MON VALLEY WORKS
OperatingPower plant
- Capacity
- 53 MW
- Primary fuel
- Other
- County
- Allegheny County
- Operator
- UNITED STATES STEEL-MON VALLEY
- Status
- Operating
- Commissioned
- 1943
- EIA plant ID
- 50732
- Generators
- 3
- Technology
- Other Gases
- Net generation (2024)
- 431 GWh
- Capacity factor (2024, EIA nameplate)
- 93%
- Data vintage
- EIA-860 2024 final; EIA-923 2022-2024 final
- Coordinates
- 40.3928, -79.8568
MON VALLEY WORKS, a 53 MW power plant in Allegheny County, Pennsylvania. Operated by UNITED STATES STEEL-MON VALLEY, commissioned 1943.
How MON VALLEY WORKS compares
With 53 MW of capacity, MON VALLEY WORKS ranks 75th among the 170 operating power plants Bywatts maps in Pennsylvania. It accounts for about 0.1% of all operating capacity in Pennsylvania. Commissioned in 1943, it is older than 95% of the 168 operating Pennsylvania plants with a recorded commissioning year. It shares Allegheny County with 5 other operating plants, including ALLEGHENY ENERGY UNITS 3 4 & 5 and BRUNOT ISLAND.
EIA-860 lists 3 generators at the site with 53 MW of nameplate capacity, all other gases technology. Net generation was 431 GWh in 2024 (a 93% capacity factor), up 3% from 2022. Its generators came online between 1943 and 2002.
Grid neighborhood
The nearest named substation is YUKON (500 kV), about 14.4 miles away; the closest transmission line found within 10 miles is a 138 kV line owned by DUQUESNE LIGHT CO, about 0.6 miles away. Another 6 operating power plants totaling 1,101 MW sit within 25 miles; the largest is ALLEGHENY ENERGY UNITS 3 4 & 5 (556 MW, Natural Gas). Within 50 miles are 2 mapped data centers; the nearest is Citynet Pittsburgh in Pittsburgh, about 8.6 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
Weather peril exposure
MON VALLEY WORKS is a 53 MW power plant in Allegheny County, PA, operated by UNITED STATES STEEL-MON VALLEY, commissioned in 1943. 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 this 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.