Jeffrey Energy Center

25905 Jeffrey Rd., PO Box 40, St. Mary's, KS 66536

Plant Summary Information

Jeffrey Energy Center is ranked #15 out of 128 coal plants nationwide in terms of total annual net electricity generation.

Jeffrey Energy Center is comprised of 3 generators and generated 2.0 TWh during the 3-month period between December 2024 to March 2025.

Plant NameJeffrey Energy Center
Utility NameEvergy Kansas Central, Inc
LocationPottawatomie County, KS
Initial Operation DateJuly 1978
Last Update Mar 2025
Annual Generation 6.4 TWh
Annual Consumption 76.6 M MMBtu
Ranked #144 out of 12,288 Power Plants Nationwide
Ranked #15 out of 128 Subbituminous Coal Power Plants Nationwide
Ranked #2 out of 170 Kansas Power Plants
Ranked #1 out of 5 Kansas Subbituminous Coal Power Plants
Fuel Types Subbituminous Coal : 99.8%
Previous Operator Westar Energy Inc (2013 to 2018)
Evergy Kansas Central, Inc (2019 to 2024)

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Monthly Net Generation for Jeffrey Energy Center

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Jeffrey Energy Center Details

Summary Information
Plant NameJeffrey Energy Center (6068)
Plant Address25905 Jeffrey Rd., PO Box 40, St. Mary's, KS 66536
UtilityEvergy Kansas Central, Inc (22500)
Latitude, Longitude39.28645, -96.11723
Generation Dates on FileJan 2001 to Mar 2025
Initial Operation DateJuly 1978
Annual Generation 6.4 TWh
Fuel Types Subbituminous Coal : 99.8%
 
Federal Energy Regulatory Commission (FERC) Information
FERC Cogeneration StatusNo
FERC Small Power Producer StatusNo
FERC Exempt Wholesale Generator StatusNo
Regulatory Information
Regulatory StatusRegulated
NERC RegionMRO
Balancing AuthoritySouthwest Power Pool (SWPP)
NAICS CodeUtilities (22)
Sector Electric Utility (1)
Water SourceKansas River
Ash Impoundment Yes   Not Lined   Operating
Transmission / Distribution OwnerWestar Energy Inc (22500) KS
Grid Voltage 230.00 kV / 345.00 kV
Energy StorageNo

Generator 1 Details Operating July 1978

TechnologyConventional Steam Coal
Prime MoverSteam Turbine
OwnershipJointly Owned
RTO ISO LMP Node DesignationWR.JEC.1
RTO ISO Location Designation For Reporting Wholesale Sales DataWR.JEC.1
Nameplate Capacity720 MW
Nameplate Power Factor0.9
Summer Capacity725.2 MW
Winter Capacity725.2 MW
Minimum Load230 MW
Uprate/Derate Completed No
StatusOperating
First Operation DateJuly 1978
Combined Heat & Power No
Sector NameElectric Utility (1)
Energy SourceSubbituminous Coal
Startup SourceDistillate Fuel Oil
Solid Fuel Gasification No
Carbon Capture TechnologyNo
Time From Cold Shutdown To Full LoadOVER
Pulverized Coal TechnologyYes
Subcritical TechnologyYes
Multiple FuelsNo
Cofire FuelsNo
Switch Between Oil And Natural GasNo

Generator 2 Details Operating May 1980

TechnologyConventional Steam Coal
Prime MoverSteam Turbine
OwnershipJointly Owned
RTO ISO LMP Node DesignationWR.JEC.2
RTO ISO Location Designation For Reporting Wholesale Sales DataWR.JEC.2
Nameplate Capacity720 MW
Nameplate Power Factor0.9
Summer Capacity721.8 MW
Winter Capacity721.8 MW
Minimum Load220 MW
Uprate/Derate Completed No
StatusOperating
First Operation DateMay 1980
Combined Heat & Power No
Sector NameElectric Utility (1)
Energy SourceSubbituminous Coal
Startup SourceDistillate Fuel Oil
Solid Fuel Gasification No
Carbon Capture TechnologyNo
Time From Cold Shutdown To Full LoadOVER
Pulverized Coal TechnologyYes
Subcritical TechnologyYes
Multiple FuelsNo
Cofire FuelsNo
Switch Between Oil And Natural GasNo

