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Marsh Run Generation Facility — United States of America

Gas power plant in Virginia, United States of America. Approximate location 38.5283, -77.7681.

GasVirginiaUnited States of AmericaOCGTAnnounced

Marsh Run Generation Facility is a 596.7 MW gas power station in Virginia, United States of America. It ranks #1131 of 10,938 United States of America power plants by installed capacity. In context, gas supplies about 40.0% of United States of America's electricity; the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).

596.7MW installed capacity
2004Announced

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0007836.

Data status

Known data

FacilityMarsh Run Generation Facility WRI
CountryUnited States of America · Virginia WRI
Coordinates38.5283, -77.7681 WRI
FuelGas WRI
MW installed capacity596.7 MW GEM · 2026 · L100000402169; operating plant capacity
Verification noteQuality label backfilled from existing source-backed capacity provenance on 2026-07-05; capacity value was not changed. source-verified
OwnerOld Dominion Electric Coop WRI
Commissioned2004 WRI
TechnologyOCGT WRI

Calculated from dataset

Capacity rank in country#1131 / 10938 calculated
Fuel-specific rank in country#490 / 2165 calculated
Capacity vs country/fuel peers4.92× · 121.2 MW · n=2165 calculated
Climate13.1°C · HDD 2,340 derived from coordinates
Environmental severityC3 · 34/100 derived from coordinates

Not available

GWh reported / yrNot available not in dataset
CO₂ emissionsNot available not in dataset

Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.

Capacity provenance

The public capacity above is the current source-record value. A 2026 tracker candidate lists 597 MW for Marsh Run generation facility, but it is not used as the public primary value until scope is verified (unit vs operating vs installed/project total).

Data provenance

The capacity and/or fuel fields on this page include a source-backed provenance label from GEM, an official registry, Wikidata, OSM, or a cross-source match.

capacity: GEM · 2026 · L100000402169; fuel: WRI GPPD

In context: how this plant compares

At 596.7 MW, Marsh Run Generation Facility is well above the median gas plant in United States of America (121.2 MW). Technically it is described as OCGT. Its current lifecycle status is “Announced” — so it is not yet, or no longer, generating at full output. Gas plants burn natural gas either in open-cycle turbines for fast peaking, or in combined-cycle units that recover exhaust heat in an HRSG to reach roughly 55–62% efficiency — the cleanest-burning fossil option.

Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.

How it compares & nearby plants

The #490 largest gas power plant of 2165 in United States of America by capacity.

United States of America has 2165 gas power plants in this dataset, together about 789,950 MW of capacity.

Nearby power plants

Location

Coordinates 38.5283, -77.7681 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Marsh Run Generation Facility?

Marsh Run Generation Facility is a 596.7 MW gas power plant in Virginia, United States of America, Announced 2004.

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