Northport Power Station is a natural-gas- and petroleum-liquids-fired generating station in Huntington, Suffolk County, New York, comprising four dual-fuel steam turbine-generator units and one onsite black-start combustion turbine. The facility is owned and operated by National Grid Generation LLC and historically supplied capacity and energy to the Long Island Power Authority under a power-supply agreement expiring April 30, 2028.
Canonical EIA plant baseline.
plant-2516
Similar plants ranked by technology, capacity, and distance.
Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| 2 | 387 MW 398 MW summer | Natural Gas Steam Turbine Natural Gas · ST | Jun 1968 | Operating |
| 3 | 387 MW 398.5 MW summer | Natural Gas Steam Turbine Natural Gas · ST | Jul 1972 | Operating |
| 4 | 387 MW 398 MW summer | Natural Gas Steam Turbine Natural Gas · ST | Dec 1977 | Operating |
| GT1 | 16 MW 11.8 MW summer |
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
Deterministic links to ERCOT market resources, price records, outage disclosures, queue records, and nearby infrastructure. Candidate joins remain labeled until corroborated.
Source-backed project transactions, agreements, land records, permits, and environmental disclosures. Portfolio and adjacent-project facts remain explicitly scoped.
Parties, market resources, and identifiers tied to this asset, with owner, operator, developer, EPC, compliance provider, and interconnecting entity roles kept separate.
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Project milestones and public references behind the asset profile.
Long Island Lighting Company purchases Northport land.
| Mar 1967 |
| Operating |
| ST1 | 387 MW 397.7 MW summer | Natural Gas Steam Turbine Natural Gas · ST | Jul 1967 | Operating |
Monthly generation is reported through EIA-923. Capacity factor uses the current EIA nameplate capacity and is shown only for complete calendar years.
| Largest reported plants | Capacity | State | |
|---|---|---|---|
| NorthportCurrent | 1,564 MW | NY | |
| E F Barrett | 669.2 MW | NY | |
| Holtsville | 567 MW | NY | |
| Port Jefferson | 498 MW | NY | |
| Wading River | 238.5 MW | NY | |
| Glenwood | 110 MW | NY | |
| Glenwood Landing | 106 MW | NY | |
| Shoreham | 71.5 MW | NY |
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
View full reporting portfolioEIA-860 lists generator GT1 with this operating date.
EIA-860 lists generator ST1 with this operating date.
EIA-860 lists generator 2 with this operating date.
EIA-860 lists generator 3 with this operating date.
EIA-860 lists generator 4 with this operating date.
LILCO's non-nuclear generation assets acquired by KeySpan Corporation.
National Grid plc acquires KeySpan Corporation.
LIPA completes feasibility study evaluating repowering scenarios for Northport.
National Grid Ventures announces 100%-hydrogen linear-generator demonstration project at Northport.
Hydrogen linear-generator pilot expected to reach operational status.
Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.
Northport has a reported capacity of 1,564 MW. Source: EIA Form 860M.
Northport is a Natural Gas Steam Turbine, Petroleum Liquids facility in Suffolk County, NY, participating in the NYISO market.
Northport is in Suffolk County, NY, inside the NYISO balancing area.
Northport is operated by National Grid Generation LLC according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
Northport reported 4,534.3 GWh over the twelve months to 2026-06. Figures are net generation as filed to EIA-923.
By capacity, Northport ranks #10 of 257 operating plants of the same technology nationally. It ranks #2 of 14 in NY.
Plants within 25 km, nearest first, regardless of technology. Proximity is straight-line distance between mapped plant coordinates; it does not by itself establish a shared point of interconnection.
