Home / Power plants / Wisconsin
Power Plants in Wisconsin
All 278 operable plants · EIA inventory, May 2026.
Total capacity
19.7 GW
26th largest of 51 states
Plants
278
276 in service
Largest plant
1,403 MW
Elm Road Generating Station
Capacity by fuel
44%
25%
15%
| Fuel | Capacity | Share | Plants |
|---|---|---|---|
| Natural gas | 8,583 MW | 43.5% | 41 |
| Coal | 4,964 MW | 25.2% | 7 |
| Solar | 2,875 MW | 14.6% | 115 |
| Nuclear | 1,311 MW | 6.6% | 1 |
| Wind | 823 MW | 4.2% | 12 |
| Other | 618 MW | 3.1% | 36 |
| Hydro | 519 MW | 2.6% | 61 |
| Battery storage | 30 MW | 0.2% | 5 |
Nameplate capacity — what the fleet could produce running flat out — not what it actually generated. A plant is filed under the fuel carrying most of its capacity. See what Wisconsin actually generated →
Largest plants in Wisconsin
| # | Plant | Fuel | Capacity | Online |
|---|---|---|---|---|
| 1 | Elm Road Generating StationMilwaukee County | Coal | 1,403 MW | 2010 |
| 2 | Point Beach Nuclear PlantManitowoc County | Nuclear | 1,311 MW | 1969 |
| 3 | Port Washington Generating StationOzaukee County | Natural gas | 1,230 MW | 2005 |
| 4 | Columbia (WI)Columbia County | Coal | 1,112 MW | 1975 |
| 5 | WestonMarathon County | Coal | 946 MW | 1981 |
| 6 | West Riverside Energy CenterRock County | Natural gas | 728 MW | 2020 |
| 7 | Riverside Energy CenterRock County | Natural gas | 675 MW | 2004 |
| 8 | South Oak CreekMilwaukee County | Coal | 642 MW | 1965 |
| 9 | Fox Energy CenterOutagamie County | Natural gas | 619 MW | 2005 |
| 10 | RockGen Energy CenterDane County | Natural gas | 561 MW | 2001 |
Wisconsin's generating fleet in context
Wisconsin's generating fleet holds 19.7 gigawatts of nameplate capacity as of May 2026, ranking 26th among the 51 regions. Natural gas carries the largest share at 43.5% of the state's capacity across 41 plants, followed by coal at 25.2% across 7 plants. Solar accounts for 14.6% with 115 installations, while nuclear contributes 6.6% from a single plant. Wind makes up 4.2%, hydro 2.6%, and other sources 3.1%, with battery storage providing just 0.2%.
The state's largest plant is Elm Road Generating Station, a coal facility with 1,403 megawatts in Milwaukee County. Point Beach Nuclear Plant ranks second with 1,311 megawatts, followed by Port Washington Generating Station, a natural gas plant with 1,230 megawatts in Ozaukee County. Columbia in Columbia County and Weston in Marathon County, both coal facilities, round out the five largest at 1,112 and 946 megawatts respectively.
The fleet spans a century of energy infrastructure. The oldest plant still listed, Kimberly Mill, came online in January 1927. The newest is Blount BESS, a battery storage facility that entered service in April 2026. Wisconsin operates 276 of its 278 tracked plants.
Written from the EIA figures on this page, covering data through May 2026.
