Where is Delaware Generating Station?

In Philadelphia County, Pennsylvania (PA). 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 Delaware Generating Station?

77 MW of nameplate capacity across 4 units, as of the EIA-860M release for 2026-07.

Who owns Delaware Generating Station?

EIA-860M names Constellation Power, 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 Delaware Generating Station LLC?

Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Constellation Power, 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 "Delaware Generating Station LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.

Is Delaware Generating Station still running?

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

Delaware Generating Station

Delaware Generating Station is a 77 MW oil-fired power plant in Philadelphia County, Pennsylvania, operated by Constellation Power, Inc. EIA-860M lists 4 generating units here, inside PJM. Its units entered service between 1969 and 1970.

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: 77 MW; 56 MW net summer
Generating units: 4
In service: 1969–1970
EIA plant ID: 3160

Where it is

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County: Philadelphia County, Pennsylvania
Coordinates: 39.968, -75.1252
Balancing authority: PJM
Sector: IPP Non-CHP

Units, technology and status

Operator of record: Constellation Power, Inc
Primary energy source: Petroleum
Technologies: Petroleum Liquids
Status: Operating

Every plant Constellation Power, Inc reports to EIA →

Delaware Generating Station: FAQ

Where is Delaware Generating Station?: In Philadelphia County, Pennsylvania (PA). 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 Delaware Generating Station?: 77 MW of nameplate capacity across 4 units, as of the EIA-860M release for 2026-07.
Who owns Delaware Generating Station?: EIA-860M names Constellation Power, 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 Delaware Generating Station LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Constellation Power, 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 "Delaware Generating Station LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Delaware Generating Station still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.