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Wheaton

Chippewa County, Wisconsin · EIA plant ID 4014 · Operator: Northern States Power Co - Minnesota
Natural gasNatural Gas Fired Combustion TurbineNatural Gas Internal Combustion Engine⛽ Dual-fuelMISOBA: MISO

×247 MW oil retired since 2020 (latest May 2025)

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Nameplate298MWSummer 270 MW
Generators6in service
Net generation—GWh12 mo
Capacity factor—no 923 generation in the last 12 months
Heat rate—Btu/kWhfossil units, electric fuel, HHV
First online2025Runs as rarely runs

Monthly net generation

EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
-100102030GWh200120042006200820102012201420162018202020222024

Capacity factor by year

Net MWh ÷ (summer MW × hours), primary-fuel units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
0%2%4%6%20052010201520202025

Heat rate by year

Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
12,50015,00017,50020,00022,50020052010201520202025
Annual data table
YearNet GWhCapacity factorHeat rate (Btu/kWh)
200176.52.5%14,951
200234.91.2%15,655
200379.22.6%15,216
200447.41.5%16,750
200554.11.8%21,225
200633.71.1%19,668
20071083.5%18,376
200814.30.5%22,088
200910.80.4%19,702
201041.61.6%15,389
201140.21.5%15,933
2012742.9%14,451
201321.30.8%17,282
201411.90.5%19,989
201518.80.7%16,985
2016130.5%16,990
201773.52.9%14,810
2018230.9%16,347
201915.40.8%18,116
2020341.7%15,120
2021135.86.6%14,719
202276.13.7%15,150
202330.91.5%—
202418.61.1%16,845
20258.41.3%16,785

Fuel capability

Gas-fired turbines (CT/GT/CA/CS) that can also burn liquid fuel. EIA-860 Schedule 3 for capability, EIA-923 for actual burn.
StatusLikely still dual fuel
Liquid fuel burned · 36 mo754,935 MMBtu
Last month with liquid burnMay 2025
Switch while operating—
Net summer MW on gas—
Net summer MW on oil—
Time gas → oilup to 1 h (EIA 1H)
Time oil → gasup to 1 h (EIA 1H)

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 IDTechnologyPrime moverNameplate MWSummer MWOnlineStatusPlanned retirementOEM / model
WHT08Natural Gas Fired Combustion TurbineGT249.1223.1Feb 2026Operating—coming soon
WHT09Natural Gas Internal Combustion EngineIC9.89.4Oct 2025Operating—coming soon
WHT10Natural Gas Internal Combustion EngineIC9.89.4Oct 2025Operating—coming soon
WHT11Natural Gas Internal Combustion EngineIC9.89.4Oct 2025Operating—coming soon
WHT12Natural Gas Internal Combustion EngineIC9.89.4Oct 2025Operating—coming soon
WHT13Natural Gas Internal Combustion EngineIC9.89.4Oct 2025Operating—coming soon
1Natural Gas Fired Combustion TurbineGT48.544Jan 1973Retired May 2025—coming soon
2Natural Gas Fired Combustion TurbineGT48.551Apr 1973Retired May 2025—coming soon
3Natural Gas Fired Combustion TurbineGT48.544Apr 1973Retired May 2025—coming soon
4Natural Gas Fired Combustion TurbineGT48.547Apr 1973Retired May 2025—coming soon
5Petroleum LiquidsGT53.152Jun 1973Retired Jun 2018—coming soon
6Petroleum LiquidsGT53.148Jun 1973Retired Jan 2024—coming soon

Owner / operator

Operator: Northern States Power Co - Minnesota. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
Northern States Power Co - Minnesota100.0%298 MW

Nearby plants

Within 80 km.
Elk Mound71 MW4.5 km
Dells12 MW6.4 km
Elk Mound (PV)3 MW7.9 km
Lake Hallie5 MW10.5 km
Chippewa Falls22 MW11.2 km
Lafayette DPC Solar1 MW12.9 km