Natural gasOperatingSPP

West Gardner

Natural gas power plant in Johnson County, Kansas. 408 MW of nameplate capacity across 4 generators, operated by Evergy Metro.

Also known as West Gardner Power Plant · EIA plant 7929

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Gardner Energy CenterOsawatomieOsawatomie SolarKansas River ProjectWest Gardner10 km
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6 plants within 30 km, from EIA coordinates.

Key facts

Capacity
408 MWNameplate
Generators
4 operatingEIA-860M, August 2026
Operating since
June 2003First generator online
Operator
Evergy MetroEIA operator ID 10000
Grid
SPPBalancing authority SWPP
Price nodes
4 SPP nodesResource nodes with prices
Location
Johnson County, KS38.7875, −94.9861
EIA plant ID
7929EIA plant page

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

How much power West Gardner produces

Free · EIA-923

Net generation, 2025

239 GWh

239,230 MWh, final

Capacity factor, 2025

Not reported

2024: 14.0%

January to July 2026

Not reported

Provisional. 0 of 7 months reported

Range, 2015 to 2025

9.9–502.0

GWh a year. Low 2017, high 2024

Annual net generation, GWhCapacity factor below each year
Annual net generation from EIA-923
YearNet generation, MWhCapacity factorMonths reported
2000Not reportedNot reported0 of 12
2001Not reportedNot reported0 of 12
2002Not reportedNot reported0 of 12
200373,082Not reported9 of 12
200412,738Not reported12 of 12
200558,527Not reported12 of 12
2006130,696Not reported12 of 12
200796,449Not reported12 of 12
200873,002Not reported12 of 12
200935,792Not reported12 of 12
201076,2212.4%12 of 12
201143,6691.4%12 of 12
201261,2161.9%12 of 12
201323,6430.7%12 of 12
201434,4441.1%12 of 12
201534,9741.1%12 of 12
201612,1660.4%12 of 12
20179,8560.3%12 of 12
201844,502Not reported12 of 12
2019134,6063.8%12 of 12
202081,3572.3%12 of 12
202155,5241.6%12 of 12
2022181,5805.1%12 of 12
2023262,6387.3%12 of 12
2024501,96714.0%12 of 12
2025239,230Not reported12 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 · SPP

Emissions

Free · EPA CAMPD

CO₂, 2025

168,474

US short tons. 2024: 342,525

SO₂, 2025

1

US short tons

NOx, 2025

44

US short tons

CO₂ per MWh, calculated

0.70 t

About 1,408 lb per MWh

4 of 4 EPA units reported CO₂ in 2025 (1, 2, 3, 4), matched to EIA plant 7929 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

No EIA cooling-water record for this plant in 2024.

Generators

Free · EIA-860M
GeneratorTechnologyNameplate MWOnline since
1Natural Gas Fired Combustion Turbine102.0June 2003
2Natural Gas Fired Combustion Turbine102.0June 2003
3Natural Gas Fired Combustion Turbine102.0June 2003
4Natural Gas Fired Combustion Turbine102.0June 2003

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 Evergy Metro 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 West Gardner

More plants operated by Evergy Metro

Questions about West Gardner

How much power does West Gardner produce?

West Gardner reported 239,230 MWh (239 GWh) of net generation in 2025.

Where is West Gardner?

West Gardner is in Johnson County, Kansas, at 38.7875, −94.9861. It is in the Southwest Power Pool balancing area (SWPP).

Who operates West Gardner?

EIA-860M for August 2026 lists Evergy Metro as the operator (EIA operator ID 10000). The operator is not always the owner.

When did West Gardner start operating?

Its first generator began operating in June 2003, according to EIA-860M.

Does InfraMap have power prices for West Gardner?

Yes. InfraMap has SPP day-ahead and real-time prices at 4 price nodes linked to West Gardner, 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
  • Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)

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