Jeffrey Energy Center

Jeffrey Energy Center — 2,160 MW coal plant, KS · Ask the Grid

Generation and physical site

EIA plant 6068 · Inventory for Aug 2026.

Reported operating nameplate by technology

Coal: 2,160 MW

Operating generators only. Battery power is in MW; stored energy is in MWh. These ratings do not establish a shared export limit.

Generator records (3)

EIA generator status and nameplate capacity for Jeffrey Energy Center
Generator	Technology	Status	Power (MW)	Energy (MWh)
1	Conventional Steam Coal	Operating	720	Unknown
2	Conventional Steam Coal	Operating	720	Unknown
3	Conventional Steam Coal	Operating	720	Unknown

Physical map location · OpenStreetMap: 39.29282, -96.11937
Filed location · EIA: 39.28645, -96.11723

Sources and observation dates

Inventory source: EIA-860M workbook (preliminary)
EIA reporting month: Aug 2026
EIA retrieved: Oct 10, 2026
OSM extract: Oct 9, 2026
OSM last mapped edit: Apr 12, 2024
Map prepared: Oct 10, 2026
Field verification: Not reported

Reporting month describes the inventory. Retrieval and map preparation describe processing; an OSM edit does not establish an in-service date.

EIA source inventory

Units and generators

Operating generator records and technology attributes reported through EIA-860.

Generator	Capacity	Technology	Operation	Status
1	720 MW 725.2 MW summer	Conventional Steam Coal Subbituminous Coal · ST	Jul 1978 Retirement: 2039	Operating
2	720 MW 721.8 MW summer	Conventional Steam Coal Subbituminous Coal · ST	May 1980	Operating
3	720 MW 731.8 MW summer	Conventional Steam Coal Subbituminous Coal · ST	May 1983 Retirement: 2030	Operating

Commercial, land, and environmental record

Source-backed project transactions, agreements, land records, permits, and environmental disclosures. Portfolio and adjacent-project facts remain explicitly scoped.

Transactions and agreements

Contract Execution

Jan 13, 1975

Original Agreement for the Construction and Ownership of Jeffrey Energy Center executed by Kansas Power & Light Company, Kansas Gas and Electric Company, Central Telephone & Utilities Company, and Missouri Public Service Company (later Evergy Missouri West).

Kansas Power & Light Company · Kansas Gas and Electric Company · Central Telephone & Utilities Company · Missouri Public Service Company

efis.psc.mo.gov

Contract Execution

Jun 1, 1978

Jeffrey Energy Center Operation Agreement executed by Kansas Power & Light (later Westar), Kansas Gas and Electric, Central Telephone & Utilities, and Missouri Public Service (later Evergy Missouri West), establishing the operating framework for the jointly owned facility.

Kansas Power & Light Company · Kansas Gas and Electric Company · Central Telephone & Utilities Company · Missouri Public Service Company

efis.psc.mo.gov

Contract Amendment

Oct 14, 1982

Amendment No. 3 to the Construction and Ownership Agreement executed, followed by Amendments 4–6 in 1988, 1991, and 1999 as the ownership and participating-utility structure evolved.

Westar Energy, Inc. · Kansas Gas and Electric Company · KCP&L Greater Missouri Operations Company

efis.psc.mo.gov

Ownership Acquisition

Apr 1, 2007

Westar Energy completed its purchase of Aquila, Inc.'s 8% leasehold interest in Jeffrey Energy Center for $22.3 million (per 2007 10-Q; 2007 10-K cites $25.8 million). Westar assumed the related lease obligations of approximately $98.5–$118.5 million with lease expiration January 3, 2019. This increased Westar's total interest to 92%.

$22.3MWestar Energy, Inc. · Aquila, Inc.

investors.evergy.com

Regulatory Settlement

2010

Westar settled a Department of Justice lawsuit filed on behalf of the EPA. The settlement required installation of a selective catalytic reduction (SCR) system on one Jeffrey Energy Center unit by end of 2014 (estimated cost approximately $230 million) and less-expensive NOx-reduction equipment on the other two units, also planned for completion in 2014.

$230.0MWestar Energy, Inc. · U.S. Environmental Protection Agency · Department of Justice

sec.gov

Related parties and identifiers

Parties, market resources, and identifiers tied to this asset, with owner, operator, developer, EPC, compliance provider, and interconnecting entity roles kept separate.

Parties and identifiers

OrganizationRoleBasis

Reporting portfolio

EIA reporting entity

Evergy Kansas Central, Inc

Entity 22500

Operating portfolio

16 plants

3 states

Reported capacity

4,748.6 MW

Conventional Steam Coal · Natural Gas Fired Combustion Turbine · Onshore Wind Turbine

Largest reported plants in this portfolio
Largest reported plants	Capacity	State
Jeffrey Energy CenterCurrent	2,160 MW	KS
Emporia Energy Center	730.2 MW	KS
Lawrence Energy Center	517 MW	KS
Spring Creek Energy Center	346 MW	OK
Hutchinson Energy Center	342.6 MW	KS
Western Plains Wind Farm	280.6 MW	KS
Persimmon Creek Wind Farm 1, LLC	198.6 MW	OK
Central Plains Wind Farm	99 MW	KS

Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.

