Waterford Power — 922 MW gas plant, Washington County, OH

Waterford Power — 922 MW gas plant, Washington County, OH · Ask the Grid

Generation and physical site

EIA plant 55503 · Inventory for Aug 2026.

Reported operating nameplate by technology

Natural gas: 921.6 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 (4)

EIA generator status and nameplate capacity for Waterford Power, LLC
Generator	Technology	Status	Power (MW)	Energy (MWh)
CTG1	Natural Gas Fired Combined Cycle	Operating	174.2	Unknown
CTG2	Natural Gas Fired Combined Cycle	Operating	174.2	Unknown
CTG3	Natural Gas Fired Combined Cycle	Operating	174.2	Unknown
ST1	Natural Gas Fired Combined Cycle	Operating	399	Unknown

Physical map location · OpenStreetMap: 39.53369, -81.71667
Filed location · EIA: 39.53330, -81.71780

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: Jul 2, 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
CTG1	174.2 MW 168 MW summer	Natural Gas Fired Combined Cycle Natural Gas · CT	Aug 2003	Operating
CTG2	174.2 MW 168 MW summer	Natural Gas Fired Combined Cycle Natural Gas · CT	Aug 2003	Operating
CTG3	174.2 MW 168 MW summer	Natural Gas Fired Combined Cycle Natural Gas · CT	Aug 2003	Operating
ST1	399 MW 370.6 MW summer	Natural Gas Fired Combined Cycle Natural Gas · CA	Aug 2003	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

Asset Acquisition Completed

Sep 28, 2005

American Electric Power, through Columbus Southern Power utility subsidiary, completed the purchase of the Waterford Energy Center from an affiliate of Public Service Enterprise Group (PSEG) for approximately $220 million. The facility was reported as having a nominal generating capacity of 821 megawatts.

$220.0MAmerican Electric Power · PSEG Power

aepohio.com

Asset Sale Announcement

Sep 14, 2016

American Electric Power announced an agreement to sell four competitive power plants, including the Waterford Energy Center (approximately 840 MW), to Lightstone Generation LLC, a joint venture of Blackstone and an affiliate of ArcLight Capital Partners LLC. The full portfolio included 5,200 megawatts of generation for approximately $2.1 billion.

American Electric Power · Lightstone Generation LLC · Blackstone · ArcLight Capital Partners

prnewswire.com

Asset Acquisition Completed

Jan 30, 2017

American Electric Power completed the sale of four competitive power plants to Lightstone Generation LLC for approximately $2.1 billion. Waterford Energy Center was identified as one of the four assets sold; no standalone Waterford consideration was disclosed.

American Electric Power · Lightstone Generation LLC

prnewswire.com

Asset Acquisition Announced

Jan 15, 2026

Talen Energy Corporation announced definitive agreements to acquire Waterford Energy Center, Darby Generating Station, and Lawrenceburg Power Plant from Energy Capital Partners (ECP) for $3.45 billion, comprising approximately $2.55 billion in cash and approximately $900 million in Talen stock (2.4 million shares at $386 per share assumed valuation).

Talen Energy Corporation · Energy Capital Partners

ir.talenenergy.com

Asset Acquisition Completed

Jun 15, 2026

Talen Energy Corporation completed the acquisition of Waterford Energy Center, Darby Generating Station, and Lawrenceburg Power Plant from Energy Capital Partners (ECP). ECP received 2.4 million shares of Talen common stock and approximately $2.55 billion in cash (subject to post-closing adjustments for working capital and other customary items). Concurrently, Talen expanded its credit facilities: increased existing Revolving Credit Facility from $900 million to $1.35 billion and upsized Letter of Credit Facility from $1.1 billion to $1.5 billion (extended maturity to December 2029).

Talen Energy Corporation · Energy Capital Partners

globenewswire.com

Timeline and sources

Project milestones and public references behind the asset profile.

