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) | 482.7 GWh | Apr 2000 | Dec 2025 | Natural Gas |
| De Pere Energy Center | Wisconsin Public Service Corp | De Pere, WI | Midcontinent Independent System Operator, Inc. (MISO) | 180.2 GWh | May 1999 | Dec 2025 | Natural Gas : 59.9% Distillate Fuel Oil : 40.1% |
| Whitewater Generating Station | Wisconsin Electric Power Co | Whitewater, WI | Midcontinent Independent System Operator, Inc. (MISO) | 361.2 GWh | Aug 1997 | Jun 2026 | Natural Gas : 99.4% Distillate Fuel Oil : 0.6% |
| Kimberly Mill | City of Kaukauna (WI) | Appleton, WI | Midcontinent Independent System Operator, Inc. (MISO) | 13.3 GWh | Dec 1925 | Dec 2025 | Water |
| Flambeau Crowley Rapids Project | Zero6 Energy Hydro | Park Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 4.0 GWh | Dec 1929 | Dec 2025 | Water |
| Pheasant Run Landfill Gas Recovery | WM Renewable Energy LLC | Bristol, WI | Midcontinent Independent System Operator, Inc. (MISO) | 47.2 GWh | Jan 1992 | Dec 2025 | Landfill Gas |
| Port Edwards Mill | Domtar Industries Inc | Port Edwards, WI | Midcontinent Independent System Operator, Inc. (MISO) | 36.7 GWh | Dec 1912 | Jun 2026 | Water |
| Kaukauna Paper Mill | Thilmany LLC | Kaukauna, WI | Midcontinent Independent System Operator, Inc. (MISO) | 91.6 GWh | Dec 1950 | Jun 2026 | Natural Gas : 50.2% Black Liquor : 49.8% |
| Winnebago County Landfill Gas | Winnebago County - (WI) | Oshkosh, WI | Midcontinent Independent System Operator, Inc. (MISO) | 3.2 GWh | Jan 2000 | Dec 2025 | Landfill Gas |
| Rhinelander Mill | Ahlstrom-Munksjo | Rhinelander, WI | Midcontinent Independent System Operator, Inc. (MISO) | 7.6 GWh | Nov 1917 | Jun 2026 | Water |
| Mosinee Mill | Ahlstrom-Munksjo NA Specialty Solutions, LLC | Mosinee, WI | Midcontinent Independent System Operator, Inc. (MISO) | 99.3 GWh | Jun 1916 | Jun 2026 | Black Liquor : 43.7% Natural Gas : 22.5% Water : 15.2% Bituminous Coal : 11.8% Wood/Wood Waste Solids : 5.3% Sludge Waste : 1.2% |
| Omega Hills Gas Recovery | WM Renewable Energy LLC | Germantown, WI | Midcontinent Independent System Operator, Inc. (MISO) | 77.9 GWh | Nov 1985 | Jun 2026 | Landfill Gas |
| Metro Gas Recovery | WM Renewable Energy LLC | Franklin, WI | Midcontinent Independent System Operator, Inc. (MISO) | 41.2 GWh | Nov 1985 | Dec 2025 | Landfill Gas |
| Flambeau Lower Project | Zero6 Energy Hydro | Park Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 3.0 GWh | Dec 1922 | Dec 2025 | Water |
| Montfort Wind Energy Center | Wisconsin Electric Power Co | Montfort, WI | Midcontinent Independent System Operator, Inc. (MISO) | 50.8 GWh | May 2002 | Jun 2026 | Wind |
| Island Street Peaking Plant | WPPI Energy | Kaukauna, WI | Midcontinent Independent System Operator, Inc. (MISO) | 20.2 GWh | May 2004 | Dec 2025 | Natural Gas |
| Stevens Point Mill | Pixelle Specialty Solution, LLC | Stevens Point, WI | Midcontinent Independent System Operator, Inc. (MISO) | 14.5 GWh | Jan 2002 | Dec 2025 | Natural Gas |
| Ridgeview | WM Renewable Energy LLC | Whitelaw, WI | Midcontinent Independent System Operator, Inc. (MISO) | 37.3 GWh | Aug 2002 | Dec 2025 | Landfill Gas |
| Fox Energy Center | Wisconsin Public Service Corp | Wrightstown, WI | Midcontinent Independent System Operator, Inc. (MISO) | 4.1 TWh | May 2005 | Jun 2026 | Natural Gas |
