Where is Eddystone Generating Station?

In Delaware 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 Eddystone Generating Station?

862 MW of nameplate capacity across 6 units, as of the EIA-860M release for 2026-07.

Who owns Eddystone 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 Eddystone 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 "Eddystone 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 Eddystone Generating Station still running?

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

Eddystone Generating Station

Eddystone Generating Station is a 862 MW natural gas power plant in Delaware County, Pennsylvania, operated by Constellation Power, Inc. EIA-860M lists 6 generating units here, inside PJM. Its units entered service between 1967 and 1976.

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: 861.6 MW; 820 MW net summer
Generating units: 6
In service: 1967–1976
EIA plant ID: 3161

Where it is

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County: Delaware County, Pennsylvania
Coordinates: 39.858, -75.323
Balancing authority: PJM
Sector: IPP Non-CHP

Units, technology and status

Operator of record: Constellation Power, Inc
Primary energy source: Natural gas
Technologies: Natural Gas Steam Turbine, Petroleum Liquids
Status: Operating

This site runs on more than one energy source. EIA-860M capacity splits: Natural gas 782 MW, Petroleum 80 MW. It is filed here under Natural gas, the source with the most capacity.

Every plant Constellation Power, Inc reports to EIA →

Eddystone Generating Station: FAQ

Where is Eddystone Generating Station?: In Delaware 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 Eddystone Generating Station?: 862 MW of nameplate capacity across 6 units, as of the EIA-860M release for 2026-07.
Who owns Eddystone 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 Eddystone 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 "Eddystone 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 Eddystone Generating Station still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.