Project timeline

Aug 2003
Aug 2003
Generators enter operationEIA-860
EIA-860 lists generator CTG1, generator CTG2, generator CTG3, generator ST1 with this operating date.
May 27, 2005
May 27, 2005
PSEG agreed to sell Waterford to AEPappalachian...
PSEG announced an agreement to sell the Waterford generation facility to American Electric Power (AEP) through its Columbus Southern Power subsidiary for $220 million, contingent on regulatory approvals.
Sep 28, 2005
Sep 28, 2005
AEP completed acquisition of Waterford from PSEGaepohio.com
American Electric Power, through Columbus Southern Power utility subsidiary, completed the purchase of the Waterford Energy Center from an affiliate of Public Service Enterprise Group (PSEG) for approximately $220 million. The facility was reported as having a nominal generating capacity of 821 megawatts.
View 1 more milestoneHide 1 milestone
1. Sep 14, 2016
  Sep 14, 2016
  AEP agreed to sell Waterford and three other plants to Lightstone…prnewswire....
  American Electric Power announced an agreement to sell four competitive power plants, including the Waterford Energy Center (approximately 840 MW), to Lightstone Generation LLC, a joint venture of Blackstone and an affiliate of ArcLight Capital Partners LLC. The full portfolio included 5,200 megawatts of generation for approximately $2.1 billion.
Jan 30, 2017
Jan 30, 2017
Lightstone Generation completed acquisition of Waterford and three…prnewswire....
American Electric Power completed the sale of four competitive power plants to Lightstone Generation LLC for approximately $2.1 billion. Waterford Energy Center was identified as one of the four assets sold; no standalone Waterford consideration was disclosed.
Jan 15, 2026
Jan 15, 2026
Talen agreed to acquire Waterford, Darby, and Lawrenceburg from ECPir.talenene...
Talen Energy Corporation announced definitive agreements to acquire Waterford Energy Center, Darby Generating Station, and Lawrenceburg Power Plant from Energy Capital Partners (ECP) for $3.45 billion, comprising approximately $2.55 billion in cash and approximately $900 million in Talen stock (2.4 million shares at $386 per share assumed valuation).
Jun 15, 2026
Jun 15, 2026
Talen completed acquisition of Waterford, Darby, and Lawrenceburg from…globenewswi...
Talen Energy Corporation completed the acquisition of Waterford Energy Center, Darby Generating Station, and Lawrenceburg Power Plant from Energy Capital Partners (ECP). ECP received 2.4 million shares of Talen common stock and approximately $2.55 billion in cash (subject to post-closing adjustments for working capital and other customary items). Concurrently, Talen expanded its credit facilities: increased existing Revolving Credit Facility from $900 million to $1.35 billion and upsized Letter of Credit Facility from $1.1 billion to $1.5 billion (extended maturity to December 2029).

Sources

PublisherReferenceType

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

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

ir.talenenergy.comir.talenenergy.compublic_source

Common questions about Waterford Power

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

How big is Waterford Power?

Waterford Power reports 921.6 MW natural gas of operating nameplate capacity. These technology ratings do not establish a common export limit. Source: EIA Aug 2026.

What kind of plant is Waterford Power?

Waterford Power is a Natural Gas Fired Combined Cycle facility in Washington County, OH, participating in the PJM market.

Where is Waterford Power located?

Waterford Power is in Washington County, OH, inside the PJM balancing area.

Who operates Waterford Power?

Waterford Power is operated by Waterford Power, LLC according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.

How much electricity does Waterford Power generate?

Waterford Power reported 6,890.1 GWh over the twelve months to 2026-07. Figures are net generation as filed to EIA-923.

How does Waterford Power compare to other plants?

By capacity, Waterford Power ranks #112 of 540 operating plants of the same technology nationally. It ranks #7 of 15 in OH.

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.

Washington Energy FacilityNatural Gas Fired Combined CycleNatural Gas Fired Combined Cycle · same type715 MW7.3 km

Overview

Infrastructure record

Overview

Infrastructure record

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Structured profile

Generation and physical site

Reported operating nameplate by technology

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Units and generators

Performance

Peer context

Monthly generation

Grid and market context

Market registration

Nearby substations

Commercial, land, and environmental record

Transactions and agreements

Related parties and identifiers

Relationship graph

Parties and identifiers

Reporting portfolio

Timeline and sources

Project timeline

Sources

Common questions about Waterford Power

How big is Waterford Power?

What kind of plant is Waterford Power?

Where is Waterford Power located?

Who operates Waterford Power?

How much electricity does Waterford Power generate?

How does Waterford Power compare to other plants?

Co-located assets