| Elm Road Generating Station | Wisconsin Electric Power Co | Oak Creek, WI | Midcontinent Independent System Operator, Inc. (MISO) | 7.5 TWh | Jan 2010 | Jun 2026 | Subbituminous Coal : 88.4% Bituminous Coal : 8.7% Natural Gas : 2.9% |
| Berlin Landfill Gas | WM Renewable Energy LLC | Berlin, WI | Midcontinent Independent System Operator, Inc. (MISO) | 11.6 GWh | Jul 2001 | Dec 2025 | Landfill Gas |
| Diesel Generators | Madison Gas & Electric Co | Madison, WI | Midcontinent Independent System Operator, Inc. (MISO) | 1.2 GWh | May 2001 | Jun 2026 | Distillate Fuel Oil |
| Sheboygan Falls | Wisconsin Power & Light Co | Sheboygan, WI | Midcontinent Independent System Operator, Inc. (MISO) | 452.5 GWh | May 2005 | Dec 2025 | Natural Gas |
| Cedar Ridge | Wisconsin Power & Light Co | Eden, WI | Midcontinent Independent System Operator, Inc. (MISO) | 184.8 GWh | Nov 2008 | Dec 2025 | Wind |
| Blue Sky Green Field Wind Project | Wisconsin Electric Power Co | Fond du Lac, WI | Midcontinent Independent System Operator, Inc. (MISO) | 317.0 GWh | Apr 2008 | Jun 2026 | Wind |
| Ameresco Janesville | AMERESCO Janesville LLC | Janesville, WI | Midcontinent Independent System Operator, Inc. (MISO) | 3.1 GWh | Sep 2004 | Dec 2025 | Landfill Gas |
| Marshfield Utilities Gas Plant | City of Marshfield - (WI) | Marshfield, WI | Midcontinent Independent System Operator, Inc. (MISO) | 18.8 GWh | May 2011 | Dec 2025 | Natural Gas |
| Deertrack Park Gas Recovery | WM Renewable Energy LLC | Watertown, WI | Midcontinent Independent System Operator, Inc. (MISO) | 32.5 GWh | Jan 2006 | Dec 2025 | Landfill Gas |
| West Marinette 34 | Madison Gas & Electric Co | Peshtigo, WI | Midcontinent Independent System Operator, Inc. (MISO) | 84.9 GWh | May 2000 | Dec 2025 | Natural Gas |
| Manitowoc | Manitowoc Public Utilities | Manitowoc, WI | Midcontinent Independent System Operator, Inc. (MISO) | 186.3 GWh | May 1955 | Jun 2026 | Wood/Wood Waste Solids : 84.0% Petroleum Coke : 8.8% Bituminous Coal : 7.0% |
| New Lisbon | City of New Lisbon (WI) | New Lisbon, WI | Midcontinent Independent System Operator, Inc. (MISO) | 55.0 MWh | Dec 1965 | Dec 2025 | Distillate Fuel Oil |
| Viola | Village of Viola - (WI) | Viola, WI | Midcontinent Independent System Operator, Inc. (MISO) | 15.0 MWh | Dec 2001 | Dec 2025 | 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) | 5.3 GWh | Feb 1949 | Dec 2025 | Water |
| Washington Island | Washington Island El Coop, Inc | Washington Island, WI | Midcontinent Independent System Operator, Inc. (MISO) | 5.0 MWh | Nov 1945 | Dec 2025 | Distillate Fuel Oil |
| Combined Locks | City of Kaukauna (WI) | Combined Locks, WI | Midcontinent Independent System Operator, Inc. (MISO) | 42.6 GWh | Jan 1988 | Dec 2025 | Water |
| John P Madgett | Dairyland Power Coop | Alma, WI | Midcontinent Independent System Operator, Inc. (MISO) | 1.1 TWh | Oct 1979 | Jun 2026 | Subbituminous Coal : 99.5% Distillate Fuel Oil : 0.5% |
| Cornell | Northern States Power Co - Minnesota | Chippewa Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 69.9 GWh | Jun 1976 | Dec 2025 | Water |
| Apple River | Northern States Power Co - Minnesota | Somerset, WI | Midcontinent Independent System Operator, Inc. (MISO) | 13.2 GWh | Dec 1900 | Dec 2025 | Water |
| Germantown | Wisconsin Electric Power Co | Germantown, WI | Midcontinent Independent System Operator, Inc. (MISO) | 33.3 GWh | Jun 1978 | Dec 2025 | Natural Gas : 83.1% Distillate Fuel Oil : 16.9% |
