GLENWOOD

Operating

Natural Gas power plant

Capacity
110 MW
Primary fuel
Natural Gas
County
Nassau County
Operator
NATIONAL GRID GENERATION LLC
Status
Operating
Commissioned
1972
EIA plant ID
2514
Generators
2
Net generation (2024)
2.6 GWh
Capacity factor (2024, EIA nameplate)
0.3%
Data vintage
EIA-860 2024 final; EIA-923 2022-2024 final
Coordinates
40.8272, -73.6475

See it on the map

GLENWOOD, a 110 MW Natural Gas power plant in Nassau County, New York. Operated by NATIONAL GRID GENERATION LLC, commissioned 1972.

How GLENWOOD compares

With 110 MW of capacity, GLENWOOD ranks 47th among the 320 operating power plants Bywatts maps in New York and 27th of the 68 operating Natural Gas plants in the state. It accounts for about 0.6% of New York's operating Natural Gas capacity and 0.3% of all operating capacity in the state. Nationally it is the 657th-largest of the 1,185 operating Natural Gas plants in the database. Commissioned in 1972, it is older than 58% 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 Nassau County with 9 other operating plants, including E F BARRETT and BETHPAGE POWER PLANT.

Under the same EIA plant code, EIA-860 lists 2 generators at the site with 110 MW of nameplate capacity. Net generation was 2.6 GWh in 2024 (a 0.3% capacity factor).

Grid neighborhood

The nearest named substation is NEWBRIDGE ROAD (345 kV), about 8.6 miles away; the closest transmission line found within 10 miles is a 345 kV line, about 0.4 miles away. Another 52 operating power plants totaling 13,951 MW sit within 25 miles; the largest is RAVENSWOOD (2,625 MW, Natural Gas). Within 50 miles are 30 mapped data centers; the nearest is 1025Connect in Westbury, about 6.8 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

GLENWOOD is a 110 MW natural gas power plant in Nassau County, NY, operated by NATIONAL GRID GENERATION LLC, commissioned in 1972. Nassau County carries low modeled catastrophe exposure in the FEMA National Risk Index, scoring 1.4 of 5 at the 10th national percentile. Coastal flooding is the leading peril, rated Very High by FEMA at the 77th percentile.

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

1.4 of 5Modeled catastrophe exposure
LowExposure band
Coastal floodingLeading peril
Relatively HighFEMA county risk rating

Nassau County hazard ratings

PerilFEMA ratingNational percentilePeril scoreEvents per year
Coastal floodingVery High77th4.1 of 53.8
HurricaneRelatively High76th4.1 of 50.17
EarthquakeRelatively Moderate75th4.0 of 5<0.01
Ice stormVery High63rd3.5 of 50.72
WildfireVery Low30th2.2 of 5<0.01
Winter weatherVery High25th2.0 of 59.8
Riverine floodingRelatively High18th1.7 of 53.3
TornadoRelatively Moderate13th1.5 of 50.13
LightningVery High13th1.5 of 527.3
Strong windRelatively High11th1.4 of 54.9
Heat waveRelatively Moderate8th1.3 of 55.8
HailVery Low1st1.1 of 51.7

Model hail, wind and flood exposure for Nassau 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.