How big is Clifty Creek?

Clifty Creek has a reported capacity of 1,303.8 MW. Source: EIA Form 860.

What kind of plant is Clifty Creek?

Clifty Creek is a Conventional Steam Coal facility in Jefferson County, IN, participating in the PJM market.

Where is Clifty Creek located?

Clifty Creek is in Jefferson County, IN, inside the PJM balancing area.

Who operates Clifty Creek?

Clifty Creek is operated by Indiana-Kentucky Electric Corp according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.

How much electricity does Clifty Creek generate?

Clifty Creek reported 6,014.5 GWh over the twelve months to 2026-04. Figures are net generation as filed to EIA-923.

Where does Clifty Creek connect to the grid?

Clifty Creek on the Indiana-Kentucky Electric Corp system.

How does Clifty Creek compare to other plants?

By capacity, Clifty Creek ranks #56 of 206 operating plants of the same technology nationally. It ranks #4 of 11 in IN.

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Conventional Steam CoalPJM · Jefferson County

Clifty Creek

Indiana-Kentucky Electric Corporation (IKEC) · Jefferson County · PJM

Clifty Creek is a coal-fired power facility with 1,303.8 MW of EIA-reported nameplate capacity in Jefferson County, Indiana, registered as EIA Plant ID 983. Indiana-Kentucky Electric Corp is the registered plant entity or operator. At the time it began operation, Clifty Creek Station and its sister plant, Kyger Creek Station, were described as the largest power plants ever built by private industry.

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plant:plant-983

Ask about Clifty Creek

Investigate technology, capacity, output, price behavior, ownership, and related facilities using this profile plus current grid data.

Overview

Key fields

Reported capacity: 1,303.8 MW
EIA-reported nameplate capacity; other nameplate and seasonal ratings may differ.
Technology: Conventional Steam Coal
Primary generation technology.
Registry anchor: Plant 983
Indiana-Kentucky Electric Corp · Jefferson County · PJM
Operating status: Operating
Clifty Creek is currently operating; a closure or retirement is listed for January 11, 2022.

Profile

Operating status: Clifty Creek is currently operating; a closure or retirement is listed for January 11, 2022.
Grid role: Dispatchable generation serving the sponsoring companies and their customers, with a reliability and availability role.
Context: At the time it began operation, Clifty Creek Station and its sister plant, Kyger Creek Station, were described as the largest power plants ever built by private industry.
Physical build: Six pulverized-coal-fired steam-electric generating units, each consisting of one Babcock & Wilcox boiler and one General Electric steam-turbine generator. The boilers are replicate natural-circulation, balanced-draft, wet-bottom, open-pass, single-reheat units; the GE turbine-generators are cross-compound units rated at approximately 217 MWe each. Total installed capacity is approximately 1,302 MW.

Structured profile

Reported capacity: 1,303.8 MW
Conventional Steam Coal
Operating status: operating
Clifty Creek is currently operating; a closure or retirement is listed for January 11, 2022.
Retirement: January 11, 2022
Clifty Creek is currently operating; a closure or retirement is listed for January 11, 2022.
Location: Jefferson County
PJM
Operator

Units and generators

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

Generator	Capacity	Technology	Operation	Status
1	217.3 MW 195.5 MW summer	Conventional Steam Coal Bituminous Coal · ST	Feb 1955	Operating
2	217.3 MW 195.5 MW summer	Conventional Steam Coal Bituminous Coal · ST	May 1955	Operating
3	217.3 MW 195.5 MW summer	Conventional Steam Coal Bituminous Coal · ST	Jul 1955	Operating
4	217.3 MW 195.5 MW summer

Performance

Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.

Peer context

Technology capacity: 1,303.8 MW
National rank: #56
IN rank: #4

Monthly generation

Download CSV

Latest 12 months

6.01 TWh

Reported net generation

Latest report

Apr 2026

EIA-923 monthly filing

2025 capacity factor

50.6%

Grid and market context

Deterministic links to ERCOT market resources, price records, outage disclosures, queue records, and nearby infrastructure. Candidate joins remain labeled until corroborated.

Nearby substations

HIFLD infrastructure inventory

CLIFTY CREEK

IN SERVICE · 345 kV

0.2 km

JEFFERSON

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

Offtake Agreement

Oct 15, 1952

OVEC and AEC executed 25-year power agreement for Clifty Creek and Kyger Creek generation to support uranium-enrichment facility at Piketon, Ohio. Extended through December 31, 2005.

25 yearsOhio Valley Electric Corporation · Atomic Energy Commission

Source

Offtake Agreement

Jul 10, 1953

ICPA established to provide excess OVEC generation to sponsoring utilities, effective after DOE agreement termination in 2003.

Ohio Valley Electric Corporation · Sponsoring Companies

Source

Offtake Agreement Termination

Apr 30, 2003

DOE terminated power supply agreement on April 30, 2003, following cancellation notice on September 29, 2000. All OVEC generation then available to sponsoring utilities.

U.S. Department of Energy · Ohio Valley Electric Corporation

Source

Land and environmental record

Air Permit Identifier

Jul 30, 2024

Underlying Part 70 permit T077-43597-00001 and amendment T077-47857-00001

IDEM permit document shows underlying Part 70 permit and administrative amendment for IKEC Clifty Creek Station.

Source

Air Permit Renewal

Jun 26, 2026

Part 70 Operating Permit Renewal No. T077-49759-00001

IDEM 2026 preliminary findings concern Part 70 permit renewal for Clifty Creek Station. Renewal allows continued operation of existing source without new emitting equipment.

Public Notice Letter

CCR Pond Waste-Fill Acreage

Apr 16, 2021

Landfill Runoff Collection Pond 57.0 acres waste fill

LRCP closure and post-closure plan specifies waste-fill area.

Source

Cooling Water Circulation

Approximately 1.4 billion gallons of cooling water cycled through plant daily; source is Ohio River

OVEC reports daily cooling-water circulation. Plant bottom-ash documentation identifies Ohio River as raw-water source for circulating-water intake pumps.

OVEC-IKEC - Clifty Creek

Landfill Area

Mar 25, 2025

Type I CCR landfill approximately 109 acres

Double-lined disposal unit properly constructed for coal combustion residual waste.

Source

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.

Relationship graph

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AssetOwner / operatorOfftakerOrganizationRelated asset

Timeline and sources

Project milestones and public references behind the asset profile.

Project timeline

Oct 1, 1952
Oct 1, 1952
OVEC and IKEC organizedSource
Ohio Valley Electric Corporation and its wholly owned subsidiary, Indiana-Kentucky Electric Corporation, were organized by investor-owned utilities and their parent companies to supply the projected power requirements of the Atomic Energy Commission's uranium-enrichment facilities.
Dec 1952
Dec 1952

Clifty Creek

Ask about Clifty Creek

Clifty Creek

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Overview

Key fields

Profile

Structured profile

Units and generators

Performance

Peer context

Monthly generation

Grid and market context

Nearby substations

Commercial, land, and environmental record

Transactions and agreements

Land and environmental record

Related parties and identifiers

Relationship graph

Timeline and sources

Project timeline

Parties and identifiers

Reporting portfolio

Sources

Common questions about Clifty Creek

How big is Clifty Creek?

What kind of plant is Clifty Creek?

Where is Clifty Creek located?

Who operates Clifty Creek?

How much electricity does Clifty Creek generate?

Where does Clifty Creek connect to the grid?

How does Clifty Creek compare to other plants?

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