| Concord | Wisconsin Electric Power Co | Watertown, WI | Midcontinent Independent System Operator, Inc. (MISO) | 203.4 GWh | Jun 1993 | Dec 2025 | Natural Gas : 98.9% Distillate Fuel Oil : 1.1% |
| South Fond Du Lac | Wisconsin Power & Light Co | Fond du Lac, WI | Midcontinent Independent System Operator, Inc. (MISO) | 20.3 GWh | Apr 1993 | Dec 2025 | Natural Gas : 99.8% |
| Paris (WI) | Wisconsin Electric Power Co | Union Grove, WI | Midcontinent Independent System Operator, Inc. (MISO) | 215.0 GWh | Feb 1995 | Dec 2025 | Natural Gas |
| Custer Energy Center | Manitowoc Public Utilities | Manitowoc, WI | Midcontinent Independent System Operator, Inc. (MISO) | 4.1 GWh | May 1999 | Dec 2025 | Natural Gas |
| Saxon Falls | Northern States Power Co - Minnesota | Saxon, WI | Midcontinent Independent System Operator, Inc. (MISO) | 9.1 GWh | Dec 1912 | Dec 2025 | Water |
| Argyle | City of Argyle - (WI) | Argyle, WI | Midcontinent Independent System Operator, Inc. (MISO) | 193.0 MWh | Dec 1928 | Dec 2025 | Water : 92.7% Distillate Fuel Oil : 7.3% |
| Kaukauna City Hydro | City of Kaukauna (WI) | Kaukauna, WI | Midcontinent Independent System Operator, Inc. (MISO) | 31.3 GWh | Nov 1940 | Dec 2025 | Water |
| Elk Mound | Dairyland Power Coop | Elk Mound, WI | Midcontinent Independent System Operator, Inc. (MISO) | 466.0 MWh | May 2001 | Dec 2025 | Natural Gas : 63.5% Distillate Fuel Oil : 36.5% |
| Wind Turbine | Madison Gas & Electric Co | Casco, WI | Midcontinent Independent System Operator, Inc. (MISO) | 12.0 GWh | May 1999 | Dec 2025 | Wind |
| West Campus Cogeneration Facility | Madison Gas & Electric Co | Madison, WI | Midcontinent Independent System Operator, Inc. (MISO) | 305.2 GWh | Mar 2005 | Dec 2025 | Natural Gas |
| Columbia (WI) | Wisconsin Power & Light Co | Pardeville, WI | Midcontinent Independent System Operator, Inc. (MISO) | 5.2 TWh | Apr 1975 | Jun 2026 | Subbituminous Coal : 99.9% |
| Nine Springs | Madison Gas & Electric Co | Madison, WI | Midcontinent Independent System Operator, Inc. (MISO) | 89.0 MWh | Nov 1964 | Dec 2025 | Natural Gas |
| 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% |
| Consumer Operations LLC | Georgia-Pacific Consumer Oper. Green Bay LLC | Green Bay, WI | Midcontinent Independent System Operator, Inc. (MISO) | 240.4 GWh | Dec 1953 | Jun 2026 | Natural Gas |
| LAC Courte Oreilles Hydroelect | Zero6 Energy Hydro | Winter, WI | Midcontinent Independent System Operator, Inc. (MISO) | 7.2 GWh | Nov 1986 | Dec 2025 | Water |
| Domtar Paper Company Rothschild | Domtar Paper Company Rothschild | Rothschild, WI | Midcontinent Independent System Operator, Inc. (MISO) | 524.0 MWh | Dec 1909 | Dec 2025 | Water |
| Georgia-Pacific Corp - Nekoosa Mill | Domtar Industries Inc | Nekoosa, WI | Midcontinent Independent System Operator, Inc. (MISO) | 156.2 GWh | Dec 1911 | Jun 2026 | Natural Gas : 43.0% Black Liquor : 41.2% Water : 15.7% |
| Park Mill | Eagle Creek Renewable Energy, LLC | Marinette, WI | Midcontinent Independent System Operator, Inc. (MISO) | 4.2 GWh | Dec 1919 | Dec 2025 | Water |
| Oconto Falls Lower | Eagle Creek Renewable Energy, LLC | Oconto Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 6.0 GWh | Dec 1970 | Dec 2025 | Water |
| Packaging of America Tomahawk Mill | PCA-Tomahawk Mill | Tomahawk, WI | Midcontinent Independent System Operator, Inc. (MISO) | 113.1 GWh | Dec 1919 | Dec 2025 | Wood/Wood Waste Solids : 35.4% Natural Gas : 35.0% Black Liquor : 18.0% Water : 11.0% Other Biomass Solids : 0.6% |