Directory of Power Plants in Wisconsin
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Stromland Solar | Altus Power America Management, LLC | Cochrane, WI | Midcontinent Independent System Operator, Inc. (MISO) | 5.5 GWh | Nov 2021 | Dec 2025 | Solar |
| Red Barn Energy | Wisconsin Public Service Corp | Montfort, WI | Midcontinent Independent System Operator, Inc. (MISO) | 257.3 GWh | Mar 2023 | Jun 2026 | Wind |
| ENGIE 2020 ProjectCo-WI1 LLC | ENGIE 2020 ProjectCo-WI1 LLC | Fond Du Lac, WI | Midcontinent Independent System Operator, Inc. (MISO) | 1.7 GWh | Nov 2021 | Dec 2025 | Solar |
| Kohler Solar | Wisconsin Power & Light Co | Kohler, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.9 GWh | May 2022 | Dec 2025 | Solar |
| Paris Solar | Wisconsin Electric Power Co | Union Grove, WI | Midcontinent Independent System Operator, Inc. (MISO) | 291.8 GWh | Nov 2024 | Jun 2026 | Solar |
| Hodag Solar | Wisconsin Public Service Corp | Rhinelander, WI | Midcontinent Independent System Operator, Inc. (MISO) | 13.2 GWh | Dec 2021 | Dec 2025 | Solar |
| Middleton Biogas Solar, LLC | Middleton Biogas Solar, LLC | Middleton, WI | Midcontinent Independent System Operator, Inc. (MISO) | 1.9 GWh | Apr 2022 | Dec 2025 | Solar |
| Weston RICE | Wisconsin Public Service Corp | Kronenwetter, WI | Midcontinent Independent System Operator, Inc. (MISO) | 144.5 GWh | Jun 2023 | Dec 2025 | Natural Gas |
| Dane County Solar LLC | Dane County Solar LLC | Cottage Grove, WI | Midcontinent Independent System Operator, Inc. (MISO) | 33.7 GWh | May 2023 | Dec 2025 | Solar |
| Webster Creek (Oak 2) | Greenbacker Renewable Energy Corporation | New Lisbon, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.8 GWh | Nov 2023 | Dec 2025 | Solar |
| Lemonweir (Oak 1) | Greenbacker Renewable Energy Corporation | Mauston, WI | Midcontinent Independent System Operator, Inc. (MISO) | 5.6 GWh | Nov 2023 | Dec 2025 | Solar |
| Georgetown (Polk Burnett) | Greenbacker Renewable Energy Corporation | Balsam Lake, WI | Midcontinent Independent System Operator, Inc. (MISO) | 3.8 GWh | Oct 2023 | Dec 2025 | Solar |
| Bluff Prairie (Vernon) | Greenbacker Renewable Energy Corporation | De Soto, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.8 GWh | Oct 2023 | Dec 2025 | Solar |
| Hay River (Dunn 1) | Greenbacker Renewable Energy Corporation | Boyceville, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.7 GWh | Jan 2024 | Dec 2025 | Solar |
| Timberline Trail Gas Recovery | WM Renewable Energy LLC | Weyerhaeser, WI | Midcontinent Independent System Operator, Inc. (MISO) | 19.1 GWh | Jan 2006 | Dec 2025 | Landfill Gas |
| Popple Creek (Clark 1) | Greenbacker Renewable Energy Corporation | Colby, WI | Midcontinent Independent System Operator, Inc. (MISO) | 3.7 GWh | Jan 2024 | Dec 2025 | Solar |
| Trimbelle (Pierce Pepin) | Greenbacker Renewable Energy Corporation | Hager City, WI | Midcontinent Independent System Operator, Inc. (MISO) | 3.4 GWh | Jan 2024 | Dec 2025 | Solar |
| Ogema | Greenbacker Renewable Energy Corporation | Ogema, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.5 GWh | Feb 2024 | Dec 2025 | Solar |
