Grantsburg Diesel
Burnett County, Wisconsin · EIA plant ID 4021 · Operator: Northwestern Wisconsin Elec Co
Nameplate6MWSummer 6 MW
Generators5in service
Net generation0GWh12 mo to Dec 2025
Capacity factor0%gas/coal/oil units, summer MW
Heat rate4,989Btu/kWhfossil units, electric fuel, HHV
First online1963Runs 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 | -0.1% | — |
| 2003 | -0 | -0.1% | — |
| 2004 | -0 | -0.0% | — |
| 2005 | 0.1 | 0.2% | 15,891 |
| 2006 | 0.2 | 0.4% | 15,843 |
| 2007 | 0.1 | 0.3% | 23,852 |
| 2008 | -0.2 | -0.4% | — |
| 2009 | -0.2 | -0.4% | — |
| 2010 | -0.1 | -0.3% | — |
| 2011 | -0.3 | -0.5% | — |
| 2012 | -0.2 | -0.3% | — |
| 2013 | -0.3 | -0.5% | — |
| 2014 | -0.3 | -0.5% | — |
| 2015 | -0.2 | -0.4% | — |
| 2016 | -0.2 | -0.3% | — |
| 2017 | -0.2 | -0.4% | — |
| 2018 | -0.3 | -0.5% | — |
| 2019 | -0.3 | -0.5% | — |
| 2020 | -0.3 | -0.5% | — |
| 2021 | 0.1 | 0.1% | 10,108 |
| 2022 | -0 | 0.0% | — |
| 2023 | 0 | 0.0% | — |
| 2024 | 0 | 0.0% | — |
| 2025 | 0 | 0.1% | 4,989 |
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 |
|---|---|---|---|---|---|---|---|---|
| 1A | Petroleum Liquids | IC | 0.7 | 0.8 | Mar 1995 | Operating | — | coming soon |
| 2 | Petroleum Liquids | IC | 0.7 | 0.8 | Dec 1963 | Operating | — | coming soon |
| 3 | Petroleum Liquids | IC | 1 | 0.9 | Nov 1968 | Operating | — | coming soon |
| 4 | Petroleum Liquids | IC | 2.2 | 2 | Sep 1975 | Operating | — | coming soon |
| 8 | Petroleum Liquids | IC | 1.8 | 1.8 | Jun 2007 | 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% | 6 MW |
Nearby plants
Within 80 km.
| Falun | — | 11.4 km |
| Clam River Dam | 1 MW | 21.5 km |
| Frederic Diesel | 14 MW | 21.6 km |
| Rock Lake CT | 25 MW | 23 km |
| Luck | 3 MW | 23.9 km |
| Grand Casino Hinckley Solar | 3 MW | 30.9 km |