PORT JEFFERSON

How PORT JEFFERSON compares

With 498 MW of capacity, PORT JEFFERSON ranks 26th among the 320 operating power plants Bywatts maps in New York and 14th of the 68 operating Natural Gas plants in the state. It accounts for about 2.5% of New York's operating Natural Gas capacity and 1.3% of all operating capacity in the state. Nationally it is the 333rd-largest of the 1,185 operating Natural Gas plants in the database. Commissioned in 1958, it is older than 67% of the 312 operating New York plants with a recorded commissioning year. Its operator, NATIONAL GRID GENERATION LLC, runs 12 operating plants in New York totaling 3,945 MW. It shares Suffolk County with 24 other operating plants, including NORTHPORT and HOLTSVILLE.

EIA-860 lists 5 generators at the site with 498 MW of nameplate capacity, mainly natural gas steam turbine technology. Net generation was 327 GWh in 2024 (a 7.5% capacity factor), down 22% from 2022. Its generators came online between 1958 and 2002.

Grid neighborhood

The nearest named substation is BRIDGEPORT RESCO, about 16.2 miles away; the closest transmission line found within 10 miles is a 138 kV line owned by LONG ISLAND POWER AUTHORITY, under 0.1 miles away. Another 26 operating power plants totaling 6,338 MW sit within 25 miles; the largest is NORTHPORT (1,564 MW, Natural Gas). Within 50 miles are 4 mapped data centers; the nearest is Crown Castle Brentwood (1650 Islip) in Brentwood, about 13.6 miles away.

Computed by Bywatts from HIFLD power plant, substation and transmission line records, EIA-860/923 survey data and PeeringDB data center locations; distances are straight-line. Sources and methodology