Every plant in Wisconsin, by fuel
Natural gas41 plants · 8,583 MW
All US natural gas plants →| Plant | County | Capacity | Units | Online |
|---|---|---|---|---|
| Port Washington Generating Station | Ozaukee | 1,230 MW | 6 | 2005 |
| West Riverside Energy Center | Rock | 728 MW | 4 | 2020 |
| Riverside Energy Center | Rock | 675 MW | 3 | 2004 |
| Fox Energy Center | Outagamie | 619 MW | 3 | 2005 |
| RockGen Energy Center | Dane | 561 MW | 3 | 2001 |
| Germantown | Washington | 391 MW | 5 | 1978 |
| Concord | Jefferson | 382 MW | 4 | 1993 |
| Paris (WI) | Kenosha | 382 MW | 4 | 1995 |
| South Fond Du Lac | Fond Du Lac | 382 MW | 4 | 1993 |
| Alliant Energy Neenah | Winnebago | 371 MW | 2 | 2000 |
| Sheboygan Falls | Sheboygan | 347 MW | 2 | 2005 |
| Wheaton | Chippewa | 298 MW | 6 | 2025 |
| Whitewater Generating Station | Jefferson | 284 MW | 2 | 1997 |
| Valley (WI) | Milwaukee | 275 MW | 3 | 1968 |
| De Pere Energy Center | Brown | 192 MW | 1 | 1999 |
| West Marinette | Marinette | 187 MW | 3 | 1971 |
| West Campus Cogeneration Facility | Dane | 169 MW | 3 | 2005 |
| Weston RICE | Marathon | 132 MW | 7 | 2023 |
| Blount Street | Dane | 100 MW | 2 | 1957 |
| Pulliam | Brown | 91 MW | 1 | 2003 |
| West Marinette 34 | Marinette | 83 MW | 1 | 2000 |
| Elk Mound | Chippewa | 71 MW | 2 | 2001 |
| Combined Locks Energy Center | Outagamie | 67 MW | 2 | 2002 |
| Island Street Peaking Plant | Outagamie | 61 MW | 1 | 2004 |
| Marshfield Utilities Gas Plant | Wood | 60 MW | 1 | 2011 |
| Fitchburg | Dane | 58 MW | 2 | 1973 |
| Consumer Operations LLC | Brown | 48 MW | 2 | 1963 |
| Bay Front | Ashland | 47 MW | 2 | 1952 |
| Kaukauna Paper Mill | Outagamie | 45 MW | 4 | 1951 |
| Sycamore (WI) | Dane | 42 MW | 2 | 1967 |
| Georgia-Pacific Corp - Nekoosa Mill | Wood | 39 MW | 9 | 1950 |
| MMSD Jones Island Wastewater | Milwaukee | 31 MW | 4 | 1971 |
| Custer Energy Center | Manitowoc | 25 MW | 1 | 1999 |
| Rhinelander Mill | Oneida | 21 MW | 5 | 1951 |
| Cumberland (WI) | Barron | 21 MW | 8 | 1939 |
| Kaukauna Gas Turbine | Outagamie | 18 MW | 1 | 1969 |
| Arcadia Electric | Trempealeau | 17 MW | 10 | 1930 |
| Nine Springs | Dane | 16 MW | 1 | 1964 |
| UW Madison Charter Street Plant | Dane | 11 MW | 2 | 1965 |
| Stevens Point Mill | Portage | 7.6 MW | 1 | 2002 |
| Beloit Memorial Hospital Power Plant | Rock | 3.0 MW | 2 | 2000 |
Coal7 plants · 4,964 MW
All US coal plants →| Plant | County | Capacity | Units | Online |
|---|---|---|---|---|
| Elm Road Generating Station | Milwaukee | 1,403 MW | 2 | 2010 |
| Columbia (WI) | Columbia | 1,112 MW | 2 | 1975 |
| Weston | Marathon | 946 MW | 2 | 1981 |
| South Oak Creek | Milwaukee | 642 MW | 2 | 1965 |
| Edgewater | Sheboygan | 414 MW | 1 | 1985 |
