How big is Bath County?

Bath County has a reported capacity of 2,862 MW. Source: EIA Form 860.

What kind of plant is Bath County?

Bath County is a Hydroelectric Pumped Storage facility in Bath County, VA, participating in the PJM market.

Where is Bath County located?

Bath County is in Bath County, VA, inside the PJM balancing area.

Who operates Bath County?

Bath County is operated by Virginia Electric & Power Co according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.

How much electricity does Bath County generate?

Bath County reported 4,535.6 GWh over the twelve months to 2026-06. For a storage plant this is reported gross generation — a discharge proxy, not a cycle count or a conventional capacity factor.

Where does Bath County connect to the grid?

Bath County interconnects at Two interconnecting substations: one in Augusta County near Bridgewater, Virginia, and one in Rockbridge County near Lexington, Virginia..

How does Bath County compare to other plants?

By capacity, Bath County ranks #1 of 39 operating plants of the same technology nationally. It ranks #1 of 2 in VA.

Bath County — 2,862 MW hydro plant, Bath County, VA

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Bath County — 2,862 MW hydro plant, Bath County, VA · Ask the Grid

Overview

Power / energy: 2,862 MW / 24,000 MWh
Reported plant capacity and configuration.
Technology: Hydroelectric Pumped Storage
Primary generation technology.
Registry anchor: Plant 6167
Virginia Electric & Power Co · Bath County · PJM
Storage duration: 11 hours
Battery subsystem rating.
Operating status: Operating
Bath County is operating.
Grid connection: Two interconnecting substations: one in Augusta County near Bridgewater, Virginia, and one in Rockbridge County near Lexington, Virginia.
500 kV
Commercial operation: December 1985
Best-supported operating milestone.

Profile

Grid role: Pumped-storage balancing and energy-shifting resource serving PJM; the operator describes the station as balancing electricity needs across multiple states.
Grid connection: Two interconnecting substations: one in Augusta County near Bridgewater, Virginia, and one in Rockbridge County near Lexington, Virginia. · 500 kV.
Context: Dominion Energy identifies Bath County as the largest pumped-hydro energy-storage facility in North America. The station balances electricity demand across six states and has approximately 24,000 MWh of storage capacity.
Physical build: Bath County Pumped Storage Station consists of two large reservoirs, a 135-foot-high by 2,400-foot-long lower dam containing approximately 4 million cubic yards of earth and rock fill, and a 460-foot-high by 2,200-foot-long upper dam containing approximately 18 million cubic yards of earth and rock fill. The station has six turbine-generators with 3,003 MW net generating capacity. Voith modernized the six pump-turbines, replacing the impellers and rehabilitating the head covers; each modernized turbine has a maximum generating capacity of 530 MW.

Structured profile

Reported capacity: 2,862 MW
Hydroelectric Pumped Storage
Energy: 24,000 MWh
11-hour storage duration
Commercial operation: December 1985
Operating status: operating
Bath County is operating.
Interconnection: Two interconnecting substations: one in Augusta County near Bridgewater, Virginia, and one in Rockbridge County near Lexington, Virginia.

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Smith Mountain

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Units and generators

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

Generator	Capacity	Technology	Operation	Status
1	477 MW 488.5 MW summer	Hydroelectric Pumped Storage Water · PS	Dec 1985	Operating
2	477 MW 488.5 MW summer	Hydroelectric Pumped Storage Water · PS	Dec 1985	Operating
3	477 MW 488.5 MW summer	Hydroelectric Pumped Storage Water · PS	Dec 1985	Operating
4	477 MW 488.5 MW summer	Hydroelectric Pumped Storage Water · PS	Dec 1985	Operating
5	477 MW

Performance

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

Peer context

Technology capacity: 2,862 MW; Hydroelectric Pumped Storage
National rank: #1; of 39 operating peers
VA rank: #1; of 2 operating peers

Monthly generation

Download CSV

Latest 12 months

4.54 TWh

Reported gross generation

Latest report

Jun 2026

EIA-923 monthly filing

2025 net exchange

-1.08 TWh

Generation less station charging

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

BATH COUNTY

IN SERVICE · 500 kV

0.0 km

UNKNOWN108860

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

Capacity Offtake

Date not disclosed

AGC provided generation capacity from Bath County facility to AE Supply and MP. Filing does not disclose contract duration, price, or contracted capacity.

