dec 2024 | Water |
| Bay Front | Northern States Power Co - Minnesota | Ashland, WI | Midcontinent Independent System Operator, Inc. (MISO) | 154.9 GWh | Dec 1948 | Dec 2023 | Tire-derived Fuels : 51.6% Wood/Wood Waste Solids : 48.2% |
| Stiles | Oconto Electric Cooperative | Oconto Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 5.6 GWh | Feb 1949 | Dec 2024 | Water |
| Petenwell | Wisconsin River Power Company | Necedah, WI | Midcontinent Independent System Operator, Inc. (MISO) | 108.4 GWh | Jul 1949 | Dec 2024 | Water |
| Pulliam | Wisconsin Public Service Corp | Green Bay, WI | Midcontinent Independent System Operator, Inc. (MISO) | 72.8 GWh | Aug 1949 | May 2025 | Natural Gas |
| Holcombe | Northern States Power Co - Minnesota | Holcombe, WI | Midcontinent Independent System Operator, Inc. (MISO) | 92.7 GWh | Dec 1949 | Dec 2024 | Water |
| Castle Rock | Wisconsin River Power Company | Adams, WI | Midcontinent Independent System Operator, Inc. (MISO) | 91.9 GWh | Jul 1950 | 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 |
| Kaukauna Paper Mill | Thilmany LLC | Kaukauna, WI | Midcontinent Independent System Operator, Inc. (MISO) | 114.6 GWh | Dec 1950 | May 2025 | Natural Gas : 52.6% Black Liquor : 47.4% |
| Edgewater | Wisconsin Power & Light Co | Sheboygan, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.1 TWh | Jun 1951 | May 2025 | Subbituminous Coal : 99.9% |
| Fennimore | City of Fennimore - (WI) | Fennimore, WI | Midcontinent Independent System Operator, Inc. (MISO) | 27.0 MWh | Jan 1952 | Dec 2024 | Distillate Fuel Oil |
| Consumer Operations LLC | Georgia-Pacific Consumer Oper. Green Bay LLC | Green Bay, WI | Midcontinent Independent System Operator, Inc. (MISO) | 246.0 GWh | Dec 1953 | May 2025 | Natural Gas |
| Weston | Wisconsin Public Service Corp | Rothschild, WI | Midcontinent Independent System Operator, Inc. (MISO) | 4.5 TWh | Nov 1954 | May 2025 | Subbituminous Coal : 99.5% |
| Manitowoc | Manitowoc Public Utilities | Manitowoc, WI | Midcontinent Independent System Operator, Inc. (MISO) | 153.1 GWh | May 1955 | May 2025 | Wood/Wood Waste Solids : 97.2% Petroleum Coke : 1.4% Bituminous Coal : 1.0% |
| Blount Street | Madison Gas & Electric Co | Madison, WI | Midcontinent Independent System Operator, Inc. (MISO) | 48.8 GWh | May 1957 | Dec 2024 | Natural Gas |
| Menomonie | Northern States Power Co - Minnesota | Menomonie, WI | Midcontinent Independent System Operator, Inc. (MISO) | 24.5 GWh | Dec 1957 | Dec 2024 | Water |
| South Oak Creek | Wisconsin Electric Power Co | Oak Creek, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.2 TWh | Nov 1959 | May 2025 | Subbituminous Coal : 99.7% |
| Nine Springs | Madison Gas & Electric Co | Madison, WI | Midcontinent Independent System Operator, Inc. (MISO) | 82.0 MWh | Nov 1964 | Dec 2024 | Natural Gas |
| 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 |
| Sycamore (WI) | Madison Gas & Electric Co | Madison, WI | Midcontinent Independent System Operator, Inc. (MISO) | 19.0 MWh | Nov 1967 | Dec 2024 | Natural Gas |
| Valley (WI) | Wisconsin Electric Power Co | Milwaukee, WI | Midcontinent Independent System Operator, Inc. (MISO) | 433.2 GWh | May 1968 | May 2025 | Natural Gas |
| Kaukauna Gas Turbine | City of Kaukauna | Kaukauna, WI | Midcontinent Independent System Operator, Inc. (MISO) | 1.7 GWh | Apr 1969 | Dec 2024 | Natural Gas |
| Point Beach Nuclear Plant | NextEra Energy Point Beach LLC | Two Rivers, WI | Midcontinent Independent System Operator, Inc. (MISO) | 9.8 TWh | May 1969 | May 2025 | Nuclear |
| MMSD Jones Island Wastewater | Milwaukee Metro Sewerage Dist | Milwaukee, WI | Midcontinent Independent System Operator, Inc. (MISO) | 66.3 GWh | Dec 1970 | May 2025 | Natural Gas : 82.7% Landfill Gas : 17.2% |
| Oconto Falls Lower | Eagle Creek Renewable Energy, LLC | Oconto Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 6.9 GWh | Dec 1970 | Dec 2024 | Water |
