Where is Cumberland (NJ)?

In Cumberland County, New Jersey (NJ). 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 Cumberland (NJ)?

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

Who owns Cumberland (NJ)?

EIA-860M names Calpine New Jersey Generation LLC 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 Cumberland (NJ) LLC?

Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Calpine New Jersey Generation LLC 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 "Cumberland (NJ) LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.

Is Cumberland (NJ) still running?

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

Cumberland (NJ)

Cumberland (NJ) is a 231 MW natural gas power plant in Cumberland County, New Jersey, operated by Calpine New Jersey Generation LLC. EIA-860M lists 2 generating units here, inside PJM. Its units entered service between 1990 and 2009.

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: 231.2 MW; 186.9 MW net summer
Generating units: 2
In service: 1990–2009
EIA plant ID: 5083

Where it is

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County: Cumberland County, New Jersey
Coordinates: 39.3757, -74.9654
Balancing authority: PJM
Sector: IPP Non-CHP

Units, technology and status

Operator of record: Calpine New Jersey Generation LLC
Primary energy source: Natural gas
Technologies: Natural Gas Fired Combustion Turbine
Status: Operating

Every plant Calpine New Jersey Generation LLC reports to EIA →

Cumberland (NJ): FAQ

Where is Cumberland (NJ)?: In Cumberland County, New Jersey (NJ). 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 Cumberland (NJ)?: 231 MW of nameplate capacity across 2 units, as of the EIA-860M release for 2026-07.
Who owns Cumberland (NJ)?: EIA-860M names Calpine New Jersey Generation LLC 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 Cumberland (NJ) LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Calpine New Jersey Generation LLC 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 "Cumberland (NJ) LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Cumberland (NJ) still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.