BRUNOT ISLAND
OperatingNatural Gas power plant
- Capacity
- 416 MW
- Primary fuel
- Natural Gas
- County
- Allegheny County
- Operator
- NRG POWER MIDWEST LP
- Status
- Operating
- Commissioned
- 1972
- EIA plant ID
- 3096
- Generators
- 5
- Technology
- Natural Gas Fired Combined Cycle
- Net generation (2024)
- 54.1 GWh
- Capacity factor (2024, EIA nameplate)
- 1.7%
- Data vintage
- EIA-860 2024 final; EIA-923 2022-2024 final
- Coordinates
- 40.4647, -80.0436
BRUNOT ISLAND, a 416 MW Natural Gas power plant in Allegheny County, Pennsylvania. Operated by NRG POWER MIDWEST LP, commissioned 1972.
How BRUNOT ISLAND compares
With 416 MW of capacity, BRUNOT ISLAND ranks 30th among the 170 operating power plants Bywatts maps in Pennsylvania and 12th of the 28 operating Natural Gas plants in the state. It accounts for about 3.9% of Pennsylvania's operating Natural Gas capacity and 1.1% of all operating capacity in the state. Nationally it is the 367th-largest of the 1,185 operating Natural Gas plants in the database. Commissioned in 1972, it is older than 77% of the 168 operating Pennsylvania plants with a recorded commissioning year. Its operator, NRG POWER MIDWEST LP, runs 2 operating plants in Pennsylvania totaling 771 MW. It shares Allegheny County with 5 other operating plants, including ALLEGHENY ENERGY UNITS 3 4 & 5 and FIRSTENERGY ALLEGHENY ENERGY UNITS 1 & 2.
EIA-860 lists 5 generators at the site with 365 MW of nameplate capacity, mainly natural gas fired combined cycle technology (this page's HIFLD capacity figure is 416 MW). Net generation was 54.1 GWh in 2024 (a 1.7% capacity factor). Its generators came online between 1972 and 1974.
Grid neighborhood
The nearest named substation is YUKON (500 kV), about 24.3 miles away; the closest transmission line found within 10 miles is a 138 kV line owned by DUQUESNE LIGHT CO, under 0.1 miles away. Another 10 operating power plants totaling 2,595 MW sit within 25 miles; the largest is BEAVER VALLEY (1,847 MW, Nuclear). Within 50 miles are 2 mapped data centers; the nearest is Crown Castle Pittsburgh (Allegheny Center Mall) in Pittsburgh, about 2.2 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
BRUNOT ISLAND is a 416 MW natural gas power plant in Allegheny County, PA, operated by NRG POWER MIDWEST LP, commissioned in 1972. Allegheny County carries low modeled catastrophe exposure in the FEMA National Risk Index, scoring 1.0 of 5 at the 1st national percentile. Riverine flooding is the leading peril, rated Very High by FEMA at the 66th 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.
Allegheny County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Riverine flooding | Very High | 66th | 3.7 of 5 | 7.3 |
| Hurricane | Relatively Low | 40th | 2.6 of 5 | 0.03 |
| Winter weather | Relatively High | 39th | 2.6 of 5 | 11.2 |
| Earthquake | Relatively Low | 28th | 2.1 of 5 | <0.01 |
| Strong wind | Relatively High | 23rd | 1.9 of 5 | 2.3 |
| Tornado | Relatively High | 20th | 1.8 of 5 | 0.28 |
| Ice storm | Very High | 10th | 1.4 of 5 | 0.40 |
| Heat wave | Relatively Moderate | 9th | 1.3 of 5 | 1.9 |
| Lightning | Relatively High | 8th | 1.3 of 5 | 42.6 |
| Hail | Very Low | 5th | 1.2 of 5 | 3.2 |
| Wildfire | Very Low | 4th | 1.2 of 5 | <0.01 |
Perils not assessed in Allegheny County
These perils carry no usable National Risk Index figure for this county, so they are excluded from the scoring rather than scored zero. A zero would claim the peril was assessed and found benign.
| Peril | Why it is not scored |
|---|---|
| Coastal flooding | FEMA rating is "Not Applicable" for this county |
Model hail, wind and flood exposure for Allegheny 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.