Fox Energy Center
Natural gas power plant in Outagamie County, Wisconsin. 618.8 MW of nameplate capacity across 3 generators, operated by Wisconsin Public Service Corp.
Also known as EIA plant 56031
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Key facts
- Capacity
- 618.8 MWNameplate
- Generators
- 3 operatingEIA-860M, August 2026
- Operating since
- June 2005First generator online
- Operator
- Wisconsin Public Service CorpEIA operator ID 20860
- Grid
- MISOBalancing authority MISO
- Price nodes
- 6 MISO nodesResource nodes with prices
- Location
- Outagamie County, WI44.3204, −88.2089
- EIA plant ID
- 56031EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Fox produces
Free · EIA-923Net generation, 2025
3.57 TWh
3,572,215 MWh, final
Capacity factor, 2025
65.9%
2024: 82.0%
January to July 2026
2.30 TWh
Provisional
Range, 2016 to 2025
3.1–4.5
TWh a year. Low 2017, high 2020
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | Not reported | Not reported | 0 of 12 |
| 2002 | Not reported | Not reported | 0 of 12 |
| 2003 | Not reported | Not reported | 0 of 12 |
| 2004 | Not reported | Not reported | 0 of 12 |
| 2005 | 313,785 | Not reported | 12 of 12 |
| 2006 | 918,418 | Not reported | 12 of 12 |
| 2007 | 449,010 | Not reported | 12 of 12 |
| 2008 | 490,998 | Not reported | 8 of 12 |
| 2009 | 135,050 | Not reported | 4 of 12 |
| 2010 | 606,958 | 11.2% | 12 of 12 |
| 2011 | 1,580,886 | 29.1% | 12 of 12 |
| 2012 | 2,924,909 | 53.7% | 12 of 12 |
| 2013 | 1,752,201 | Not reported | 12 of 12 |
| 2014 | 1,579,023 | Not reported | 12 of 12 |
| 2015 | 3,311,285 | 66.2% | 11 of 12 |
| 2016 | 3,556,835 | 65.4% | 12 of 12 |
| 2017 | 3,116,451 | 57.5% | 12 of 12 |
| 2018 | 3,644,879 | 67.2% | 12 of 12 |
| 2019 | 4,311,102 | 79.5% | 12 of 12 |
| 2020 | 4,474,657 | 82.3% | 12 of 12 |
| 2021 | 4,165,517 | 76.8% | 12 of 12 |
| 2022 | 4,258,374 | 78.6% | 12 of 12 |
| 2023 | 4,346,913 | 80.2% | 12 of 12 |
| 2024 | 4,455,838 | 82.0% | 12 of 12 |
| 2025 | 3,572,215 | 65.9% | 12 of 12 |
| 2026 (provisional, partial year) | 2,300,599 | 73.1% | 7 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 CAMPDCO₂, 2025
1.48M
US short tons. 2024: 1.82M
SO₂, 2025
7
US short tons
NOx, 2025
104
US short tons
CO₂ per MWh, calculated
0.42 t
About 831 lb per MWh
2 of 2 EPA units reported CO₂ in 2025 (CTG-1, CTG-2), matched to EIA plant 56031 through the EPA–EIA crosswalk. The per-MWh rate is EPA CO₂ divided by EIA-923 net generation. The two reporting boundaries can differ.
Water use
Free · EIA-923 cooling, USGSWithdrawal, 2024
1,011
million gallons
Consumption, 2024
734
million gallons
Source
Heart of the Valley Metropolitan
Discharge, Reclaimed. Induced-draft tower
Watershed stress
Very low/none · 0.152
USGS SUI, HUC12 Apple Creek
12 of 12 cooling months report withdrawal. Reclaimed water or plant effluent; not tested. Blank volumes are unreported, not zero.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| CTG1 | Natural Gas Fired Combined Cycle | 198.9 | June 2006 |
| CTG2 | Natural Gas Fired Combined Cycle | 198.9 | June 2005 |
| STG | Natural Gas Fired Combined Cycle | 221.0 | June 2005 |
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 Wisconsin Public Service Corp 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 Fox
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Questions about Fox
How much power does Fox Energy Center produce?
Fox Energy Center reported 3,572,215 MWh (3.57 TWh) of net generation in 2025, a 65.9% capacity factor on 618.8 MW of nameplate capacity. From January to July 2026 it reported 2.30 TWh, which is provisional.
Where is Fox Energy Center?
Fox Energy Center is in Outagamie County, Wisconsin, at 44.3204, −88.2089. It is in the Midcontinent Independent Transmission System Operator, Inc.. balancing area (MISO).
Who operates Fox Energy Center?
EIA-860M for August 2026 lists Wisconsin Public Service Corp as the operator (EIA operator ID 20860). The operator is not always the owner.
When did Fox Energy Center start operating?
Its first generator began operating in June 2005, according to EIA-860M.
Does InfraMap have power prices for Fox Energy Center?
Yes. InfraMap has MISO day-ahead and real-time prices at 6 price nodes linked to Fox Energy Center, 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)
- EPA CAMPD annual emissions through the EPA–EIA crosswalk, 1995 to 2025
- MISO day-ahead and real-time prices; node and hub assignments as of 2026-10-05
- EIA-923 cooling water 2024 and the USGS surface water supply and use index, Water years 2010-2020 (Oct 2009 to Sep 2020), mean of monthly values
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page