Brownfield & Retired Power Plant Sites in Wisconsin
47 catalogued brownfield and retired-generation sites in Wisconsin, listed by former capacity. Each carries an existing utility-scale grid interconnection that a new datacenter load may be able to re-use.
| Site | Former use | Capacity | Retired | County |
|---|---|---|---|---|
| Pleasant Prairie | coal | 1,235 MW | 2018-04-01 | Kenosha |
| South Oak Creek | coal | 618 MW | 2024-05-01 | Milwaukee |
| Pulliam | coal | 580 MW | 2018-10-01 | Brown |
| Edgewater | coal | 420 MW | 2018-09-01 | Sheboygan |
| Genoa | coal | 346 MW | 2021-06-01 | Vernon |
| Port Washington Generating Station | coal | 340 MW | 2004-09-01 | Ozaukee |
| Rock River | gas | 319 MW | 2020-06-01 | Rock |
| Nelson Dewey Generating Station | coal | 227 MW | 2015-12-01 | Grant |
| Weston | gas | 218 MW | 2023-06-01 | Marathon |
| Alma | coal | 181 MW | 2014-10-01 | Buffalo |
| Superior Generation Energy Center | gas | 170 MW | — | Douglas |
| Consumer Operations LLC | coal | 116 MW | 2021-09-01 | Brown |
| Wheaton | oil | 106 MW | 2024-01-01 | Chippewa |
| Manitowoc | biomass | 96 MW | 2017-12-01 | Manitowoc |
| Blount Street | coal | 88 MW | 2011-12-01 | Dane |
| Wisconsin Rapids Pulp Mill | biomass | 72 MW | 2024-10-01 | Wood |
| Elk Mound | gas | 71 MW | — | Chippewa |
| Blackhawk | gas | 50 MW | 2010-04-01 | Rock |
| Sheepskin | gas | 42 MW | 2020-06-01 | Rock |
| Kimberly Mill | gas | 35 MW | 2009-01-01 | Outagamie |
| UW Madison Charter Street Plant | biomass | 22 MW | — | Dane |
| Bay Front | biomass | 20 MW | 2019-05-01 | Ashland |
| MMSD Jones Island Wastewater | gas | 18 MW | 2013-07-01 | Milwaukee |
| Northern States Flambeau | gas | 16 MW | 2017-12-01 | Price |
| Juneau | oil | 16 MW | 2017-03-01 | Juneau |
| Milwaukee County | coal | 11 MW | 2016-04-01 | Milwaukee |
| Barron | oil | 8 MW | 2024-11-01 | Barron |
| Port Edwards Mill | oil | 7 MW | 2013-03-01 | Wood |
| Danbury Diesel | oil | 7 MW | 2022-12-01 | Burnett |
| Domtar Paper Company Rothschild | gas | 6 MW | 2022-01-01 | Marathon |
| Rhinelander Mill | gas | 4 MW | 2012-12-01 | Oneida |
| Oneida Casino | oil | 4 MW | 2011-06-01 | Brown |
| Eagle River | oil | 4 MW | 2011-10-01 | Vilas |
| Seven Mile Creek LFG | gas | 4 MW | 2017-05-01 | Eau Claire |
| Winnebago County Landfill Gas | gas | 4 MW | 2024-03-01 | Winnebago |
| New Badger | hydro | 4 MW | 2012-05-01 | Outagamie |
| Lake Area Landfill Gas Recovery | gas | 3 MW | — | Washburn |
| Capitol Heat and Power | gas | 3 MW | 2011-05-01 | Dane |
| Beloit Coal Ash Landfill | landfill | 2 MW | — | — |
| College Avenue Landfill | landfill | 2 MW | — | — |
| Argyle | oil | 2 MW | 2003-09-01 | Lafayette |
| Old Badger | hydro | 2 MW | 2012-05-01 | Outagamie |
| Omega Hills Gas Recovery | gas | 1 MW | 2001-06-01 | Washington |
| WPPI Hartford DG | oil | 1 MW | 2020-04-01 | Washington |
| Sky Park Solar | landfill | 1 MW | — | — |
| MATC PV Evaluation Lab | landfill | 1 MW | — | — |
| Refuse Hideaway Landfill | superfund | 0 MW | — | — |
See all datacenter candidate sites in Wisconsin →
Dataset updated . Screening estimates derived from public data sources.
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This page shows a public slice of the GridCensus dataset for brownfield sites in Wisconsin. Pro and Enterprise plans unlock the full 164,098-site catalog, raw sub-scores, parcel ownership, interconnection-queue detail, saved searches, and programmatic API access.