CoalOperatingSPP

Holcomb

Coal power plant in Finney County, Kansas. 348.7 MW of nameplate capacity across 1 generator, operated by Sunflower Electric Power Corp.

Also known as Holcomb Station · EIA plant 108

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6 plants within 53 km, from EIA coordinates.

Key facts

Capacity
348.7 MWNameplate
Generators
1 operatingEIA-860M, August 2026
Operating since
August 1983First generator online
Operator
Sunflower Electric Power CorpEIA operator ID 18315
Grid
SPPBalancing authority SWPP
Price nodes
1 SPP nodeResource nodes with prices
Location
Finney County, KS37.9308, −100.9725
EIA plant ID
108EIA plant page

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

How much power Holcomb produces

Free · EIA-923

Net generation, 2025

1.84 TWh

1,837,470 MWh, final

Capacity factor, 2025

60.2%

2024: 37.8%

January to July 2026

615 GWh

Provisional

Range, 2015 to 2025

1.0–1.8

TWh a year. Low 2017, high 2025

Annual net generation, TWhCapacity factor below each year
Annual net generation from EIA-923
YearNet generation, MWhCapacity factorMonths reported
20002,464,502Not reported12 of 12
20012,548,115Not reported12 of 12
20022,454,689Not reported12 of 12
20032,570,134Not reported12 of 12
20042,596,603Not reported12 of 12
20052,684,906Not reported12 of 12
20062,384,975Not reported12 of 12
20072,858,418Not reported12 of 12
20082,782,707Not reported12 of 12
20092,655,821Not reported12 of 12
20102,632,93686.2%12 of 12
20112,735,78489.6%12 of 12
20121,967,70264.2%12 of 12
20132,166,07770.9%12 of 12
20141,981,86264.9%12 of 12
20151,443,46547.3%12 of 12
20161,594,50252.1%12 of 12
20171,006,10332.9%12 of 12
20181,472,21548.2%12 of 12
20191,569,54851.4%12 of 12
20201,448,23447.3%12 of 12
20211,599,57152.4%12 of 12
20221,663,20254.4%12 of 12
20231,584,63051.9%12 of 12
20241,159,00237.8%12 of 12
20251,837,47060.2%12 of 12
2026 (provisional, partial year)615,06334.7%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 · SPP

Emissions

Free · EPA CAMPD

CO₂, 2025

2.03M

US short tons. 2024: 1.32M

SO₂, 2025

1,327

US short tons

NOx, 2025

1,846

US short tons

CO₂ per MWh, calculated

1.11 t

About 2,211 lb per MWh

1 of 1 EPA units reported CO₂ in 2025 (SGU1), matched to EIA plant 108 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, USGS

Withdrawal, 2024

650

million gallons

Consumption, 2024

650

million gallons

Source

Wells

Ground, Fresh. Induced-draft tower

Watershed stress

Moderate · 0.430

USGS SUI, HUC12 Finney County State Game Refuge-Arkansas River

12 of 12 cooling months report withdrawal. Groundwater user; SUI describes surface water and is context only. Blank volumes are unreported, not zero.

Generators

Free · EIA-860M
GeneratorTechnologyNameplate MWOnline since
1Conventional Steam Coal348.7August 1983

Ownership and offtake

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Pro

Ownership and offtake are part of Pro

Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Sunflower Electric Power Corp as the operator, which is not always the owner.

Modeled data

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Pro adds modeled values for this plant. Everything above stays free.

Modeled

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 Holcomb

More plants operated by Sunflower Electric Power Corp

Questions about Holcomb

How much power does Holcomb produce?

Holcomb reported 1,837,470 MWh (1.84 TWh) of net generation in 2025, a 60.2% capacity factor on 348.7 MW of nameplate capacity. From January to July 2026 it reported 615 GWh, which is provisional.

Where is Holcomb?

Holcomb is in Finney County, Kansas, at 37.9308, −100.9725. It is in the Southwest Power Pool balancing area (SWPP).

Who operates Holcomb?

EIA-860M for August 2026 lists Sunflower Electric Power Corp as the operator (EIA operator ID 18315). The operator is not always the owner.

When did Holcomb start operating?

Its first generator began operating in August 1983, according to EIA-860M.

Does InfraMap have power prices for Holcomb?

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

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