Ocean State Power II

Ocean State Power II is a 307 MW natural gas power plant in Providence County, Rhode Island, operated by Ocean State Power II. EIA-860M lists 3 generating units here, inside ISO New England. Its units entered service in 1991.

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
306.6 MW
267.6 MW net summer
Generating units
3
In service
1991
EIA plant ID
54324

Where it is

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County
Providence County, Rhode Island
Coordinates
42.0099, -71.6701
Balancing authority
ISNE
Sector
IPP Non-CHP

Units, technology and status

Operator of record
Ocean State Power II
Primary energy source
Natural gas
Technologies
Natural Gas Fired Combined Cycle
Status
Operating

Every plant Ocean State Power II reports to EIA →

Ocean State Power II: FAQ

Where is Ocean State Power II?
In Providence County, Rhode Island (RI). 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 Ocean State Power II?
307 MW of nameplate capacity across 3 units, as of the EIA-860M release for 2026-07.
Who owns Ocean State Power II?
EIA-860M names Ocean State Power II 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 Ocean State Power II LLC?
Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Ocean State Power II 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 "Ocean State Power II LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Ocean State Power II still running?
EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.