HydroOperatingMISO

Holcombe

Hydro power plant in Chippewa County, Wisconsin. 33.9 MW of nameplate capacity across 3 generators, operated by Northern States Power Co - Minnesota.

Also known as Holcombe Hydro Generating Station · EIA plant 4007

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CornellConrath DPC SolarThornappleJim FallsNew Auburn DPC SolarLadysmith DamHolcombe10 km
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6 plants within 27 km, from EIA coordinates.

Key facts

Capacity
33.9 MWNameplate
Generators
3 operatingEIA-860M, August 2026
Operating since
January 1950First generator online
Operator
Northern States Power Co - MinnesotaEIA operator ID 13781
Grid
MISOBalancing authority MISO
Price nodes
1 MISO nodeResource nodes with prices
Location
Chippewa County, WI45.2236, −91.1272
EIA plant ID
4007EIA plant page

Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.

How much power Holcombe produces

Free · EIA-923

Net generation, 2025

81.0 GWh

80,980 MWh, final

Capacity factor, 2025

27.3%

2024: 31.1%

January to July 2026

Not reported

Provisional. 0 of 7 months reported

Range, 2015 to 2025

81.0–150.3

GWh a year. Low 2025, high 2019

Annual net generation, GWhCapacity factor below each year
Annual net generation from EIA-923
YearNet generation, MWhCapacity factorMonths reported
200086,511Not reported12 of 12
2001103,192Not reported12 of 12
2002128,945Not reported12 of 12
200379,814Not reported12 of 12
200491,705Not reported12 of 12
200573,218Not reported12 of 12
200664,078Not reported12 of 12
200758,998Not reported12 of 12
200870,217Not reported12 of 12
200948,745Not reported12 of 12
2010101,61334.2%12 of 12
201194,00931.7%12 of 12
201258,10719.5%12 of 12
2013101,96734.3%12 of 12
2014121,95141.1%12 of 12
2015115,31038.8%12 of 12
2016141,16247.4%12 of 12
2017139,00646.8%12 of 12
2018110,82737.3%12 of 12
2019150,33150.6%12 of 12
2020139,22246.8%12 of 12
202193,19831.4%12 of 12
202294,55631.8%12 of 12
202393,55031.5%12 of 12
202492,68231.1%12 of 12
202580,98027.3%12 of 12
2026 (provisional, partial year)Not reportedNot reported0 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 · MISO

Emissions

Free · EPA CAMPD

No EPA emissions units are linked to this plant.

Water use

Free · EIA-923 cooling, USGS

No EIA cooling-water record for this plant in 2024. Plants without steam cooling, such as wind, solar and batteries, do not report cooling water.

Generators

Free · EIA-860M
GeneratorTechnologyNameplate MWOnline since
1Conventional Hydroelectric11.3January 1950
2Conventional Hydroelectric11.3January 1950
3Conventional Hydroelectric11.3January 1950

Ownership and offtake

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Ownership and offtake are part of Pro

Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Northern States Power Co - Minnesota as the operator, which is not always the owner.

Modeled data

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Analyst and MCP

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Power plants near Holcombe

More plants operated by Northern States Power Co - Minnesota

Questions about Holcombe

How much power does Holcombe produce?

Holcombe reported 80,980 MWh (81.0 GWh) of net generation in 2025, a 27.3% capacity factor on 33.9 MW of nameplate capacity.

Where is Holcombe?

Holcombe is in Chippewa County, Wisconsin, at 45.2236, −91.1272. It is in the Midcontinent Independent Transmission System Operator, Inc.. balancing area (MISO).

Who operates Holcombe?

EIA-860M for August 2026 lists Northern States Power Co - Minnesota as the operator (EIA operator ID 13781). The operator is not always the owner.

When did Holcombe start operating?

Its first generator began operating in January 1950, according to EIA-860M.

Does InfraMap have power prices for Holcombe?

Yes. InfraMap has MISO day-ahead and real-time prices at 1 price node linked to Holcombe, 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
  • Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)

Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page