| John P Madgett | Buffalo | 387 MW | 1 | 1979 |
| Biron Mill | Wood | 62 MW | 4 | 1947 |
Solar115 plants · 2,875 MW
All US solar plants →| Plant | County | Capacity | Units | Online |
|---|---|---|---|---|
| Paris Solar | Racine | 310 MW | 2 | 2024 |
| Grant County | Grant | 300 MW | 2 | 2024 |
| Darien Solar | Rock | 250 MW | 1 | 2025 |
| Wood County | Wood | 225 MW | 2 | 2022 |
| Badger Hollow I | Iowa | 150 MW | 1 | 2021 |
| Badger Hollow II | Iowa | 150 MW | 1 | 2023 |
| Onion River | Sheboygan | 150 MW | 1 | 2023 |
| Two Creeks Solar | Manitowoc | 150 MW | 1 | 2020 |
| Apple River Solar, LLC | Polk | 100 MW | 1 | 2025 |
| Point Beach Solar | Manitowoc | 100 MW | 1 | 2021 |
| Springfield Solar (WI) | Dodge | 100 MW | 1 | 2023 |
| Wautoma Solar | Waushara | 99 MW | 1 | 2023 |
| Crawfish River | Jefferson | 75 MW | 1 | 2023 |
| Paddock Solar | Rock | 65 MW | 1 | 2023 |
| Albany Solar (WI) | Rock | 50 MW | 1 | 2023 |
| Bear Creek (WI) | Richland | 50 MW | 1 | 2022 |
| Beaver Dam Solar | Dodge | 50 MW | 1 | 2023 |
| Cassville Solar | Grant | 50 MW | 1 | 2023 |
| North Rock | Rock | 50 MW | 1 | 2022 |
| Epic Verona | Dane | 46 MW | 20 | 2009 |
| O'Brien Solar Fields | Dane | 22 MW | 3 | 2021 |
| Dane County Solar LLC | Dane | 17 MW | 1 | 2023 |
| Portage Solar Plant | Columbia | 12 MW | 1 | 2023 |
| Dane County Airport Solar | Dane | 11 MW | 1 | 2020 |
| Adams PV Plant | Adams | 8.3 MW | 1 | 2023 |
| Hermsdorf Solar | Dane | 8.0 MW | 1 | 2022 |
| Bonduel Solar WI, LLC | Shawano | 7.5 MW | 1 | 2023 |
| Hodag Solar | Oneida | 7.5 MW | 1 | 2022 |
| Jackson Solar WI, LLC | Ozaukee | 7.5 MW | 1 | 2023 |
| Silver Lake Solar WI, LLC | Kenosha | 7.5 MW | 1 | 2023 |
| Spring Prairie Solar WI, LLC | Walworth | 7.5 MW | 1 | 2023 |
| Antigo Solar Partners, LLC | Langlade | 6.0 MW | 1 | 2025 |
| Antigo-Forrest Street Solar Project | Langlade | 6.0 MW | 1 | 2024 |
| Bristol Woods Solar WI, LLC | Kenosha | 6.0 MW | 1 | 2025 |
| Caledonia Solar WI, LLC | Racine | 6.0 MW | 1 | 2025 |
| La Grange Solar Partners, LLC | Walworth | 6.0 MW | 1 | 2025 |
| LaFayette Solar WI, LLC | Walworth | 6.0 MW | 1 | 2024 |
| Perch Solar WI, LLC | Winnebago | 6.0 MW | 1 | 2026 |
| Raymond Solar WI, LLC | Racine | 6.0 MW | 1 | 2025 |
| Spring Brook Solar WI, LLC | Walworth | 6.0 MW | 1 | 2025 |
| Strawberry Creek Solar WI, LLC | Kenosha | 6.0 MW | 1 | 2026 |
| Strix Solar | Dane | 6.0 MW | 1 | 2025 |
| Tyto Solar | Dane | 6.0 MW | 1 | 2024 |
| Middleton Airport Solar | Dane | 5.6 MW | 1 | 2020 |
| Arcadia Solar | Trempealeau | 5.0 MW | 1 | 2019 |
| Auburn Solar WI, LLC | Fond Du Lac | 5.0 MW | 1 | 2024 |
| Hackbarth Solar WI, LLC | Jefferson | 5.0 MW | 1 | 2024 |
| Lake Hallie | Chippewa | 5.0 MW | 1 | 2024 |
| Ledgeview | Fond Du Lac | 5.0 MW | 1 | 2024 |
