Where is Merck Rahway Power Plant?

In Union 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 Merck Rahway Power Plant?

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

Who owns Merck Rahway Power Plant?

EIA-860M names Merck & Co 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 Merck Rahway Power Plant LLC?

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

Is Merck Rahway Power Plant still running?

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

Merck Rahway Power Plant

Merck Rahway Power Plant is a 21 MW natural gas power plant in Union County, New Jersey, operated by Merck & Co Inc. EIA-860M lists 4 generating units here, inside PJM. Its units entered service between 1977 and 2017.

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: 20.8 MW; 21.3 MW net summer
Generating units: 4
In service: 1977–2017
EIA plant ID: 10224

Where it is

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County: Union County, New Jersey
Coordinates: 40.6156, -74.2653
Balancing authority: PJM
Sector: Industrial CHP

Units, technology and status

Operator of record: Merck & Co Inc
Primary energy source: Natural gas
Technologies: Natural Gas Steam Turbine, Solar Photovoltaic
Status: Operating (3) · Out of service and NOT expected to return to service in next calendar year (1)

This site runs on more than one energy source. EIA-860M capacity splits: Natural gas 20 MW, Solar 1 MW. It is filed here under Natural gas, the source with the most capacity.

Every plant Merck & Co Inc reports to EIA →

Merck Rahway Power Plant: FAQ

Where is Merck Rahway Power Plant?: In Union 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 Merck Rahway Power Plant?: 21 MW of nameplate capacity across 4 units, as of the EIA-860M release for 2026-07.
Who owns Merck Rahway Power Plant?: EIA-860M names Merck & Co 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 Merck Rahway Power Plant LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Merck & Co 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 "Merck Rahway Power Plant LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Merck Rahway Power Plant still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.