OSWEGO HARBOR POWER

Operating

Oil power plant

Capacity
1,804 MW
Primary fuel
Oil
County
Oswego County
Operator
NRG OSWEGO HARBOR POWER OPERATIONS INC
Status
Operating
Commissioned
1975
EIA plant ID
2594
Generators
2
Technology
Petroleum Liquids
Net generation (2024)
44.3 GWh
Capacity factor (2024, EIA nameplate)
0.3%
Data vintage
EIA-860 2024 final; EIA-923 2022-2024 final
Coordinates
43.4586, -76.5315

See it on the map

OSWEGO HARBOR POWER, a 1,804 MW Oil power plant in Oswego County, New York. Operated by NRG OSWEGO HARBOR POWER OPERATIONS INC, commissioned 1975.

How OSWEGO HARBOR POWER compares

With 1,804 MW of capacity, OSWEGO HARBOR POWER ranks 4th among the 320 operating power plants Bywatts maps in New York and is the largest of the 20 operating Oil plants in the state. It accounts for about 41% of New York's operating Oil capacity and 4.8% of all operating capacity in the state. Nationally it is the largest of the 544 operating Oil plants in the database. Commissioned in 1975, it is older than 57% of the 312 operating New York plants with a recorded commissioning year. It shares Oswego County with 15 other operating plants, including NINE MILE POINT NUCLEAR STATION and SITHE INDEPENDENCE STATION.

EIA-860 lists 2 generators at the site with 1,804 MW of nameplate capacity, all petroleum liquids technology. Net generation was 44.3 GWh in 2024 (a 0.3% capacity factor). Its generators came online between 1975 and 1979.

Grid neighborhood

The nearest named substation is OSWEGO (345 kV), about 0.2 miles away; the closest transmission line found within 10 miles is a 345 kV line owned by NIAGARA MOHAWK POWER CORP., under 0.1 miles away. Another 13 operating power plants totaling 3,983 MW sit within 25 miles; the largest is NINE MILE POINT NUCLEAR STATION (1,901 MW, Nuclear). Within 50 miles is one mapped data center, Westelcom Networks Watertown in Watertown, about 47.2 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

Weather peril exposure

OSWEGO HARBOR POWER is a 1,804 MW oil power plant in Oswego County, NY, operated by NRG OSWEGO HARBOR POWER OPERATIONS INC, commissioned in 1975. Oswego County carries low modeled catastrophe exposure in the FEMA National Risk Index, scoring 1.1 of 5 at the 2nd national percentile. Ice storm is the leading peril, rated Relatively High by FEMA at the 74th percentile.

The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to an oil plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.

1.1 of 5Modeled catastrophe exposure
LowExposure band
Ice stormLeading peril
Relatively LowFEMA county risk rating

Oswego County hazard ratings

PerilFEMA ratingNational percentilePeril scoreEvents per year
Ice stormRelatively High74th4.0 of 51.4
Riverine floodingRelatively Moderate52nd3.1 of 50.86
HurricaneRelatively Low49th3.0 of 50.01
Winter weatherRelatively High47th2.9 of 546.7
EarthquakeRelatively Low42nd2.7 of 5<0.01
Strong windRelatively Moderate34th2.4 of 51.2
WildfireVery Low22nd1.9 of 5<0.01
Coastal floodingVery Low15th1.6 of 50.01
TornadoRelatively Low15th1.6 of 50.16
HailVery Low10th1.4 of 51.5
Heat waveRelatively Low5th1.2 of 52.9
LightningRelatively Moderate3rd1.1 of 528.6

Model hail, wind and flood exposure for Oswego County in the weather risk calculator

Ratings are the FEMA National Risk Index county hazard ratings; the peril score is a Bywatts transform of the FEMA national percentile. Full data sources and the solar vulnerability methodology are in the weather risk calculator.

Modeled estimate for screening and negotiation. Built from FEMA National Risk Index county hazard data and a solar vulnerability layer documented above. Not a quote, a binder, or actuarial advice, and not a substitute for a carrier's own model. Hazard data: FEMA National Risk Index December 2025, synced 2026-07-24. Resolution is county level, not site level.