| Ledgeview | Greenbacker Renewable Energy Corporation | Fond du Lac, WI | Midcontinent Independent System Operator, Inc. (MISO) | 9.9 GWh | Jul 2024 | Dec 2025 | Solar |
| Wolf River (Chipewa 1) | Greenbacker Renewable Energy Corporation | Stanley, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.6 GWh | Jan 2024 | Dec 2025 | Solar |
| Tyto Solar | Madison Gas & Electric Co | Fitchburg, WI | Midcontinent Independent System Operator, Inc. (MISO) | 11.3 GWh | Jan 2024 | Dec 2025 | Solar |
| Harley-Davison Powertrain Operations | Wisconsin Electric Power Co | Menomonee Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.6 GWh | Sep 2020 | Dec 2025 | Solar |
| City of Milwaukee Landfill | Wisconsin Electric Power Co | Milwaukee, WI | Midcontinent Independent System Operator, Inc. (MISO) | 3.2 GWh | Jan 2021 | Dec 2025 | Solar |
| ATI | Wisconsin Electric Power Co | Cudahy, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.9 GWh | Oct 2020 | Dec 2025 | Solar |
| CREE | Wisconsin Electric Power Co | Racine, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.2 GWh | Jul 2021 | Dec 2025 | Solar |
| Jones Dairy | Wisconsin Electric Power Co | Fort Atkinson, WI | Midcontinent Independent System Operator, Inc. (MISO) | 3.7 GWh | Jun 2021 | Dec 2025 | Solar |
| Regal Ware | Wisconsin Electric Power Co | West Bend, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.8 GWh | Mar 2021 | May 2025 | Solar |
| Washington County | Wisconsin Electric Power Co | West Bend, WI | Midcontinent Independent System Operator, Inc. (MISO) | 3.7 GWh | Dec 2019 | Dec 2025 | Solar |
| UW Parkside | Wisconsin Electric Power Co | Kenosha, WI | Midcontinent Independent System Operator, Inc. (MISO) | 4.0 GWh | Oct 2020 | Dec 2025 | Solar |
| Lannon Stone | Wisconsin Electric Power Co | Pewaukee, WI | Midcontinent Independent System Operator, Inc. (MISO) | 3.7 GWh | Nov 2021 | Dec 2025 | Solar |
| Caldron Falls | Wisconsin Public Service Corp | Town of Stephenson, WI | Midcontinent Independent System Operator, Inc. (MISO) | 10.9 GWh | Oct 1924 | Dec 2025 | Water |
| Sandstone Rapids | Wisconsin Public Service Corp | Town of Stephenson, WI | Midcontinent Independent System Operator, Inc. (MISO) | 9.7 GWh | Dec 1924 | Dec 2025 | Water |
| Pulliam | Wisconsin Public Service Corp | Green Bay, WI | Midcontinent Independent System Operator, Inc. (MISO) | 78.7 GWh | Aug 1949 | Jun 2026 | Natural Gas |
| Potato Rapids | Wisconsin Public Service Corp | Town of Porterfield, WI | Midcontinent Independent System Operator, Inc. (MISO) | 4.2 GWh | Apr 1921 | Dec 2025 | Water |
| Merrill | Wisconsin Public Service Corp | Merrill, WI | Midcontinent Independent System Operator, Inc. (MISO) | 3.7 GWh | Feb 1917 | Dec 2025 | Water |
| Johnson Falls | Wisconsin Public Service Corp | Town of Stephenson, WI | Midcontinent Independent System Operator, Inc. (MISO) | 10.7 GWh | Jun 1923 | Dec 2025 | Water |
| High Falls (WI) | Wisconsin Public Service Corp | Town of Stephenson, WI | Midcontinent Independent System Operator, Inc. (MISO) | 15.6 GWh | Jul 1910 | Dec 2025 | Water |
