How big is North Anna?

North Anna has a reported capacity of 1,960.4 MW. Source: EIA Form 860.

What kind of plant is North Anna?

North Anna is a Nuclear, Conventional Hydroelectric facility in Louisa County, VA, participating in the PJM market.

Where is North Anna located?

North Anna is in Louisa County, VA, inside the PJM balancing area.

Who operates North Anna?

North Anna 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 North Anna generate?

North Anna reported 15,848.7 GWh over the twelve months to 2026-06. Figures are net generation as filed to EIA-923.

Where does North Anna connect to the grid?

North Anna interconnects at North Anna substation, on the Virginia Electric & Power Co. (Dominion Energy) system.

How does North Anna compare to other plants?

By capacity, North Anna ranks #25 of 54 operating plants of the same technology nationally. It ranks #1 of 2 in VA.

North Anna — 1,960 MW nuclear plant, Louisa County, VA

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North Anna — 1,960 MW nuclear plant, Louisa County, VA · Ask the Grid

Overview

Reported capacity: 1,960.4 MW
EIA-reported operating capacity; nameplate, seasonal, AC/DC, and unit ratings may differ.
Technology: Nuclear, Conventional Hydroelectric
Primary generation technology.
Registry anchor: Plant 6168
Virginia Electric & Power Co · Louisa County · PJM
Operating status: Operating
North Anna is operating.
Grid connection: North Anna substation
Virginia Electric & Power Co. (Dominion Energy)

Profile

Grid role: Large, reliable, carbon-free nuclear generation serving nearly 450,000 homes, supplemented by a small 1 MW hydroelectric station using Lake Anna outflows.
Grid connection: North Anna substation · Virginia Electric & Power Co. (Dominion Energy).
Physical build: North Anna comprises two Westinghouse three-loop pressurized-water nuclear reactors, rated at approximately 945 MW each (PRIS lists 948 MW for Unit 1 and 944 MW for Unit 2), plus a separate North Anna hydro station formed from two hydroelectric generation units with 1 MW total capacity using Lake Anna outflows. Reported scope also includes Alstom steam-turbine retrofit work on the two nuclear generating units.

Structured profile

Reported capacity: 1,960.4 MW
Nuclear, Conventional Hydroelectric
Operating status: operating
North Anna is operating.
Interconnection: North Anna substation
Virginia Electric & Power Co. (Dominion Energy)
Location: Louisa County
PJM
Operator: Virginia Electric & Power Co

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Surry

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Units and generators

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

Generator	Capacity	Technology	Operation	Status
1	979.7 MW 948 MW summer	Nuclear Nuclear · ST	Jun 1978	Operating
2	979.7 MW 944 MW summer	Nuclear Nuclear · ST	Dec 1980	Operating
HC1	1 MW 1 MW summer	Conventional Hydroelectric Water · HY	Dec 1987	Operating

Performance

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

Peer context

Technology capacity: 1,959.4 MW; Nuclear
National rank: #25; of 54 operating peers
VA rank: #1; of 2 operating peers

Monthly generation

Download CSV

Latest 12 months

15.85 TWh

Reported net generation

Latest report

Jun 2026

EIA-923 monthly filing

2025 capacity factor

87.3%

Using current reported nameplate capacity

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

NORTH ANNA

IN SERVICE · 500 kV

0.7 km

UNKNOWN156826

Commercial, land, and environmental record

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

Land and environmental record

Construction Stormwater Permit

Dec 2025

VAR-10 construction permit

Construction of a gravel-pad parking lot north of the ISFSI began in December 2025 under a VAR-10 construction stormwater permit with erosion and sediment controls.

North Anna Power Station Units 1 And 2, Annual Environmental Operating Report

Cooling Water Flow

Approximately 2,000,000 gallons per minute

When North Anna is in full operation, approximately 2 million gallons of water pass through the station per minute.

Waste Heat Treatment Facility | Dominion Energy

Cooling Water Source

Lake Anna reservoir

Lake Anna is the primary cooling-water source. Cooling water is routed through the station, then to the Waste Heat Treatment Facility, and returned to Lake Anna.

North Anna Power Station

Environmental Compliance Milestone

2025

No significant adverse environmental impacts, noncompliances, or reportable environmental events in 2025

Dominion's 2025 annual environmental operating report states no significant adverse environmental impacts, no Environmental Protection Plan noncompliances, and no reportable environmental events requiring notification to Virginia DEQ or NRC.

North Anna Power Station Units 1 And 2, Annual Environmental Operating Report

Historical Property And Water Area

1968

Approximately 18,000 acres historically acquired; approximately 9,600 acres Lake Anna; 3,400 acres WHTF

Dominion acquired about 18,000 acres in 1968 for site development, including land used to create Lake Anna (approximately 9,600 acres) and the Waste Heat Treatment Facility (approximately 3,400 acres of water).

North Anna Power 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

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AssetOwner / operatorContractorRelated asset

Parties and identifiers

Timeline and sources

Project milestones and public references behind the asset profile.

Project timeline

Feb 19, 1971
Feb 19, 1971
North Anna construction beginsSource
Construction began for the original North Anna nuclear units.
Jun 1978
Jun 1978
Generator enters operation

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 County	2,862 MW	VA
North AnnaCurrent	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

North Anna