Rothschild Biomass Cogen Facility
Marathon County, Wisconsin · EIA plant ID 58124 · Operator: Wisconsin Electric Power Co
Nameplate58MWSummer 47 MW
Generators1in service
Net generation166GWh12 mo to Dec 2025
Capacity factor38%other units, summer MW
Heat rate6,649Btu/kWhfossil units, electric fuel, HHV
First online2013
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), other units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2013 | 9.7 | 9.3% | — |
| 2014 | 66.6 | 13.3% | 17,535 |
| 2015 | 53.6 | 12.2% | — |
| 2016 | 103.1 | 23.3% | 8,759 |
| 2017 | 108 | 24.3% | 7,154 |
| 2018 | 127 | 31.5% | 6,887 |
| 2019 | 99.2 | 24.2% | 8,807 |
| 2020 | 68.3 | 15.8% | 9,321 |
| 2021 | 113.1 | 27.6% | 7,349 |
| 2022 | 173.1 | 40.2% | 6,800 |
| 2023 | 143.2 | 33.7% | 6,948 |
| 2024 | 152.8 | 36.4% | 6,974 |
| 2025 | 165.6 | 38.4% | 6,649 |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| 1 | Wood/Wood Waste Biomass | ST | 57.5 | 46.6 | Nov 2013 | Operating | — | coming soon |
Owner / operator
Operator: Wisconsin Electric Power Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Wisconsin Electric Power Co | 100.0% | 58 MW |
Nearby plants
Within 80 km.
| Domtar Paper Company Rothschild | 1 MW | 0.2 km |
| Weston | 946 MW | 3.6 km |
| Weston RICE | 132 MW | 4 km |
| Wausau | 5 MW | 7.8 km |
| Mosinee Mill | 23 MW | 12.1 km |
| Fiber Recovery, Inc. | retired | 19.2 km |