| Hat Rapids | Wisconsin Public Service Corp | Rhinelander, WI | Midcontinent Independent System Operator, Inc. (MISO) | 6.6 GWh | May 1923 | Dec 2025 | Water |
| Grandfather Falls | Wisconsin Public Service Corp | Irma, WI | Midcontinent Independent System Operator, Inc. (MISO) | 79.1 GWh | Nov 1938 | Dec 2025 | Water |
| Tomahawk | Wisconsin Public Service Corp | Tomahawk, WI | Midcontinent Independent System Operator, Inc. (MISO) | 10.7 GWh | Dec 1937 | Dec 2025 | Water |
| Alexander | Wisconsin Public Service Corp | Merrill, WI | Midcontinent Independent System Operator, Inc. (MISO) | 13.9 GWh | Dec 1924 | Dec 2025 | Water |
| Prairie Du Sac | Wisconsin Power & Light Co | Prairie du Sac, WI | Midcontinent Independent System Operator, Inc. (MISO) | 152.9 GWh | Sep 1915 | Dec 2025 | Water |
| Kilbourn | Wisconsin Power & Light Co | Wisconsin Dells, WI | Midcontinent Independent System Operator, Inc. (MISO) | 49.2 GWh | Jun 1926 | Dec 2025 | Water |
| Edgewater | Wisconsin Power & Light Co | Sheboygan, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.0 TWh | Jun 1951 | Jun 2026 | Subbituminous Coal : 99.8% |
| Point Beach Nuclear Plant | NextEra Energy Point Beach LLC | Two Rivers, WI | Midcontinent Independent System Operator, Inc. (MISO) | 10.0 TWh | May 1969 | Jun 2026 | Nuclear |
| Pine | Wisconsin Electric Power Co | Florence, WI | Midcontinent Independent System Operator, Inc. (MISO) | 11.1 GWh | May 1922 | Dec 2025 | Water |
| Oconto Falls Upper | Eagle Creek Renewable Energy, LLC | Oconto Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 12.0 GWh | Dec 1917 | Dec 2025 | Water |
| Appleton | Wisconsin Electric Power Co | Appleton, WI | Midcontinent Independent System Operator, Inc. (MISO) | 12.2 GWh | Jul 1916 | Dec 2025 | Water |
| West Marinette | Wisconsin Public Service Corp | Peshtigo, WI | Midcontinent Independent System Operator, Inc. (MISO) | 90.3 GWh | May 1971 | Dec 2025 | Natural Gas |
| Wausau | Wisconsin Public Service Corp | Wausau, WI | Midcontinent Independent System Operator, Inc. (MISO) | 24.5 GWh | Feb 1921 | Dec 2025 | Water |
| Weston | Wisconsin Public Service Corp | Rothschild, WI | Midcontinent Independent System Operator, Inc. (MISO) | 3.9 TWh | Nov 1954 | Jun 2026 | Subbituminous Coal : 99.3% Natural Gas : 0.7% |
| Castle Rock | Wisconsin River Power Company | Adams, WI | Midcontinent Independent System Operator, Inc. (MISO) | 83.3 GWh | Jul 1950 | Dec 2025 | Water |
| Petenwell | Wisconsin River Power Company | Necedah, WI | Midcontinent Independent System Operator, Inc. (MISO) | 97.2 GWh | Jul 1949 | Dec 2025 | Water |
| Arcadia Electric | City of Arcadia - (WI) | Arcadia, WI | Midcontinent Independent System Operator, Inc. (MISO) | 253.0 MWh | Dec 1929 | Dec 2025 | Distillate Fuel Oil : 70.5% Natural Gas : 29.5% |
| Barron | City of Barron - (WI) | Barron, WI | Midcontinent Independent System Operator, Inc. (MISO) | 382.0 MWh | Jul 1923 | Dec 2025 | Water |
