Directory of Power Plants in Wisconsin
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Sycamore (WI) | Madison Gas & Electric Co | Madison, WI | Midcontinent Independent System Operator, Inc. (MISO) | 19.0 MWh | Nov 1967 | Dec 2024 | Natural Gas |
| Sauk DPC Solar | SoCore Energy LLC | Wonewoc, WI | Midcontinent Independent System Operator, Inc. (MISO) | 1.5 GWh | Dec 2016 | Dec 2024 | Solar |
| Sand Lake DPC Solar | SoCore Energy LLC | Centuria, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.1 GWh | Oct 2017 | Dec 2024 | Solar |
| Silver Lake Solar WI, LLC | Wisconsin Electric Power Co | Salem, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.1 GWh | Nov 2023 | May 2024 | Solar |
| Strobus | Greenbacker Renewable Energy Corporation | Merrillan, WI | Midcontinent Independent System Operator, Inc. (MISO) | 3.0 GWh | Aug 2021 | Dec 2024 | Solar |
| Spooner Solar Array | AEP Onsite Partners, LLC | Spooner, WI | Midcontinent Independent System Operator, Inc. (MISO) | 3.6 GWh | May 2019 | Dec 2024 | Solar |
| Spring Prairie Solar WI, LLC | Wisconsin Electric Power Co | Burlington, WI | Midcontinent Independent System Operator, Inc. (MISO) | 4.0 GWh | Nov 2023 | May 2024 | Solar |
| Shamrock Solar LLC | Greenbacker Renewable Energy Corporation | Black River Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 5.3 GWh | Nov 2021 | Dec 2024 | Solar |
| South Fond Du Lac | Wisconsin Power & Light Co | Fond du Lac, WI | Midcontinent Independent System Operator, Inc. (MISO) | 5.4 GWh | Apr 1993 | Dec 2024 | Natural Gas : 98.0% Distillate Fuel Oil : 2.0% |
| Stiles | Oconto Electric Cooperative | Oconto Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 5.6 GWh | Feb 1949 | Dec 2024 | Water |
| Stromland Solar | Greenbacker Renewable Energy Corporation | Cochrane, WI | Midcontinent Independent System Operator, Inc. (MISO) | 6.0 GWh | Nov 2021 | Dec 2024 | Solar |
| Saxon Falls | Northern States Power Co - Minnesota | Saxon, WI | Midcontinent Independent System Operator, Inc. (MISO) | 8.0 GWh | Dec 1912 | 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 |
| Stevens Point Mill | Pixelle Specialty Solution, LLC | Stevens Point, WI | Midcontinent Independent System Operator, Inc. (MISO) | 12.7 GWh | Jan 2002 | Dec 2024 | Natural Gas |
| Stevens Point | Consolidated Water Power Co | Stevens Point, WI | Midcontinent Independent System Operator, Inc. (MISO) | 28.5 GWh | Dec 1917 | Dec 2024 | Water |
| Shirley Wind | Duke Energy Renewables Services | Denmark, WI | Midcontinent Independent System Operator, Inc. (MISO) | 59.5 GWh | Oct 2010 | Dec 2024 | Wind |
| 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 |
| Springfield Solar (WI) | Wisconsin Power & Light Co | Lomira, WI | Midcontinent Independent System Operator, Inc. (MISO) | 203.6 GWh | Nov 2023 | Dec 2025 | Solar |
| Sheboygan Falls | Wisconsin Power & Light Co | Sheboygan, WI | Midcontinent Independent System Operator, Inc. (MISO) | 642.5 GWh | May 2005 | Dec 2024 | Natural Gas |
| South Oak Creek | Wisconsin Electric Power Co | Oak Creek, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.1 TWh | Nov 1959 | Dec 2025 | Subbituminous Coal : 99.6% |
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 |