Clairton Works
Allegheny County, Pennsylvania · EIA plant ID 50729 · Operator: United States Steel- Clairton
Nameplate31MWSummer 24 MW
Generators2in service
Net generation124GWh12 mo to Dec 2025
Capacity factor59%gas/coal/oil units, summer MW
Heat rate4,374Btu/kWhfossil units, electric fuel, HHV
First online1955Runs as baseload
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), gas/coal/oil units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2002 | 125 | 64.9% | — |
| 2003 | 108.1 | 56.1% | — |
| 2004 | 129.3 | 66.9% | — |
| 2005 | 128.1 | 66.5% | 4,627 |
| 2006 | 124.6 | 64.6% | 4,627 |
| 2007 | 105 | 54.5% | 4,627 |
| 2008 | 118.6 | 61.4% | 4,627 |
| 2009 | 98 | 50.8% | 4,627 |
| 2010 | 92.8 | 48.1% | 4,627 |
| 2011 | 118.6 | 61.5% | 4,488 |
| 2012 | 131.3 | 68.0% | 4,488 |
| 2013 | 162.5 | 84.3% | 4,488 |
| 2014 | 174.1 | 90.3% | 4,488 |
| 2015 | 150.4 | 78.0% | 4,488 |
| 2016 | 164.8 | 78.2% | 4,374 |
| 2017 | 129.2 | 61.5% | 4,374 |
| 2018 | 129.2 | 61.5% | 4,374 |
| 2019 | 141.8 | 67.5% | 4,374 |
| 2020 | 110.1 | 52.2% | 4,374 |
| 2021 | 110.1 | 52.4% | 4,374 |
| 2022 | 128 | 60.9% | 4,374 |
| 2023 | 109.4 | 52.0% | 4,374 |
| 2024 | 120.9 | 57.4% | 4,374 |
| 2025 | 124.1 | 59.0% | 4,374 |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| GEN1 | Other Gases | ST | 21 | 16 | Jan 1955 | Operating | — | coming soon |
| GEN3 | Other Gases | ST | 10 | 8 | Jan 1955 | Operating | — | coming soon |
Owner / operator
Operator: United States Steel- Clairton. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| United States Steel- Clairton | 100.0% | 31 MW |
Nearby plants
Within 80 km.
| Braddock Lock and Dam | — | 9 km |
| Mon Valley Works | 53 MW | 9.5 km |
| ECP Uptown Campus | 6 MW | 16.8 km |
| Monongahela L&D4 Hydroelectric Project | — | 18.3 km |
| PPG Monroeville Chemicals Center | 1 MW | 19.5 km |
| Ohara CSG 1 LLC | 3 MW | 19.7 km |