Frederic Diesel
Polk County, Wisconsin · EIA plant ID 4020 · Operator: Northwestern Wisconsin Elec Co
Nameplate14MWSummer 14 MW
Generators9in service
Net generation0GWh12 mo to Dec 2025
Capacity factor0%gas/coal/oil units, summer MW
Heat rate—Btu/kWhfossil units, electric fuel, HHV
First online1948Runs as rarely runs
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), gas/coal/oil 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) |
|---|---|---|---|
| 2002 | -0.1 | -0.1% | — |
| 2003 | -0.1 | -0.1% | — |
| 2004 | -0.1 | -0.1% | — |
| 2005 | 0.2 | 0.2% | 19,801 |
| 2006 | -0 | -0.0% | — |
| 2007 | 0.3 | 0.2% | 18,764 |
| 2008 | -0.2 | -0.1% | — |
| 2009 | -0.3 | -0.3% | — |
| 2010 | -0.2 | -0.1% | — |
| 2011 | -0.1 | -0.1% | — |
| 2012 | -0.1 | -0.1% | — |
| 2013 | 0 | 0.0% | — |
| 2014 | -0.1 | -0.1% | — |
| 2015 | -0.1 | -0.1% | — |
| 2016 | -0.1 | -0.1% | — |
| 2017 | -0.1 | -0.1% | — |
| 2018 | -0.1 | -0.1% | — |
| 2019 | -0.1 | -0.1% | — |
| 2020 | -0.1 | -0.1% | — |
| 2021 | 0 | 0.0% | — |
| 2022 | -0 | 0.0% | — |
| 2023 | 0 | 0.0% | — |
| 2024 | 0 | 0.0% | — |
| 2025 | 0 | 0.0% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 10 | Petroleum Liquids | IC | 2.5 | 2.5 | Jul 2000 | Operating | — | coming soon |
| 2 | Petroleum Liquids | IC | 0.7 | 0.7 | Dec 1948 | Operating | — | coming soon |
| 3 | Petroleum Liquids | IC | 0.7 | 0.7 | Dec 1949 | Operating | — | coming soon |
| 4 | Petroleum Liquids | IC | 0.7 | 0.6 | Dec 1955 | Operating | — | coming soon |
| 5 | Petroleum Liquids | IC | 0.6 | 0.5 | Dec 1955 | Operating | — | coming soon |
| 6 | Petroleum Liquids | IC | 1.8 | 1.7 | Dec 1970 | Operating | — | coming soon |
| 7 | Petroleum Liquids | IC | 1.7 | 1.8 | Sep 1975 | Operating | — | coming soon |
| 8 | Petroleum Liquids | IC | 2.5 | 2.5 | Jul 2000 | Operating | — | coming soon |
| 9 | Petroleum Liquids | IC | 2.5 | 2.5 | Jul 2000 | Operating | — | coming soon |
Owner / operator
Operator: Northwestern Wisconsin Elec Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Northwestern Wisconsin Elec Co | 100.0% | 14 MW |
Nearby plants
Within 80 km.
| Luck | 3 MW | 4.9 km |
| Falun | — | 14.7 km |
| Georgetown (Polk Burnett) | 2 MW | 21.2 km |
| Grantsburg Diesel | 6 MW | 21.6 km |
| Sand Lake DPC Solar | 1 MW | 24.2 km |
| Viola | 3 MW | 24.6 km |