Directory of Power Plants in Wisconsin
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Manitowoc | Manitowoc Public Utilities | Manitowoc, WI | Midcontinent Independent System Operator, Inc. (MISO) | 148.5 GWh | May 1955 | Feb 2025 | Wood/Wood Waste Solids : 97.1% Petroleum Coke : 1.4% Bituminous Coal : 1.0% |
| Mosinee Mill | Ahlstrom-Munksjo NA Specialty Solutions, LLC | Mosinee, WI | Midcontinent Independent System Operator, Inc. (MISO) | 122.9 GWh | Jun 1916 | Feb 2025 | Black Liquor : 40.2% Bituminous Coal : 32.1% Water : 17.0% Wood/Wood Waste Solids : 4.0% Residual Fuel Oil : 3.1% Natural Gas : 2.0% Sludge Waste : 1.6% |
| MMSD Jones Island Wastewater | Milwaukee Metro Sewerage Dist | Milwaukee, WI | Midcontinent Independent System Operator, Inc. (MISO) | 55.9 GWh | Dec 1970 | Feb 2025 | Natural Gas : 85.4% Landfill Gas : 14.4% |
| Montfort Wind Energy Center | Wisconsin Electric Power Co | Montfort, WI | Midcontinent Independent System Operator, Inc. (MISO) | 59.1 GWh | May 2002 | Feb 2025 | Wind |
| Mt. Hope DPC Solar | SoCore Energy LLC | Mt. Hope, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.2 GWh | Dec 2016 | Feb 2025 | Solar |
| Medford DPC Solar | SoCore Energy LLC | Medford, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.7 GWh | Jan 2017 | Feb 2025 | Solar |
| Menomonie | Northern States Power Co - Minnesota | Menomonie, WI | Midcontinent Independent System Operator, Inc. (MISO) | 24.2 GWh | Dec 1957 | Dec 2023 | Water |
| Merrill | Wisconsin Public Service Corp | Merrill, WI | Midcontinent Independent System Operator, Inc. (MISO) | 8.2 GWh | Feb 1917 | Dec 2023 | Water |
| Metro Gas Recovery | WM Renewable Energy LLC | Franklin, WI | Midcontinent Independent System Operator, Inc. (MISO) | 43.9 GWh | Nov 1985 | Dec 2023 | Landfill Gas |
| MMSD South Shore Wastewater | Milwaukee Metro Sewerage Dist | Oak Creek, WI | Midcontinent Independent System Operator, Inc. (MISO) | 30.2 GWh | Jul 2000 | Dec 2023 | Other Biomass Gas : 76.4% Natural Gas : 23.6% |
| Marshfield Utilities Gas Plant | City of Marshfield - (WI) | Marshfield, WI | Midcontinent Independent System Operator, Inc. (MISO) | 8.9 GWh | May 2011 | Dec 2023 | Natural Gas |
| Middleton Airport Solar | Madison Gas & Electric Co | Middleton, WI | Midcontinent Independent System Operator, Inc. (MISO) | 7.7 GWh | Jun 2020 | Dec 2023 | Solar |
| Middleton Biogas Solar, LLC | Middleton Biogas Solar, LLC | Middleton, WI | Midcontinent Independent System Operator, Inc. (MISO) | 3.3 GWh | Apr 2022 | Dec 2023 | Solar |
Browse Power Plants By Wisconsin Counties
Figures are based on December 2023 generation numbers.| County | State Rank | Active Plants | Dec 2023 Generation |
|---|---|---|---|
| Door County, WI | # 56 | 1 | 9.0 MWh |
| Taylor County, WI | # 55 | 1 | 2.7 GWh |
| Vernon County, WI | # 54 | 5 | 3.4 GWh |
| Waukesha County, WI | # 53 | 2 | 6.1 GWh |
| Burnett County, WI | # 52 | 4 | 7.5 GWh |
| Trempealeau County, WI | # 51 | 2 | 8.1 GWh |
| Iron County, WI | # 50 | 1 | 9.1 GWh |
| Price County, WI | # 49 | 7 | 10.7 GWh |
| Washburn County, WI | # 48 | 3 | 10.8 GWh |
| Green Lake County, WI | # 47 | 1 | 11.1 GWh |
| Oconto County, WI | # 46 | 3 | 13.0 GWh |
| Monroe County, WI | # 45 | 3 | 13.0 GWh |
| Sawyer County, WI | # 44 | 4 | 13.8 GWh |
| Jackson County, WI | # 43 | 4 | 13.9 GWh |
| Kewaunee County, WI | # 42 | 3 | 15.0 GWh |
| St. Croix County, WI | # 41 | 3 | 15.0 GWh |
| Barron County, WI | # 40 | 5 | 17.0 GWh |
| Oneida County, WI | # 39 | 3 | 24.3 GWh |
| Eau Claire County, WI | # 38 | 2 | 43.1 GWh |
| Dunn County, WI | # 37 | 5 | 58.9 GWh |
| La Crosse County, WI | # 36 | 2 | 62.4 GWh |
| Florence County, WI | # 35 | 3 | 65.9 GWh |
| Racine County, WI | # 34 | 5 | 73.9 GWh |
| Adams County, WI | # 33 | 2 | 75.6 GWh |
| Polk County, WI | # 32 | 5 | 90.8 GWh |
| Portage County, WI | # 31 | 6 | 92.0 GWh |
| Washington County, WI | # 30 | 6 | 101.9 GWh |
| Richland County, WI | # 29 | 4 | 102.7 GWh |
| County | State Rank | Active Plants | Dec 2023 Generation |
|---|---|---|---|
| Juneau County, WI | # 28 | 9 | 104.3 GWh |
| Rusk County, WI | # 27 | 6 | 124.9 GWh |
| Sauk County, WI | # 26 | 1 | 131.0 GWh |
| Ashland County, WI | # 25 | 2 | 159.9 GWh |
| Waushara County, WI | # 24 | 1 | 183.4 GWh |
| Kenosha County, WI | # 23 | 5 | 204.5 GWh |
| Lincoln County, WI | # 22 | 5 | 223.0 GWh |
| Marinette County, WI | # 21 | 10 | 296.6 GWh |
| Lafayette County, WI | # 20 | 2 | 407.1 GWh |
| Iowa County, WI | # 19 | 3 | 455.2 GWh |
| Brown County, WI | # 18 | 8 | 522.9 GWh |
| Fond du Lac County, WI | # 17 | 9 | 529.0 GWh |
| Chippewa County, WI | # 16 | 11 | 553.1 GWh |
| Dodge County, WI | # 15 | 6 | 585.2 GWh |
| Grant County, WI | # 14 | 9 | 613.3 GWh |
| Winnebago County, WI | # 13 | 5 | 621.5 GWh |
| Wood County, WI | # 12 | 10 | 766.5 GWh |
| Dane County, WI | # 11 | 23 | 881.1 GWh |
| Buffalo County, WI | # 10 | 3 | 993.6 GWh |
| Jefferson County, WI | # 9 | 7 | 1.1 TWh |
| Sheboygan County, WI | # 8 | 5 | 2.9 TWh |
| Marathon County, WI | # 7 | 8 | 4.6 TWh |
| Outagamie County, WI | # 6 | 15 | 5.0 TWh |
| Columbia County, WI | # 5 | 6 | 5.4 TWh |
| Ozaukee County, WI | # 4 | 1 | 7.2 TWh |
| Rock County, WI | # 3 | 15 | 8.5 TWh |
| Manitowoc County, WI | # 2 | 7 | 10.7 TWh |
| Milwaukee County, WI | # 1 | 11 | 10.9 TWh |