498 MW Natural Gas Fired Combustion Turbine (106 MW) + Natural Gas Steam Turbine (376 MW) + Petroleum Liquids (16 MW) operating in Suffolk, NY — New York Independent System Operator
498 MW
Nameplate Capacity
5
Generators
units
Hybrid (3)
Technology
Natural Gas Fired Combustion Turbine + Natural Gas Steam Turbine + Petroleum Liquids
1958
Operating Since
Coordinates
40.9497, -73.0785
County
Suffolk, NY
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | National Grid Generation LLC | National Grid Generation | — |
| Owner(s) | National Grid Generation LLC | National Grid | — |
| Status | Operating | — | — |
Port Jefferson Power Station is a fossil-burning power plant in Port Jefferson, New York on Long Island. It is operated by National Grid USA. Its four main steam turbine units were constructed between 1948 and 1960 by the Long Island Lighting Company (LILCO), with the older two decommissioned in 1994.
Read more on WikipediaThe Port Jefferson power plant, located in Suffolk County, New York, has a total capacity of 498 MW. The plant began operating in 1958 and is owned by National Grid, with National Grid Generation LLC listed as the operator. The facility utilizes a combination of natural gas and petroleum liquids as its primary fuel sources, employing both natural gas-fired combustion turbine and natural gas steam turbine technologies. It is considered a hybrid plant due to its multiple fuel and technology types.
Port Jefferson operates within the New York Independent System Operator (NYISO) balancing authority and the Northeast Power Coordinating Council (NPCC) NERC region. The plant's latest annual generation was 337,860 MWh, resulting in a capacity factor of 7.7%. It ranks as the 19th largest power plant in New York out of 38 plants and 487th nationally out of 945 plants. The plant consists of 5 generators.
Generated from EIA, GEM, and public data sources
NERC Region
NPCC
Balancing Authority
New York Independent System Operator
Grid Voltage
138 kV
Regulatory Status
RE
Entity Type
Investor-Owned Utility
Sector
Electric Utility
24.4K MWh
Latest Month
337.9K MWh
Annual Generation
7.7%
Capacity Factor
No financial data available for this plant.
Point of Interconnection
Nearest Substation
PORT_JEFF_3
Substation Distance
< 10 km
Coord Source
NYISO direct
Market Position
ISO/RTO Market
NYISO
LMP Node
23555
Pricing Hub
NYISO Zone K
Node Source
EIA-860 direct report
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