Where is Montville Station?

In New London County, Connecticut (CT). 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 Montville Station?

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

Who owns Montville Station?

EIA-860M names Montville Power 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 Montville Station LLC?

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

Is Montville Station still running?

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

Montville Station

Montville Station is a 495 MW oil-fired power plant in New London County, Connecticut, operated by Montville Power LLC. EIA-860M lists 4 generating units here, inside ISO New England. Its units entered service between 1954 and 1971.

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: 495.3 MW; 496.4 MW net summer
Generating units: 4
In service: 1954–1971
EIA plant ID: 546

Where it is

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County: New London County, Connecticut
Coordinates: 41.4281, -72.1019
Balancing authority: ISNE
Sector: IPP Non-CHP

Units, technology and status

Operator of record: Montville Power LLC
Primary energy source: Petroleum
Technologies: Natural Gas Steam Turbine, Petroleum Liquids
Status: Standby/Backup (2) · Operating (2)

This site runs on more than one energy source. EIA-860M capacity splits: Petroleum 420 MW, Natural gas 75 MW. It is filed here under Petroleum, the source with the most capacity.

Every plant Montville Power LLC reports to EIA →

Montville Station: FAQ

Where is Montville Station?: In New London County, Connecticut (CT). 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 Montville Station?: 495 MW of nameplate capacity across 4 units, as of the EIA-860M release for 2026-07.
Who owns Montville Station?: EIA-860M names Montville Power 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 Montville Station LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Montville Power 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 "Montville Station LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Montville Station still running?: EIA-860M files it as "Standby/Backup" for 2026-07. Statuses change monthly, and this page follows the monthly release.