Biomass Power Plants in Wisconsin
Every operating biomass power plant in Wisconsin on EIA-860M for 2026-07: 19 plants, 79 generating units and 224 MW of nameplate capacity across 17 counties, most of it inside MISO.
As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m
- Plants
- 19
- 79 generating units
- Nameplate capacity
- 224 MW
- Counties
- 17
- Grid operator
- MISO
- covers most of these plants
Map of biomass power plants in Wisconsin
Every one of the 19 plants is drawn at the coordinate EIA files for it.
Loading map…
- Biomass · 19
List of biomass power plants in Wisconsin
Sort by any column. Capacity is nameplate, summed across every generating unit EIA lists at the site.
| Rothschild Biomass Cogen FacilityWood/Wood Waste Biomass | Wisconsin Electric Power Co | Marathon | 57.5 | 1 | 2013 | Operating |
| Bay FrontWood/Wood Waste Biomass | Northern States Power Co - Minnesota | Ashland | 47.2 | 2 | 1952 | Operating |
| Mosinee Mill2 technologies | Ahlstrom-Munksjo NA Specialty Solutions, LLC | Marathon | 23.4 | 5 | 1916 | Operating |
| Packaging of America Tomahawk Mill2 technologies | PCA-Tomahawk Mill | Lincoln | 18.7 | 5 | 1920 | Operating |
| Omega Hills Gas RecoveryLandfill Gas | WM Renewable Energy LLC | Washington | 12.8 | 4 | 1985 | Operating |
| Waxdale4 technologies | S.C. Johnson & Son, Inc. | Racine | 12.1 | 7 | 2003 | Operating |
| Metro Gas RecoveryLandfill Gas | WM Renewable Energy LLC | Milwaukee | 9.2 | 6 | 1985 | Operating |
| Pheasant Run Landfill Gas RecoveryLandfill Gas | WM Renewable Energy LLC | Kenosha | 8.8 | 11 | 1992 | Operating |
| Deertrack Park Gas RecoveryLandfill Gas | WM Renewable Energy LLC | Jefferson | 6.4 | 8 | 2006 | Operating |
| MMSD South Shore WastewaterOther Waste Biomass | Milwaukee Metro Sewerage Dist | Milwaukee | 5.1 | 5 | 2000 | Operating |
| RidgeviewLandfill Gas | Bio-Energy Partners | Manitowoc | 4.8 | 6 | 2002 | Operating |
| Timberline Trail Gas RecoveryLandfill Gas | WM Renewable Energy LLC | Rusk | 3.2 | 4 | 2006 | Operating |
| Viresco Turtle LakeOther Waste Biomass | Viresco Turtle Lake | Polk | 3.2 | 2 | 2013 | Operating |
| Ameresco JanesvilleLandfill Gas | AMERESCO Janesville LLC | Rock | 3 | 3 | 2004 | Out of service and NOT expected to return to service in next calendar year |
| Berlin Landfill GasLandfill Gas | WM Renewable Energy LLC | Green Lake | 2.4 | 3 | 2001 | Operating |
| Richland Center Renewable Energy LLCOther Waste Biomass | Richland Center Renewable Energy LLC | Richland | 1.8 | 2 | 2013 | Operating |
| Winnebago County Landfill GasLandfill Gas | Winnebago County - (WI) | Winnebago | 1.5 | 2 | 2000 | Out of service but expected to return to service in next calendar year |
| Dairyland WTE PlantOther Waste Biomass | Energy Systems Group LLC | Brown | 1.4 | 2 | 2012 | Out of service and NOT expected to return to service in next calendar year |
| Onalaska Campus Landfill BiogasLandfill Gas | Gundersen Lutheran Biogas I LLC | La Crosse | 1.1 | 1 | 2012 | Operating |
Largest biomass power plants in Wisconsin
- 1Rothschild Biomass Cogen FacilityMarathon County, Wisconsin57.5 MW
- 2Bay FrontAshland County, Wisconsin47.2 MW
- 3Mosinee MillMarathon County, Wisconsin23.4 MW
- 4Packaging of America Tomahawk MillLincoln County, Wisconsin18.7 MW
- 5Omega Hills Gas RecoveryWashington County, Wisconsin12.8 MW
- 6WaxdaleRacine County, Wisconsin12.1 MW
- 7Metro Gas RecoveryMilwaukee County, Wisconsin9.2 MW
- 8Pheasant Run Landfill Gas RecoveryKenosha County, Wisconsin8.8 MW
- 9Deertrack Park Gas RecoveryJefferson County, Wisconsin6.4 MW
- 10MMSD South Shore WastewaterMilwaukee County, Wisconsin5.1 MW
Biomass power plants by county in Wisconsin
The county EIA files against each plant. It is the fastest way to find the plant nearest a given town.
| County | Plants | Nameplate MW |
|---|---|---|
| Marathon | 2 | 80.9 |
| Ashland | 1 | 47.2 |
| Lincoln | 1 | 18.7 |
| Milwaukee | 2 | 14.3 |
| Washington | 1 | 12.8 |
| Racine | 1 | 12.1 |
| Kenosha | 1 | 8.8 |
| Jefferson | 1 | 6.4 |
| Manitowoc | 1 | 4.8 |
| Polk | 1 | 3.2 |
| Rusk | 1 | 3.2 |
| Rock | 1 | 3 |
| Green Lake | 1 | 2.4 |
| Richland | 1 | 1.8 |
| Winnebago | 1 | 1.5 |
| Brown | 1 | 1.4 |
| La Crosse | 1 | 1.1 |
Biomass Power Plants in Wisconsin: FAQ
- How many biomass power plants are in Wisconsin?
- 19, with 224 MW of nameplate capacity between them, spread over 17 counties. That is the EIA-860M operating count for 2026-07.
- Is there a map of Wisconsin biomass power plants?
- Yes — the map above. Each dot is one biomass power plant, sized by nameplate capacity and placed at the coordinates EIA files for it.
- Which is the largest biomass power plant in Wisconsin?
- Rothschild Biomass Cogen Facility, at 58 MW. The table is sorted largest first, so the rest follow it.
- Is there a biomass power plant near me in Wisconsin?
- The county roll-up below groups every plant by county, which is the quickest way to find the one closest to a given town.
- Which grid operator runs Wisconsin's biomass power plants?
- Most of them sit inside MISO, according to the balancing-authority code EIA files against each plant. Live conditions for that market are on this site.
- How current is this, and what is left out?
- EIA-860M for 2026-07. Wood and wood waste, landfill gas, municipal solid waste and other waste biomass. Plants below 1 MW are not surveyed by EIA and so are absent; retirements and additions after 2026-07 arrive with the next monthly release.