Where is Vienna Operations?

In Dorchester County, Maryland (MD). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.

How big is Vienna Operations?

181 MW of nameplate capacity across 2 units, as of the EIA-860M release for 2026-07.

Who owns Vienna Operations?

EIA-860M names NRG Vienna Operations Inc as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.

Is this the same as Vienna Operations LLC?

Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — NRG Vienna Operations Inc here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "Vienna Operations LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.

Is Vienna Operations still running?

EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.

Vienna Operations

Vienna Operations is a 181 MW oil-fired power plant in Dorchester County, Maryland, operated by NRG Vienna Operations Inc. EIA-860M lists 2 generating units here, inside PJM. Its units entered service between 1968 and 1972.

As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m

Nameplate capacity: 180.6 MW; 167.3 MW net summer
Generating units: 2
In service: 1968–1972
EIA plant ID: 1564

Where it is

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County: Dorchester County, Maryland
Coordinates: 38.4878, -75.8208
Balancing authority: PJM
Sector: IPP Non-CHP

Units, technology and status

Operator of record: NRG Vienna Operations Inc
Primary energy source: Petroleum
Technologies: Petroleum Liquids
Status: Operating

Every plant NRG Vienna Operations Inc reports to EIA →

Vienna Operations: FAQ

Where is Vienna Operations?: In Dorchester County, Maryland (MD). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.
How big is Vienna Operations?: 181 MW of nameplate capacity across 2 units, as of the EIA-860M release for 2026-07.
Who owns Vienna Operations?: EIA-860M names NRG Vienna Operations Inc as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
Is this the same as Vienna Operations LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — NRG Vienna Operations Inc here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "Vienna Operations LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Vienna Operations still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.