| Cashton | Village of Cashton - (WI) | Cashton, WI | Midcontinent Independent System Operator, Inc. (MISO) | 9.8 MWh | Jul 1932 | Dec 2025 | Distillate Fuel Oil : 98.3% Natural Gas : 1.7% |
| Cumberland (WI) | City of Cumberland - (WI) | Cumberland, WI | Midcontinent Independent System Operator, Inc. (MISO) | 269.0 MWh | Jul 1939 | Dec 2025 | Distillate Fuel Oil : 62.7% Natural Gas : 37.3% |
| Elroy | City of Elroy - (WI) | Elroy, WI | Midcontinent Independent System Operator, Inc. (MISO) | 48.0 MWh | Apr 1973 | Dec 2025 | Distillate Fuel Oil |
| Fennimore | City of Fennimore - (WI) | Fennimore, WI | Midcontinent Independent System Operator, Inc. (MISO) | 75.0 MWh | Jan 1952 | Dec 2025 | Distillate Fuel Oil |
| Kaukauna Gas Turbine | City of Kaukauna (WI) | Kaukauna, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.3 GWh | Apr 1969 | Dec 2025 | Natural Gas |
| Little Chute | City of Kaukauna (WI) | Combined Locks, WI | Midcontinent Independent System Operator, Inc. (MISO) | 22.1 GWh | May 1948 | Dec 2025 | Water |
| New Badger | City of Kaukauna (WI) | Kaukauna, WI | Midcontinent Independent System Operator, Inc. (MISO) | 43.7 GWh | Dec 2013 | Jun 2026 | Water |
| Rapide Croche | City of Kaukauna (WI) | Kaukana, WI | Midcontinent Independent System Operator, Inc. (MISO) | 16.5 GWh | Dec 1925 | Dec 2025 | Water |
| Chippewa Falls | Northern States Power Co - Minnesota | Chippewa Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 56.1 GWh | Dec 1927 | Dec 2025 | Water |
| Brule | Wisconsin Electric Power Co | Florence, WI | Midcontinent Independent System Operator, Inc. (MISO) | 12.4 GWh | Dec 1918 | Dec 2025 | Water |
| Biron | Consolidated Water Power Co | Biron, WI | Midcontinent Independent System Operator, Inc. (MISO) | 29.6 GWh | Dec 1895 | Dec 2025 | Water |
| Du Bay | Consolidated Water Power Co | Eau Pleine, WI | Midcontinent Independent System Operator, Inc. (MISO) | 36.5 GWh | Dec 1941 | Dec 2025 | Water |
| Stevens Point | Consolidated Water Power Co | Stevens Point, WI | Midcontinent Independent System Operator, Inc. (MISO) | 25.9 GWh | Dec 1917 | Dec 2025 | Water |
| Wisconsin Rapids | Consolidated Water Power Co | Wisconsin Rapids, WI | Midcontinent Independent System Operator, Inc. (MISO) | 46.4 GWh | Dec 1902 | Dec 2025 | Water |
| Whiting | Consolidated Water Power Co | Whiting, WI | Midcontinent Independent System Operator, Inc. (MISO) | 16.1 GWh | Dec 1890 | Dec 2025 | Water |
| Bay Front | Northern States Power Co - Minnesota | Ashland, WI | Midcontinent Independent System Operator, Inc. (MISO) | 176.9 GWh | Dec 1948 | Dec 2025 | Wood/Wood Waste Solids : 95.1% Tire-derived Fuels : 4.2% Natural Gas : 0.7% |
| Big Falls | Northern States Power Co - Minnesota | Glen Fora, WI | Midcontinent Independent System Operator, Inc. (MISO) | 27.3 GWh | Dec 1921 | Dec 2025 | Water |
| Ladysmith Dam | Northern States Power Co - Minnesota | Ladysmith, WI | Midcontinent Independent System Operator, Inc. (MISO) | 9.6 GWh | Dec 1939 | Dec 2025 | Water |
| Thornapple | Northern States Power Co - Minnesota | Bruce, WI | Midcontinent Independent System Operator, Inc. (MISO) | 6.6 GWh | Dec 1926 | Dec 2025 | Water |