Allegheny Generating Company · Allegheny Energy Supply Company, LLC · Monongahela Power Company

Source

Asset Purchase Agreement

Aug 2017

Amended and restated asset purchase agreement dated August 30, 2017 for Aspen Generating, LLC (wholly owned subsidiary of LS Power Equity Partners III, LP) to acquire approximately 59% of AGC's Bath County interest. Total $825 million price for multiple assets; Bath County portion not separately allocated.

Allegheny Generating Company · Aspen Generating, LLC · LS Power Equity Partners III, LP

Source

Asset Acquisition Closing

May 2018

Closing of sale by AE Supply and AGC of approximately 59% of AGC's Bath County interest to Aspen Generating, LLC. Net proceeds approximately $355 million (includes timing-based adjustment, subject to customary post-closing adjustments). LS Power reports acquired interest as 23.8% of 3,008 MW facility (716 MW nameplate capacity).

$355.0M716 MW contractedAllegheny Generating Company · Allegheny Energy Supply Company, LLC · Aspen Generating, LLC · LS Power Equity Partners III, LP

Source

Land and environmental record

Virginia Water Protection Permit

Virginia Water Protection Permit compliance

Downstream flow releases maintained in compliance with Virginia Water Protection Permit. Permit identifier not stated in retrieved records.

Federal Register :: Virginia Electric and Power Company d/b/a Dominion Energy Virginia, Allegheny Generating Company, and Bath County Energy, LLC; Notice of Application Tendered for Filing With the Commission and Establishing Procedural Schedule for Licensing and Deadline for Submission of Final Amendments

Water Generation Flow

Generation water flow rate

When demand is high, water releases through turbines at rate of 13.5 million gallons per minute. Pumping rate is 12.7 million gallons per minute.

Bath County Pumped Storage Station

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

Drag organizations to explore the network. Select a node to pin its details and available page link.

AssetOwner / operatorFinancierContractor

Timeline and sources

Project milestones and public references behind the asset profile.

Project timeline

Jan 1977
Jan 1977
FERC License IssuedBath County...
The Bath County project received its license in January 1977.
Mar 1977
Mar 1977
Construction Began

Reporting portfolio

EIA reporting entity

Virginia Electric & Power Co

Entity 19876

Operating portfolio

35 plants

3 states

Reported capacity

19,819.4 MW

Conventional Hydroelectric · Conventional Steam Coal · Hydroelectric Pumped Storage

Largest reported plants in this portfolio
Largest reported plants	Capacity	State
Bath CountyCurrent	2,862 MW	VA
North Anna	1,960.4 MW	VA
Greensville County Power Station	1,773.3 MW	VA
Surry	1,695 MW	VA
Mt Storm	1,680.9 MW	WV
Brunswick County Power Station	1,472.2 MW	VA
Warren County	1,472.2 MW	VA
Ladysmith	892.5 MW	VA

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

View full reporting portfolio

Bath County

Bath County

Overview

Profile

Structured profile

Related assets

Muddy Run

Smith Mountain

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

Yards Creek Energy

Gauley River Power Partners

Seneca Generation LLC

Hawks Nest Hydro

Parties and identifiers

Reporting portfolio

Sources

Common questions about Bath County

How big is Bath County?

What kind of plant is Bath County?

Where is Bath County located?

Who operates Bath County?

How much electricity does Bath County generate?

Where does Bath County connect to the grid?

How does Bath County compare to other plants?