Grantsburg Diesel
Oil power plant in Burnett County, Wisconsin. 6.4 MW of nameplate capacity across 5 generators, operated by Northwestern Wisconsin Elec Co.
Also known as EIA plant 4021
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 6.4 MWNameplate
- Generators
- 5 operatingEIA-860M, August 2026
- Operating since
- December 1963First generator online
- Operator
- Northwestern Wisconsin Elec CoEIA operator ID 13815
- Grid
- MISOBalancing authority MISO
- Price nodes
- 1 MISO nodeResource nodes with prices
- Location
- Burnett County, WI45.7792, −92.6780
- EIA plant ID
- 4021EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Grantsburg Diesel produces
Free · EIA-923Net generation, 2025
26 MWh
26 MWh, final
Capacity factor, 2025
0.0%
2024: 0.0%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
−306.0–65.0
MWh a year. Low 2020, high 2021
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 0 | Not reported | 12 of 12 |
| 2001 | Not reported | Not reported | 0 of 12 |
| 2002 | −30 | Not reported | 12 of 12 |
| 2003 | −28 | Not reported | 12 of 12 |
| 2004 | −10 | Not reported | 12 of 12 |
| 2005 | 73 | Not reported | 12 of 12 |
| 2006 | 153 | Not reported | 12 of 12 |
| 2007 | 142 | Not reported | 12 of 12 |
| 2008 | −246 | Not reported | 12 of 12 |
| 2009 | −194 | Not reported | 12 of 12 |
| 2010 | −149 | -0.3% | 12 of 12 |
| 2011 | −269 | -0.5% | 12 of 12 |
| 2012 | −183 | -0.3% | 12 of 12 |
| 2013 | −263 | -0.5% | 12 of 12 |
| 2014 | −264 | -0.5% | 12 of 12 |
| 2015 | −230 | -0.4% | 12 of 12 |
| 2016 | −185 | -0.3% | 12 of 12 |
| 2017 | −245 | -0.4% | 12 of 12 |
| 2018 | −300 | -0.5% | 12 of 12 |
| 2019 | −282 | -0.5% | 12 of 12 |
| 2020 | −306 | -0.5% | 12 of 12 |
| 2021 | 65 | 0.1% | 12 of 12 |
| 2022 | −2 | -0.0% | 12 of 12 |
| 2023 | 0 | 0.0% | 12 of 12 |
| 2024 | 0 | 0.0% | 12 of 12 |
| 2025 | 26 | 0.0% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free account · MISOEmissions
Free · EPA CAMPDNo EPA emissions units are linked to this plant.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 1A | Petroleum Liquids | 0.7 | March 1995 |
| 2 | Petroleum Liquids | 0.7 | December 1963 |
| 3 | Petroleum Liquids | 1.0 | November 1968 |
| 4 | Petroleum Liquids | 2.2 | September 1975 |
| 8 | Petroleum Liquids | 1.8 | June 2007 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Northwestern Wisconsin Elec Co as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Generation potential vs reported
Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.
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Power plants near Grantsburg Diesel
More plants operated by Northwestern Wisconsin Elec Co
Questions about Grantsburg Diesel
How much power does Grantsburg Diesel produce?
Grantsburg Diesel reported 26 MWh (26 MWh) of net generation in 2025, a 0.0% capacity factor on 6.4 MW of nameplate capacity.
Where is Grantsburg Diesel?
Grantsburg Diesel is in Burnett County, Wisconsin, at 45.7792, −92.6781. It is in the Midcontinent Independent Transmission System Operator, Inc.. balancing area (MISO).
Who operates Grantsburg Diesel?
EIA-860M for August 2026 lists Northwestern Wisconsin Elec Co as the operator (EIA operator ID 13815). The operator is not always the owner.
When did Grantsburg Diesel start operating?
Its first generator began operating in December 1963, according to EIA-860M.
Does InfraMap have power prices for Grantsburg Diesel?
Yes. InfraMap has MISO day-ahead and real-time prices at 1 price node linked to Grantsburg Diesel, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- MISO day-ahead and real-time prices; node and hub assignments as of 2026-10-05
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page