| White River (WI) | Northern States Power Co - Minnesota | Ashland, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.7 GWh | Dec 1906 | Dec 2025 | Water |
| Blount Street | Madison Gas & Electric Co | Madison, WI | Midcontinent Independent System Operator, Inc. (MISO) | 58.6 GWh | May 1957 | Dec 2025 | Natural Gas |
| Sycamore (WI) | Madison Gas & Electric Co | Madison, WI | Midcontinent Independent System Operator, Inc. (MISO) | 28.0 MWh | Nov 1967 | Dec 2025 | Natural Gas |
| Arpin Dam | Zero6 Energy Hydro | Radisson, WI | Midcontinent Independent System Operator, Inc. (MISO) | 5.5 GWh | Aug 1971 | Aug 2025 | Water |
| Cedar Falls (WI) | Northern States Power Co - Minnesota | Menomonie, WI | Midcontinent Independent System Operator, Inc. (MISO) | 30.9 GWh | Dec 1909 | Dec 2025 | Water |
| La Farge | La Farge Municipal Electric Co - (WI) | La Farge, WI | Midcontinent Independent System Operator, Inc. (MISO) | 12.0 MWh | Sep 1990 | Dec 2025 | Distillate Fuel Oil |
| Dells | Northern States Power Co - Minnesota | Eau Claire, WI | Midcontinent Independent System Operator, Inc. (MISO) | 36.9 GWh | Dec 1922 | Dec 2025 | Water |
| French Island | Northern States Power Co - Minnesota | La Cross, WI | Midcontinent Independent System Operator, Inc. (MISO) | 66.0 GWh | Dec 1939 | Jun 2026 | Wood/Wood Waste Solids : 42.6% Non-biogenic Municipal Solid Waste : 25.5% Biogenic Municipal Solid Waste : 20.9% Distillate Fuel Oil : 10.7% |
| Holcombe | Northern States Power Co - Minnesota | Holcombe, WI | Midcontinent Independent System Operator, Inc. (MISO) | 81.0 GWh | Dec 1949 | Dec 2025 | Water |
| Jim Falls | Northern States Power Co - Minnesota | Jim Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 105.3 GWh | Jun 1988 | Dec 2025 | Water |
| Menomonie | Northern States Power Co - Minnesota | Menomonie, WI | Midcontinent Independent System Operator, Inc. (MISO) | 22.7 GWh | Dec 1957 | Dec 2025 | Water |
| St Croix Falls | Northern States Power Co - Minnesota | St Croix Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 80.0 GWh | Dec 1909 | Dec 2025 | Water |
| Trego | Northern States Power Co - Minnesota | Hayward, WI | Midcontinent Independent System Operator, Inc. (MISO) | 5.1 GWh | Dec 1926 | Dec 2025 | Water |
| Wheaton | Northern States Power Co - Minnesota | Eau Claire, WI | Midcontinent Independent System Operator, Inc. (MISO) | 17.0 GWh | Dec 1972 | May 2025 | Natural Gas : 97.4% Distillate Fuel Oil : 2.6% |
| Wissota | Northern States Power Co - Minnesota | Chippewa Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 118.3 GWh | Dec 1916 | Dec 2025 | Water |
| Clam River Dam | Zero6 Energy Hydro | Danbury, WI | Midcontinent Independent System Operator, Inc. (MISO) | 4.8 GWh | Mar 1942 | Dec 2025 | Water |
| Danbury Dam | Zero6 Energy Hydro | Danbury, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.3 GWh | Dec 1920 | Dec 2025 | Water |
| Grantsburg Diesel | Northwestern Wisconsin Elec Co | Grantsburg, WI | Midcontinent Independent System Operator, Inc. (MISO) | 26.5 MWh | Nov 1963 | Dec 2025 | Distillate Fuel Oil |
