Directory of Power Plants in Wisconsin
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Kimberly Mill | City of Kaukauna | Appleton, WI | Midcontinent Independent System Operator, Inc. (MISO) | 13.7 GWh | Dec 1925 | 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 |
| Caldron Falls | Wisconsin Public Service Corp | Town of Stephenson, WI | Midcontinent Independent System Operator, Inc. (MISO) | 13.7 GWh | Oct 1924 | Dec 2024 | Water |
| Barron | City of Barron - (WI) | Barron, WI | Midcontinent Independent System Operator, Inc. (MISO) | 342.0 MWh | Jul 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 |
| Hat Rapids | Wisconsin Public Service Corp | Rhinelander, WI | Midcontinent Independent System Operator, Inc. (MISO) | 6.5 GWh | May 1923 | 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 |
| Pine | Wisconsin Electric Power Co | Florence, WI | Midcontinent Independent System Operator, Inc. (MISO) | 9.9 GWh | May 1922 | 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 |
| Potato Rapids | Wisconsin Public Service Corp | Town of Porterfield, WI | Midcontinent Independent System Operator, Inc. (MISO) | 4.2 GWh | Apr 1921 | Dec 2024 | Water |
| Wausau | Wisconsin Public Service Corp | Wausau, WI | Midcontinent Independent System Operator, Inc. (MISO) | 18.6 GWh | Feb 1921 | 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 |
| Park Mill | Eagle Creek Renewable Energy, LLC | Marinette, WI | Midcontinent Independent System Operator, Inc. (MISO) | 9.2 GWh | Dec 1919 | 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% |
| Brule | Wisconsin Electric Power Co | Florence, WI | Midcontinent Independent System Operator, Inc. (MISO) | 15.9 GWh | Dec 1918 | Dec 2024 | 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 |
| Rhinelander Mill | Ahlstrom-Munksjo | Rhinelander, WI | Midcontinent Independent System Operator, Inc. (MISO) | 5.8 GWh | Nov 1917 | Dec 2025 | Water |
| Merrill | Wisconsin Public Service Corp | Merrill, WI | Midcontinent Independent System Operator, Inc. (MISO) | 4.3 GWh | Feb 1917 | 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 |
| Appleton | Wisconsin Electric Power Co | Appleton, WI | Midcontinent Independent System Operator, Inc. (MISO) | 6.4 GWh | Jul 1916 | Dec 2024 | Water |
| Mosinee Mill | Ahlstrom-Munksjo NA Specialty Solutions, LLC | Mosinee, WI | Midcontinent Independent System Operator, Inc. (MISO) | 118.0 GWh | Jun 1916 | Dec 2025 | Black Liquor : 51.4% Bituminous Coal : 14.4% Water : 12.5% Natural Gas : 12.1% Wood/Wood Waste Solids : 6.3% Residual Fuel Oil : 1.7% Sludge Waste : 1.6% |
| 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 |
| 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) | 37.3 GWh | Dec 1912 | Dec 2025 | Water |
| Georgia-Pacific Corp - Nekoosa Mill | Domtar Industries Inc | Nekoosa, WI | Midcontinent Independent System Operator, Inc. (MISO) | 178.7 GWh | Dec 1911 | Dec 2025 | Black Liquor : 43.4% Natural Gas : 42.5% Water : 14.1% |
| 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 |
| 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 |
| Domtar Paper Company Rothschild | Domtar Paper Company Rothschild | Rothschild, WI | Midcontinent Independent System Operator, Inc. (MISO) | 3.0 GWh | Dec 1909 | May 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 |
| Wisconsin Rapids | Consolidated Water Power Co | Wisconsin Rapids, WI | Midcontinent Independent System Operator, Inc. (MISO) | 49.9 GWh | Dec 1902 | 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 |
| 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 |
| Biron | Consolidated Water Power Co | Biron, WI | Midcontinent Independent System Operator, Inc. (MISO) | 30.9 GWh | Dec 1895 | Dec 2024 | Water |
| Whiting | Consolidated Water Power Co | Whiting, WI | Midcontinent Independent System Operator, Inc. (MISO) | 25.0 GWh | Dec 1890 | Dec 2024 | Water |
| Darien Solar | Wisconsin Electric Power Co | Darien, WI | Midcontinent Independent System Operator, Inc. (MISO) | 314.6 GWh | - | Dec 2025 | Solar |
| Apple River Solar, LLC | Geronimo Power | Polk County, WI | 4.7 GWh | - | Dec 2025 | Solar |
Browse Power Plants By Wisconsin Counties
Figures are based on December 2024 generation numbers.| County | State Rank | Active Plants | Dec 2024 Generation |
|---|---|---|---|
| Juneau County, WI | # 29 | 9 | 125.4 GWh |
| Rusk County, WI | # 28 | 6 | 137.5 GWh |
| Sauk County, WI | # 27 | 1 | 143.8 GWh |
| Ashland County, WI | # 26 | 2 | 164.2 GWh |
| Waushara County, WI | # 25 | 1 | 187.1 GWh |
| Marinette County, WI | # 24 | 10 | 193.4 GWh |
| Lincoln County, WI | # 23 | 5 | 225.7 GWh |
| Kenosha County, WI | # 22 | 5 | 281.4 GWh |
| Racine County, WI | # 21 | 5 | 336.0 GWh |
| Lafayette County, WI | # 20 | 2 | 381.2 GWh |
| Iowa County, WI | # 19 | 3 | 464.1 GWh |
| Fond du Lac County, WI | # 18 | 9 | 521.9 GWh |
| Brown County, WI | # 17 | 8 | 532.3 GWh |
| Chippewa County, WI | # 16 | 12 | 548.3 GWh |
| Dodge County, WI | # 15 | 6 | 579.8 GWh |
| Wood County, WI | # 14 | 10 | 671.3 GWh |
| Grant County, WI | # 13 | 9 | 733.3 GWh |
| Winnebago County, WI | # 12 | 5 | 748.7 GWh |
| Dane County, WI | # 11 | 26 | 977.8 GWh |
| Jefferson County, WI | # 10 | 8 | 1.2 TWh |
| Buffalo County, WI | # 9 | 3 | 1.3 TWh |
| Sheboygan County, WI | # 8 | 5 | 2.9 TWh |
| Outagamie County, WI | # 7 | 15 | 4.2 TWh |
| Marathon County, WI | # 6 | 8 | 5.2 TWh |
| Columbia County, WI | # 5 | 6 | 6.4 TWh |
| Ozaukee County, WI | # 4 | 2 | 7.3 TWh |
| Rock County, WI | # 3 | 15 | 8.3 TWh |
| Milwaukee County, WI | # 2 | 11 | 10.0 TWh |
| Manitowoc County, WI | # 1 | 7 | 10.8 TWh |