| Rock LakeSolar WI, LLC | Jefferson | 5.0 MW | 1 | 2025 |
| Adams Road Solar | Racine | 4.0 MW | 1 | 2025 |
| Rice Lake Solar Array | Barron | 3.8 MW | 1 | 2021 |
| Barron Solar Array | Barron | 3.0 MW | 1 | 2021 |
| Fennimore Solar | Grant | 3.0 MW | 1 | 2019 |
| Lemonweir (Oak 1) | Juneau | 3.0 MW | 1 | 2023 |
| Shamrock Solar LLC | Jackson | 3.0 MW | 1 | 2021 |
| Stromland Solar | Buffalo | 3.0 MW | 1 | 2021 |
| Rice Lake II | Barron | 2.8 MW | 1 | 2024 |
| Blue Prairie Solar, LLC | Jackson | 2.5 MW | 1 | 2021 |
| Bridge Creek | Eau Claire | 2.5 MW | 1 | 2025 |
| Bright Future | St Croix | 2.5 MW | 1 | 2025 |
| Cumberland Solar | Barron | 2.5 MW | 1 | 2019 |
| Elk Mound (PV) | Chippewa | 2.5 MW | 1 | 2025 |
| Flambeau Solar Partners | Price | 2.5 MW | 1 | 2017 |
| Greenfield | La Crosse | 2.5 MW | 1 | 2025 |
| Hannibal | Taylor | 2.5 MW | 1 | 2025 |
| Luck | Polk | 2.5 MW | 1 | 2025 |
| New Auburn DPC Solar | Chippewa | 2.5 MW | 1 | 2018 |
| New Lisbon Solar | Juneau | 2.5 MW | 1 | 2019 |
| Next Generation | St Croix | 2.5 MW | 1 | 2025 |
| Viola | Burnett | 2.5 MW | 1 | 2025 |
| ATI | Milwaukee | 2.3 MW | 1 | 2020 |
| City of Milwaukee Landfill | Milwaukee | 2.3 MW | 1 | 2021 |
| Janesville Community Solar | Rock | 2.3 MW | 1 | 2025 |
| Jones Dairy | Jefferson | 2.3 MW | 1 | 2021 |
| Kohler Solar | Sheboygan | 2.3 MW | 1 | 2022 |
| Lannon Stone | Waukesha | 2.3 MW | 1 | 2021 |
| UW Kegonsa Customer Hosted Solar | Dane | 2.3 MW | 1 | 2025 |
| UW Parkside | Kenosha | 2.3 MW | 1 | 2020 |
| Washington County | Washington | 2.3 MW | 1 | 2020 |
| Harley-Davison Powertrain Operations | Waukesha | 2.2 MW | 1 | 2020 |
| Middleton Biogas Solar, LLC | Dane | 2.2 MW | 2 | 2022 |
| Warren DPC Solar | St Croix | 2.2 MW | 1 | 2017 |
| HQC Rock River Solar Power Gen Station | Rock | 2.1 MW | 1 | 2016 |
| Cashton Solar | Monroe | 2.0 MW | 1 | 2019 |
| Georgetown (Polk Burnett) | Polk | 2.0 MW | 1 | 2023 |
| Medford DPC Solar | Taylor | 2.0 MW | 1 | 2017 |
| Popple Creek (Clark 1) | Clark | 2.0 MW | 1 | 2024 |
| Spooner Solar Array | Washburn | 2.0 MW | 1 | 2019 |
| Trimbelle (Pierce Pepin) | Pierce | 2.0 MW | 1 | 2024 |
| Regal Ware | Washington | 1.9 MW | 1 | 2021 |
| Nortera Customer Hosted Solar | Fond du Lac | 1.6 MW | 1 | 2025 |
| Bluff Prairie (Vernon) | Vernon | 1.5 MW | 1 | 2023 |
| CREE | Racine | 1.5 MW | 1 | 2021 |
| Elroy Solar | Juneau | 1.5 MW | 1 | 2019 |
| Hay River (Dunn 1) | Dunn | 1.5 MW | 1 | 2024 |
| Strobus | Jackson | 1.5 MW | 1 | 2021 |
| Walleye (Dunn 2) | Dunn | 1.5 MW | 1 | 2024 |
| Webster Creek (Oak 2) | Juneau | 1.5 MW | 1 | 2023 |
| Whistling Winds DPC Solar | Juneau | 1.5 MW | 1 | 2017 |
| Wolf River (Chipewa 1) | Chippewa | 1.5 MW | 1 | 2024 |