| Port Washington Generating Station | Wisconsin Electric Power Co | Port Washington, WI | Midcontinent Independent System Operator, Inc. (MISO) | 6.8 TWh | Jun 2005 | Jun 2026 | Natural Gas |
| South Oak Creek | Wisconsin Electric Power Co | Oak Creek, WI | Midcontinent Independent System Operator, Inc. (MISO) | 1.9 TWh | Nov 1959 | Jun 2026 | Subbituminous Coal : 99.5% |
| Valley (WI) | Wisconsin Electric Power Co | Milwaukee, WI | Midcontinent Independent System Operator, Inc. (MISO) | 365.2 GWh | May 1968 | Jun 2026 | Natural Gas |
| MMSD Jones Island Wastewater | Milwaukee Metro Sewerage Dist | Milwaukee, WI | Midcontinent Independent System Operator, Inc. (MISO) | 84.1 GWh | Dec 1970 | Jun 2026 | Natural Gas : 85.8% Landfill Gas : 13.2% Distillate Fuel Oil : 1.0% |
| Riverside Energy Center | Wisconsin Power & Light Co | Beloit, WI | Midcontinent Independent System Operator, Inc. (MISO) | 3.4 TWh | May 2004 | Jun 2026 | Natural Gas |
| Combined Locks Energy Center | McKinley Paper | Combined Locks, WI | Midcontinent Independent System Operator, Inc. (MISO) | 301.6 GWh | Apr 2002 | Dec 2025 | Natural Gas |
| MMSD South Shore Wastewater | Milwaukee Metro Sewerage Dist | Oak Creek, WI | Midcontinent Independent System Operator, Inc. (MISO) | 23.0 GWh | Jul 2000 | Dec 2025 | Other Biomass Gas : 88.5% Natural Gas : 11.5% |
| RockGen Energy Center | Dairyland Power Coop | Cambridge, WI | Midcontinent Independent System Operator, Inc. (MISO) | 625.4 GWh | May 2001 | Jun 2026 | Natural Gas : 98.4% Distillate Fuel Oil : 1.6% |
Browse Power Plants By Wisconsin Counties
Figures are based on June 2026 generation numbers.| County | State Rank | Active Plants | Jun 2026 Generation |
|---|---|---|---|
| Richland County, WI | # 32 | 4 | 108.1 GWh |
| Adams County, WI | # 33 | 2 | 98.8 GWh |
| Portage County, WI | # 34 | 7 | 92.9 GWh |
| La Crosse County, WI | # 35 | 3 | 69.9 GWh |
| Dunn County, WI | # 36 | 5 | 60.8 GWh |
| Florence County, WI | # 37 | 3 | 60.5 GWh |
| Eau Claire County, WI | # 38 | 3 | 37.1 GWh |
| Oneida County, WI | # 39 | 3 | 27.5 GWh |
| Walworth County, WI | # 40 | 6 | 24.1 GWh |
| Oconto County, WI | # 41 | 3 | 23.3 GWh |
| Langlade County, WI | # 42 | 2 | 17.9 GWh |
| St. Croix County, WI | # 43 | 5 | 17.8 GWh |
| Barron County, WI | # 44 | 7 | 17.0 GWh |
| Price County, WI | # 45 | 6 | 14.0 GWh |
| Jackson County, WI | # 46 | 4 | 12.8 GWh |
| Monroe County, WI | # 47 | 3 | 12.8 GWh |
| Sawyer County, WI | # 48 | 4 | 12.7 GWh |
| Kewaunee County, WI | # 49 | 3 | 12.0 GWh |
| Shawano County, WI | # 50 | 1 | 12.0 GWh |
| Green Lake County, WI | # 51 | 1 | 11.6 GWh |
| Iron County, WI | # 52 | 1 | 9.1 GWh |
| Washburn County, WI | # 53 | 4 | 8.8 GWh |
| Trempealeau County, WI | # 54 | 2 | 7.4 GWh |
| Burnett County, WI | # 55 | 6 | 7.2 GWh |
| Waukesha County, WI | # 56 | 2 | 6.3 GWh |
| Vernon County, WI | # 57 | 5 | 6.3 GWh |
| Clark County, WI | # 58 | 2 | 3.7 GWh |
| Pierce County, WI | # 59 | 2 | 3.4 GWh |
| Taylor County, WI | # 60 | 2 | 3.3 GWh |
| Door County, WI | # 61 | 1 | 5.0 MWh |