Generator 3 Details Operating May 1983

TechnologyConventional Steam Coal
Prime MoverSteam Turbine
OwnershipJointly Owned
RTO ISO LMP Node DesignationWR.JEC.3
RTO ISO Location Designation For Reporting Wholesale Sales DataWR.JEC.3
Nameplate Capacity720 MW
Nameplate Power Factor0.9
Summer Capacity731.8 MW
Winter Capacity731.8 MW
Minimum Load220 MW
Uprate/Derate Completed No
StatusOperating
First Operation DateMay 1983
Combined Heat & Power No
Sector NameElectric Utility (1)
Energy SourceSubbituminous Coal
Startup SourceDistillate Fuel Oil
Solid Fuel Gasification No
Carbon Capture TechnologyNo
Time From Cold Shutdown To Full LoadOVER
Pulverized Coal TechnologyYes
Subcritical TechnologyYes
Multiple FuelsNo
Cofire FuelsNo
Switch Between Oil And Natural GasNo

Jeffrey Energy Center Plant Owners

Owner NameAddressGeneratorOwnership
Evergy Kansas South, Inc818 Kansas Avenue, Topeka, KS 66612Generator 120.00%
Evergy Kansas Central, Inc818 South Kansas Avenue, Topeka, KS 66601Generator 172.00%
Evergy Missouri West1200 Main St, Kansas City, MO 64141Generator 18.00%
Evergy Kansas South, Inc818 Kansas Avenue, Topeka, KS 66612Generator 220.00%
Evergy Kansas Central, Inc818 South Kansas Avenue, Topeka, KS 66601Generator 272.00%
Evergy Missouri West1200 Main St, Kansas City, MO 64141Generator 28.00%
Evergy Kansas South, Inc818 Kansas Avenue, Topeka, KS 66612Generator 320.00%
Evergy Kansas Central, Inc818 South Kansas Avenue, Topeka, KS 66601Generator 372.00%
Evergy Missouri West1200 Main St, Kansas City, MO 64141Generator 38.00%

Power Plants with Similar Net Generation

Power plants with a similar annual net generation from Subbituminous Coal.

RankPlant NamePlant LocationAnnual Generation
#5Martin LakeTatum, TX9.0 TWh
#6ColstripColstrip, MT9.0 TWh
#7J H CampbellWest Olive, MI8.9 TWh
#8Fayette Power ProjectLa Grange, TX7.6 TWh
#9Laramie River StationWheatland, WY7.6 TWh
#10SchererJuliette, GA7.5 TWh
#11Baldwin Energy ComplexBaldwin, IL7.0 TWh
#12Sherburne CountyBecker, MN6.9 TWh
#13Belle RiverChina Twp, MI7.5 TWh
#14Walter Scott Jr Energy CenterCouncil Bluffs, IA6.5 TWh
#16ShawneeWest Paducah, KY6.4 TWh
#17Gerald GentlemanSutherland, NE6.3 TWh
#18RockportRockport, IN6.6 TWh
#19Nebraska CityNebraska City, NE6.3 TWh
#20Elm Road Generating StationOak Creek, WI8.3 TWh
#21J K SpruceSan Antonio, TX6.0 TWh
#22LimestoneJewett, TX6.0 TWh
#23Comanche (CO)Pueblo, CO5.9 TWh
#24La CygneLa Cygne, KS5.7 TWh
#25SpringervilleSpringerville, AZ5.4 TWh

Nearby Power Plants

Below are closest 20 power plants surrounding Jeffrey Energy Center.

Plant NamePlant LocationAnnual GenerationDistance
AmericusEmporia, KS2.3 GWh50.8 mi
BurlingameBurlingame, KS11.8 MWh39.7 mi
Corvias - Fort Riley IIFort Riley, KS2.3 GWh39.9 mi
Flat Water Wind Farm LLCDu Bois, NE215.6 GWh50.4 mi
FreeState Crooked Post Solar ITopeka, KS3.6 GWh25.9 mi
FreeState Kiro Solar ISilver Lake, KS2.3 GWh21.5 mi
FreeState Stull Solar ILeCompton, KS3.0 GWh42.3 mi
HoltonCity of Holton, KS816.0 MWh24.3 mi
Irish Creek WindFrankfort, KS949.9 GWh32.9 mi
Kansas River ProjectLawrence, KS21.0 GWh52 mi
Lawrence Energy CenterLawrence, KS852.1 GWh49.4 mi
Marshall Wind FarmFrankfort, KS304.8 GWh31.5 mi
Munson-DS&OJunction City, KS2.3 GWh43.8 mi
Osage City SolarOsage City, KS164.0 MWh46.6 mi
OskaloosaOskaloosa, KS2.4 GWh43.3 mi
Reading Wind ProjectReading, KS676.4 GWh56.7 mi
Soldier Creek WindCorning, KS1.1 TWh26 mi
St. GeorgeSt. George, KS2.2 GWh18.5 mi
WashingtonWashington, KS35.0 MWh55.3 mi
Waste Management Rolling Meadows LFGTETopeka, KS47.4 GWh22.1 mi