| West Marinette | Wisconsin Public Service Corp | Peshtigo, WI | Midcontinent Independent System Operator, Inc. (MISO) | 30.6 GWh | May 1971 | Dec 2024 | Natural Gas |
| Arpin Dam | Renewable World Energies LLC | Radisson, WI | Midcontinent Independent System Operator, Inc. (MISO) | 5.6 GWh | Aug 1971 | Dec 2024 | Water |
| Wheaton | Northern States Power Co - Minnesota | Eau Claire, WI | Midcontinent Independent System Operator, Inc. (MISO) | 18.6 GWh | Dec 1972 | Dec 2024 | Natural Gas : 96.6% Distillate Fuel Oil : 3.4% |
| Elroy | City of Elroy - (WI) | Elroy, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.0 MWh | Apr 1973 | Dec 2024 | Distillate Fuel Oil |
| Fitchburg | Madison Gas & Electric Co | Madison, WI | Midcontinent Independent System Operator, Inc. (MISO) | 14.0 MWh | Apr 1973 | Dec 2024 | Natural Gas |
| Columbia (WI) | Wisconsin Power & Light Co | Pardeville, WI | Midcontinent Independent System Operator, Inc. (MISO) | 5.7 TWh | Apr 1975 | May 2025 | Subbituminous Coal : 99.9% |
| Cornell | Northern States Power Co - Minnesota | Chippewa Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 82.4 GWh | Jun 1976 | 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% |
| John P Madgett | Dairyland Power Coop | Alma, WI | Midcontinent Independent System Operator, Inc. (MISO) | 938.3 GWh | Oct 1979 | May 2025 | Subbituminous Coal : 99.7% |
| Metro Gas Recovery | WM Renewable Energy LLC | Franklin, WI | Midcontinent Independent System Operator, Inc. (MISO) | 37.0 GWh | Nov 1985 | Dec 2024 | Landfill Gas |
| Omega Hills Gas Recovery | WM Renewable Energy LLC | Germantown, WI | Midcontinent Independent System Operator, Inc. (MISO) | 81.5 GWh | Nov 1985 | May 2025 | Landfill Gas |
| LAC Courte Oreilles Hydroelect | Renewable World Energies LLC | Winter, WI | Midcontinent Independent System Operator, Inc. (MISO) | 7.7 GWh | Nov 1986 | Dec 2024 | Water |
| Combined Locks | City of Kaukauna | Combined Locks, WI | Midcontinent Independent System Operator, Inc. (MISO) | 43.4 GWh | Jan 1988 | Dec 2024 | Water |
| Jim Falls | Northern States Power Co - Minnesota | Jim Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 121.9 GWh | Jun 1988 | 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 |
| Pheasant Run Landfill Gas Recovery | WM Renewable Energy LLC | Bristol, WI | Midcontinent Independent System Operator, Inc. (MISO) | 47.9 GWh | Jan 1992 | Dec 2024 | Landfill Gas |
Browse Power Plants By Wisconsin Counties
Figures are based on May 2025 generation numbers.| County | State Rank | Active Plants | May 2025 Generation |
|---|---|---|---|
| Portage County, WI | # 32 | 6 | 109.3 GWh |
| Adams County, WI | # 33 | 2 | 108.7 GWh |
| Richland County, WI | # 34 | 4 | 104.7 GWh |
| La Crosse County, WI | # 35 | 2 | 66.5 GWh |
| Dunn County, WI | # 36 | 5 | 65.9 GWh |
| Florence County, WI | # 37 | 3 | 56.6 GWh |
| Eau Claire County, WI | # 38 | 2 | 42.4 GWh |
| Oneida County, WI | # 39 | 3 | 24.5 GWh |
| Oconto County, WI | # 40 | 3 | 19.0 GWh |
| Barron County, WI | # 41 | 5 | 17.0 GWh |
| St. Croix County, WI | # 42 | 3 | 16.8 GWh |
| Monroe County, WI | # 43 | 3 | 14.0 GWh |
| Green Lake County, WI | # 44 | 1 | 13.6 GWh |
| Kewaunee County, WI | # 45 | 3 | 13.4 GWh |
| Sawyer County, WI | # 46 | 4 | 13.2 GWh |
| Price County, WI | # 47 | 6 | 12.4 GWh |
| Jackson County, WI | # 48 | 4 | 12.1 GWh |
| Washburn County, WI | # 49 | 3 | 10.0 GWh |
| Trempealeau County, WI | # 50 | 2 | 8.6 GWh |
| Iron County, WI | # 51 | 1 | 8.0 GWh |
| Burnett County, WI | # 52 | 4 | 7.7 GWh |
| Waukesha County, WI | # 53 | 2 | 7.0 GWh |
| Vernon County, WI | # 54 | 5 | 6.1 GWh |
| Walworth County, WI | # 55 | 3 | 4.0 GWh |
| Clark County, WI | # 56 | 1 | 3.7 GWh |
| Pierce County, WI | # 57 | 2 | 3.0 GWh |
| Taylor County, WI | # 58 | 1 | 2.7 GWh |
| Shawano County, WI | # 59 | 1 | 1.4 GWh |
| Langlade County, WI | # 60 | 1 | 279.0 MWh |
| Door County, WI | # 61 | 1 | 9.0 MWh |