| Ogema | Price | 1.4 MW | 1 | 2024 |
| Rock County Customer Hosted Solar | Rock | 1.4 MW | 1 | 2025 |
| IKEA Oak Creek Rooftop PV System | Milwaukee | 1.2 MW | 1 | 2018 |
| Liberty Pole DPC Solar | Vernon | 1.1 MW | 1 | 2017 |
| Conrath DPC Solar | Rusk | 1.0 MW | 1 | 2017 |
| Downsville DPC Solar | Dunn | 1.0 MW | 1 | 2017 |
| ENGIE 2020 ProjectCo-WI1 LLC | Fond Du Lac | 1.0 MW | 1 | 2021 |
| Fond du Lac Community Solar | Fond Du Lac | 1.0 MW | 1 | 2021 |
| Jefferson Solar Park | Jefferson | 1.0 MW | 1 | 2013 |
| Lafayette DPC Solar | Chippewa | 1.0 MW | 1 | 2017 |
| Mt. Hope DPC Solar | Grant | 1.0 MW | 1 | 2017 |
| Sand Lake DPC Solar | Polk | 1.0 MW | 1 | 2017 |
| Sauk DPC Solar | Vernon | 1.0 MW | 1 | 2017 |
| City of Sheboygan Solar | Sheboygan | 0.9 MW | 1 | 2022 |
Nuclear1 plant · 1,311 MW
All US nuclear plants →| Plant | County | Capacity | Units | Online |
|---|---|---|---|---|
| Point Beach Nuclear Plant | Manitowoc | 1,311 MW | 3 | 1969 |
Wind12 plants · 823 MW
All US wind plants →| Plant | County | Capacity | Units | Online |
|---|---|---|---|---|
| Glacier Hills | Columbia | 162 MW | 1 | 2011 |
| Blue Sky Green Field Wind Project | Fond Du Lac | 145 MW | 1 | 2008 |
| Forward Wind Energy Center | Dodge | 129 MW | 2 | 2008 |
| Quilt Block Wind Farm LLC | Lafayette | 98 MW | 1 | 2017 |
| Red Barn Energy | Grant | 92 MW | 1 | 2023 |
| Cedar Ridge | Fond Du Lac | 68 MW | 1 | 2008 |
| Butler Ridge | Dodge | 54 MW | 1 | 2009 |
| Montfort Wind Energy Center | Iowa | 30 MW | 1 | 2002 |
| Shirley Wind | Brown | 20 MW | 1 | 2010 |
| Wind Turbine | Kewaunee | 11 MW | 1 | 1999 |
| Galactic Wind | Dane | 9.9 MW | 1 | 2012 |
| Cashton Greens Wind Farm | Monroe | 5.0 MW | 1 | 2012 |
Other36 plants · 618 MW
All US other plants →| Plant | County | Capacity | Units | Online |
|---|---|---|---|---|
| French Island | La Crosse | 188 MW | 4 | 1940 |
| Manitowoc | Manitowoc | 117 MW | 3 | 1955 |
| Rothschild Biomass Cogen Facility | Marathon | 58 MW | 1 | 2013 |
| Diesel Generators | Dane | 54 MW | 1 | 2001 |
| Mosinee Mill | Marathon | 23 MW | 5 | 1951 |
| Packaging of America Tomahawk Mill | Lincoln | 19 MW | 5 | 1948 |
| Frederic Diesel | Polk | 14 MW | 9 | 1948 |
| Omega Hills Gas Recovery | Washington | 13 MW | 4 | 1985 |
| Waxdale | Racine | 12 MW | 7 | 2003 |
| Metro Gas Recovery | Milwaukee | 9.2 MW | 6 | 1985 |
| Pheasant Run Landfill Gas Recovery | Kenosha | 8.8 MW | 11 | 1992 |
| New Lisbon | Juneau | 8.3 MW | 4 | 1966 |
| Solon Diesel | Douglas | 8.0 MW | 8 | 1988 |
| Fennimore | Grant | 7.4 MW | 5 | 1952 |
| Gordon | Douglas | 7.0 MW | 4 | 1949 |
| Elroy | Juneau | 6.6 MW | 3 | 1973 |
| Deertrack Park Gas Recovery | Jefferson | 6.4 MW | 8 | 2006 |
| Grantsburg Diesel | Burnett | 6.4 MW | 5 | 1963 |