View full reporting portfolio

Timeline and sources

Project milestones and public references behind the asset profile.

Project timeline

Jan 13, 1975
Jan 13, 1975
Original Construction and Ownership Agreementefis.psc.mo...
Original Agreement for the Construction and Ownership of Jeffrey Energy Center executed by Kansas Power & Light Company, Kansas Gas and Electric Company, Central Telephone & Utilities Company, and Missouri Public Service Company (later Evergy Missouri West).
Jun 1, 1978
Jun 1, 1978
Operations Agreement Executedefis.psc.mo...
Jeffrey Energy Center Operation Agreement executed by Kansas Power & Light (later Westar), Kansas Gas and Electric, Central Telephone & Utilities, and Missouri Public Service (later Evergy Missouri West), establishing the operating framework for the jointly owned facility.
Jul 1978
Jul 1978
Generator enters operationEIA-860
EIA-860 lists generator 1 with this operating date.
View 8 more milestonesHide 8 milestones
1. May 1980
  May 1980
  Generator enters operationEIA-860
  EIA-860 lists generator 2 with this operating date.
2. Oct 14, 1982
  Oct 14, 1982
2030
2030
Unit 2 Potential Retirement/Conversion (2030, Regulatory-Contingent)newsroom.ev...
Jeffrey Energy Center Unit 2 has a potential retirement in 2030 under regulatory review. Evergy's 2023 IRP announcement identifies Unit 2 as subject to potential earlier retirement if EPA regulations on NAAQS or Regional Haze tighten, requiring expensive SCR retrofits. An announced conversion to natural gas may also occur beginning 2030. Final timing remains contingent on future federal and state regulatory developments.
2030
2030
Unit 3 Planned Retirementeia.gov
Jeffrey Energy Center Unit 3 (731.8 MW summer capacity) is planned for retirement in 2030 per EIA May 2026 planned-retirement table. Evergy's 2023 planning announcement notes that Unit 3 is one of the largest coal units not equipped with selective catalytic reduction systems.
2039
2039
Unit 1 Planned Retirementeia.gov
Jeffrey Energy Center Unit 1 (725.2 MW summer capacity) is planned for retirement in 2039 per EIA May 2026 planned-retirement table.

Sources

PublisherReferenceType

U.S. Energy Information AdministrationEIA-860 generator inventoryFederal registry

U.S. Energy Information AdministrationEIA-923 generation filingsFederal filing

gevernova.comgevernova.compublic_source

Common questions about Jeffrey Energy Center

Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.

How big is Jeffrey Energy Center?

Jeffrey Energy Center reports 2,160 MW coal of operating nameplate capacity. These technology ratings do not establish a common export limit. Source: EIA Aug 2026.

What kind of plant is Jeffrey Energy Center?

Jeffrey Energy Center is a Conventional Steam Coal facility in Pottawatomie County, KS, participating in the SPP market.

Where is Jeffrey Energy Center located?

Jeffrey Energy Center is in Pottawatomie County, KS, inside the SPP balancing area.

Who operates Jeffrey Energy Center?

Jeffrey Energy Center is operated by Evergy Kansas Central, Inc according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.

How much electricity does Jeffrey Energy Center generate?

Jeffrey Energy Center reported 8,344.4 GWh over the twelve months to 2026-07. Figures are net generation as filed to EIA-923.

How does Jeffrey Energy Center compare to other plants?

By capacity, Jeffrey Energy Center ranks #16 of 205 operating plants of the same technology nationally. It ranks #1 of 5 in KS.

Co-located assets

Plants within 25 km, nearest first, regardless of technology. Proximity is straight-line distance between mapped plant coordinates; it does not by itself establish a shared point of interconnection.

Public Works GenerationPetroleum LiquidsPetroleum Liquids3 MW18 km WamegoNatural Gas Internal Combustion Engine, Petroleum LiquidsNatural Gas Internal Combustion Engine, Petroleum Liquids24 MW19 km

Overview

Infrastructure record

Jeffrey Energy Center

Overview

Infrastructure record

Explore related directories

Explore related directories

Structured profile

Generation and physical site

Reported operating nameplate by technology

Related assets

Iatan

La Cygne

Nebraska City

Hawthorn

Laramie River Station

Lawrence Energy Center

Units and generators

Performance

Peer context

Monthly generation

Grid and market context

Nearby substations

Commercial, land, and environmental record

Transactions and agreements

Related parties and identifiers

Parties and identifiers

Reporting portfolio

Timeline and sources

Project timeline

Sources

Common questions about Jeffrey Energy Center

How big is Jeffrey Energy Center?

What kind of plant is Jeffrey Energy Center?

Where is Jeffrey Energy Center located?

Who operates Jeffrey Energy Center?

How much electricity does Jeffrey Energy Center generate?

How does Jeffrey Energy Center compare to other plants?

Co-located assets