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1564 MW Natural Gas Steam Turbine (1548 MW) + Petroleum Liquids (16 MW) operating in Suffolk, NY — New York Independent System Operator
1,564 MW
Nameplate Capacity
5
Generators
units
Hybrid (2)
Technology
Natural Gas Steam Turbine + Petroleum Liquids
1967
Operating Since
Coordinates
40.9236, -73.3423
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 | — | — |
The Northport Power Station, known as “The Stacks” by locals, is the largest power generation facility on Long Island. It is a natural gas and conventional oil electric power generating station located on the North Shore of Long Island in Fort Salonga, New York. The facility was built by the Long Island Lighting Company (LILCO) in stages between 1967 and 1977, and since August 2007 it has been owned and operated by National Grid USA. The plant's electric output is distributed by Long Island Power Authority (LIPA).
Read more on WikipediaNorthport is a 1564 MW hybrid power plant located in Suffolk County, New York. The plant, which began operating in 1967, is owned by National Grid, a company based in the United Kingdom, and operated by National Grid Generation LLC. The primary fuel source is natural gas, and the plant utilizes natural gas steam turbine technology. It also has the capability to use petroleum liquids. Northport consists of five generators.
In the most recent year of data, Northport generated 4,088,643 MWh of electricity, operating at a capacity factor of 29.7%. The plant operates within the New York Independent System Operator (NYISO) balancing authority and the Northeast Power Coordinating Council (NPCC) NERC region. Northport is the second-largest power plant in New York out of 38 plants, and ranks 55th nationally out of 945 plants.
Generated from EIA, GEM, and public data sources
ISO/RTO
NYISO
Market
ISO/RTO Member
NERC Region
NPCC — Northeast Power Coordinating Council
Balancing Authority
New York Independent System Operator (NYIS)
Grid Voltage
138.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
303.0K MWh
Latest Month
4.1M MWh
Annual Generation
29.7%
Capacity Factor
CO₂ Intensity
1302 lb/MWh
NOx
0.587 lb/MWh
SO₂
0.096 lb/MWh
CH₄
0.025 lb/MWh
N₂O
0.003 lb/MWh
Capacity Factor
17.4%
Annual Net Gen
2390 GWh
CO₂eq
1303 lb/MWh
Subregion
NPCC Long Island
2013
$965/kW
Est. Construction Cost
Total estimated cost: $1.5B
Point of Interconnection
Nearest Substation
NORTHPORT___2
Substation Distance
< 10 km
Coord Source
NYISO direct
Market Position
ISO/RTO Market
NYISO
LMP Node
23552
Pricing Hub
NYISO Zone K
Node Source
EIA-860 direct report
Last updated 2026-03-26
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