| Winter | Sawyer | 5.6 MW | 2 | 2002 |
| MMSD South Shore Wastewater | Milwaukee | 5.1 MW | 5 | 2000 |
| Washington Island | Door | 5.0 MW | 7 | 1945 |
| Ridgeview | Manitowoc | 4.8 MW | 6 | 2002 |
| Waupun Correctional Central Heating Plt | Dodge | 4.3 MW | 4 | 1951 |
| Cashton | Monroe | 3.5 MW | 3 | 1932 |
| Timberline Trail Gas Recovery | Rusk | 3.2 MW | 4 | 2006 |
| Viresco Turtle Lake | Polk | 3.2 MW | 2 | 2013 |
| Ameresco Janesville | Rock | 3.0 MW | 3 | 2004 |
| Berlin Landfill Gas | Green Lake | 2.4 MW | 3 | 2001 |
| Argyle | Lafayette | 2.3 MW | 2 | 1929 |
| Capitol Heat and Power | Dane | 2.0 MW | 2 | 2011 |
| Richland Center Renewable Energy LLC | Richland | 1.8 MW | 2 | 2013 |
| La Farge | Vernon | 1.5 MW | 1 | 1990 |
| Winnebago County Landfill Gas | Winnebago | 1.5 MW | 2 | 2000 |
| Dairyland WTE Plant | Brown | 1.4 MW | 2 | 2012 |
| Onalaska Campus Landfill Biogas | La Crosse | 1.1 MW | 1 | 2012 |
| Viola | Richland | 1.0 MW | 1 | 2002 |
Hydro61 plants · 519 MW
All US hydro plants →| Plant | County | Capacity | Units | Online |
|---|---|---|---|---|
| Jim Falls | Chippewa | 60 MW | 3 | 1988 |
| Wissota | Chippewa | 39 MW | 6 | 2017 |
| Cornell | Chippewa | 35 MW | 4 | 1976 |
| Holcombe | Chippewa | 34 MW | 3 | 1950 |
| Prairie Du Sac | Sauk | 33 MW | 8 | 1938 |
| St Croix Falls | Polk | 23 MW | 8 | 2010 |
| Chippewa Falls | Chippewa | 22 MW | 6 | 1928 |
| Petenwell | Juneau | 20 MW | 4 | 1949 |
| Flambeau Hydroelectric Station | Rusk | 19 MW | 3 | 1951 |
| Grandfather Falls | Lincoln | 17 MW | 2 | 1938 |
| Castle Rock | Adams | 15 MW | 5 | 1950 |
| Dells | Eau Claire | 12 MW | 5 | 2023 |
| Kilbourn | Columbia | 9.7 MW | 4 | 1935 |
| Twin Falls (WI) | Florence | 9.2 MW | 2 | 2016 |
| Little Quinnesec Falls Hydro Project | Marinette | 9.0 MW | 6 | 2000 |
| New Badger | Outagamie | 8.2 MW | 2 | 2014 |
| Wisconsin Rapids | Wood | 8.1 MW | 10 | 2003 |
| Big Falls | Rusk | 7.7 MW | 3 | 1993 |
| Du Bay | Portage | 7.2 MW | 4 | 1942 |
| High Falls (WI) | Marinette | 7.0 MW | 5 | 2010 |
| Port Edwards Mill | Wood | 6.7 MW | 11 | 1938 |
| Caldron Falls | Marinette | 6.4 MW | 2 | 2024 |
| Combined Locks | Outagamie | 6.2 MW | 2 | 1988 |
| Cedar Falls (WI) | Dunn | 6.0 MW | 3 | 2010 |
| Biron | Wood | 5.8 MW | 8 | 1996 |
| Menomonie | Dunn | 5.4 MW | 2 | 1958 |
| Wausau | Marathon | 5.4 MW | 3 | 2021 |
| Brule | Florence | 5.3 MW | 3 | 2019 |
| Whiting | Portage | 5.1 MW | 10 | 1963 |
| Kaukauna City Hydro | Outagamie | 4.8 MW | 2 | 1940 |
| Stevens Point | Portage | 4.8 MW | 6 | 2018 |
| Alexander | Lincoln | 4.2 MW | 3 | 2025 |
| Sandstone Rapids | Marinette | 3.8 MW | 2 | 2025 |
| Pine | Florence | 3.6 MW | 2 | 2022 |
| Johnson Falls | Marinette | 3.4 MW | 2 | 2023 |
