Mon Valley Works
Natural gas power plant in Allegheny County, Pennsylvania. 52.5 MW of nameplate capacity across 3 generators, operated by United States Steel-Mon Valley.
Also known as EIA plant 50732
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 52.5 MWNameplate
- Generators
- 3 operatingEIA-860M, August 2026
- Operating since
- June 1943First generator online
- Operator
- United States Steel-Mon ValleyEIA operator ID 19519
- Grid
- PJMBalancing authority PJM
- Price nodes
- None linkedNo verified ISO node
- Location
- Allegheny County, PA40.3925, −79.8564
- EIA plant ID
- 50732EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Mon Valley Works produces
Free · EIA-923Net generation, 2025
483 GWh
483,152 MWh, final
Capacity factor, 2025
105.1%
2024: 93.4%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
225.4–483.2
GWh a year. Low 2015, high 2025
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 394,860 | Not reported | 12 of 12 |
| 2001 | 358,743 | Not reported | 12 of 12 |
| 2002 | 396,876 | Not reported | 12 of 12 |
| 2003 | 408,267 | Not reported | 12 of 12 |
| 2004 | 414,001 | Not reported | 12 of 12 |
| 2005 | 379,195 | Not reported | 12 of 12 |
| 2006 | 377,039 | Not reported | 12 of 12 |
| 2007 | 379,457 | Not reported | 12 of 12 |
| 2008 | 395,235 | Not reported | 12 of 12 |
| 2009 | 318,615 | Not reported | 12 of 12 |
| 2010 | 367,292 | 79.9% | 12 of 12 |
| 2011 | 426,226 | 92.7% | 12 of 12 |
| 2012 | 405,834 | 88.0% | 12 of 12 |
| 2013 | 437,461 | 95.1% | 12 of 12 |
| 2014 | 256,798 | 55.8% | 12 of 12 |
| 2015 | 225,380 | 49.0% | 12 of 12 |
| 2016 | 323,910 | Not reported | 12 of 12 |
| 2017 | 282,327 | Not reported | 12 of 12 |
| 2018 | 345,472 | 75.1% | 12 of 12 |
| 2019 | 398,482 | 86.6% | 12 of 12 |
| 2020 | 466,160 | 101.1% | 12 of 12 |
| 2021 | 450,493 | 98.0% | 12 of 12 |
| 2022 | 416,204 | 90.5% | 12 of 12 |
| 2023 | 473,700 | 103.0% | 12 of 12 |
| 2024 | 430,716 | 93.4% | 12 of 12 |
| 2025 | 483,152 | 105.1% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free accountNo verified ISO price node is linked to this plant, or its price history could not load.
Emissions
Free · EPA CAMPDCO₂, 2025
Not reported
US short tons. 2024: Not reported
SO₂, 2025
Not reported
US short tons
NOx, 2025
130
US short tons
0 of 3 EPA units reported CO₂ in 2025 (ETBLR1, ETBLR2, ETBLR3), matched to EIA plant 50732 through the EPA–EIA crosswalk.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| GEN1 | Other Gases | 25.0 | June 1943 |
| GEN2 | Other Gases | 25.0 | June 1943 |
| GEN3 | Other Gases | 2.5 | February 2002 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists United States Steel-Mon Valley as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Generation potential vs reported
Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.
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Questions about Mon Valley Works
How much power does Mon Valley Works produce?
Mon Valley Works reported 483,152 MWh (483 GWh) of net generation in 2025, a 105.1% capacity factor on 52.5 MW of nameplate capacity.
Where is Mon Valley Works?
Mon Valley Works is in Allegheny County, Pennsylvania, at 40.3925, −79.8564. It is in the PJM Interconnection, LLC balancing area (PJM).
Who operates Mon Valley Works?
EIA-860M for August 2026 lists United States Steel-Mon Valley as the operator (EIA operator ID 19519). The operator is not always the owner.
When did Mon Valley Works start operating?
Its first generator began operating in June 1943, according to EIA-860M.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- EPA CAMPD annual emissions through the EPA–EIA crosswalk, 1995 to 2025
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page