| LAC Courte Oreilles Hydroelect | Sawyer | 3.4 MW | 3 | 1986 |
| Ladysmith Dam | Rusk | 3.4 MW | 3 | 1940 |
| Little Chute | Outagamie | 3.3 MW | 3 | 1948 |
| Tomahawk | Lincoln | 2.6 MW | 2 | 1938 |
| Apple River | St Croix | 2.4 MW | 3 | 2001 |
| Rapide Croche | Outagamie | 2.4 MW | 4 | 2026 |
| Merrill | Lincoln | 2.3 MW | 3 | 1984 |
| Appleton | Outagamie | 2.2 MW | 3 | 1980 |
| Kimberly Mill | Outagamie | 2.1 MW | 3 | 1927 |
| Park Mill | Marinette | 2.1 MW | 6 | 1946 |
| Oconto Falls Lower | Oconto | 2.0 MW | 2 | 1971 |
| Hat Rapids | Oneida | 1.7 MW | 3 | 1984 |
| Saxon Falls | Iron | 1.6 MW | 2 | 2013 |
| Flambeau Crowley Rapids Project | Price | 1.5 MW | 2 | 1930 |
| Arpin Dam | Sawyer | 1.4 MW | 3 | 1971 |
| Thornapple | Rusk | 1.4 MW | 2 | 1927 |
| Potato Rapids | Marinette | 1.3 MW | 3 | 2021 |
| Clam River Dam | Burnett | 1.2 MW | 3 | 1942 |
| Flambeau Lower Project | Price | 1.2 MW | 3 | 2023 |
| Trego | Washburn | 1.2 MW | 2 | 1927 |
| Domtar Paper Company Rothschild | Marathon | 1.1 MW | 2 | 2010 |
| Oconto Falls Upper | Oconto | 1.1 MW | 3 | 2018 |
| Danbury Dam | Burnett | 1.0 MW | 3 | 1927 |
| Stiles | Oconto | 1.0 MW | 2 | 1949 |
| White River (WI) | Ashland | 1.0 MW | 2 | 2007 |
| Barron | Barron | 0.1 MW | 1 | 2023 |
Battery storage5 plants · 30 MW
All US battery storage plants →| Plant | County | Capacity | Units | Online |
|---|---|---|---|---|
| Blount BESS | Dane | 7.0 MW | 1 | 2026 |
| Huiskamp BESS | Dane | 7.0 MW | 1 | 2026 |
| West Middleton BESS | Dane | 7.0 MW | 1 | 2026 |
| Portage Industrial Battery | Columbia | 5.0 MW | 1 | 2022 |
| Boaz Microgrid Battery | Richland | 3.6 MW | 1 | 2023 |
Sorted by nameplate capacity within each fuel. “Online” is the year the plant’s earliest surviving unit entered service.
Frequently asked questions
›How many power plants are there in Wisconsin?
Wisconsin has 278 operable power plants with a combined nameplate capacity of 19.7 GW, the 26th largest generating fleet of the 51 states and DC. 276 of them are currently in service.
›What is the largest power plant in Wisconsin?
Elm Road Generating Station in Milwaukee County, a coal plant with 1,403 MW of capacity across 2 generating units, first online in February 2010.
›What fuel do Wisconsin's power plants use?
Natural gas accounts for the largest share of Wisconsin's generating capacity — 8,583 MW, or 43.5% of the total, across 41 plants. Coal follows at 25.2%, Solar follows at 14.6%, Nuclear follows at 6.6%. Note this is capacity, not generation — what the fleet could produce, not what it did.
›What is the oldest power plant in Wisconsin?
Kimberly Mill is the oldest still operable, with its earliest unit entering service in January 1927. The most recent addition is Blount BESS, online since April 2026.