Chester Generating Station
Chester County, Pennsylvania · EIA plant ID 3157 · Operator: Exelon Power
Nameplate56MWSummer 39 MW
Generators3in service
Net generation1GWh12 mo to Dec 2025
Capacity factor0%gas/coal/oil units, summer MW
Heat rate14,821Btu/kWhfossil units, electric fuel, HHV
First online1969Runs as rarely runs
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) |
|---|---|---|---|
| 2001 | 2.5 | 0.7% | 15,275 |
| 2002 | 1.1 | 0.3% | — |
| 2003 | 0.5 | 0.1% | 14,520 |
| 2004 | 0.2 | 0.1% | 15,078 |
| 2005 | 3.3 | 1.0% | 12,489 |
| 2006 | 1 | 0.3% | 14,686 |
| 2007 | 0.8 | 0.2% | 14,659 |
| 2008 | 0.8 | 0.2% | 15,020 |
| 2009 | 0.2 | 0.1% | 15,587 |
| 2010 | 1 | 0.3% | 15,251 |
| 2011 | 0.9 | 0.3% | 14,979 |
| 2012 | 0.6 | 0.2% | 14,864 |
| 2013 | 0.9 | 0.3% | 15,197 |
| 2014 | 3 | 0.9% | 12,870 |
| 2015 | 1.2 | 0.4% | 14,073 |
| 2016 | 0.3 | 0.1% | 16,884 |
| 2017 | 1 | 0.3% | 14,602 |
| 2018 | 1.6 | 0.5% | 13,069 |
| 2019 | 0.2 | 0.1% | 23,986 |
| 2020 | 0.1 | 0.0% | 18,162 |
| 2021 | 0.1 | 0.0% | 17,883 |
| 2022 | 1.8 | 0.5% | 14,102 |
| 2023 | 0.1 | 0.0% | 28,660 |
| 2024 | 0.1 | 0.0% | 18,148 |
| 2025 | 0.9 | 0.3% | 14,821 |
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 |
|---|---|---|---|---|---|---|---|---|
| 7 | Petroleum Liquids | GT | 18.6 | 13 | Feb 1969 | Operating | — | coming soon |
| 8 | Petroleum Liquids | GT | 18.6 | 13 | May 1969 | Operating | — | coming soon |
| 9 | Petroleum Liquids | GT | 18.6 | 13 | Mar 1969 | Operating | — | coming soon |
Owner / operator
Operator: Exelon Power. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Exelon Power | 100.0% | 56 MW |
Nearby plants
Within 80 km.
| Covanta Delaware Valley | 90 MW | 0.6 km |
| Chester Operations | 69 MW | 2.6 km |
| Marcus Hook Energy LP | 836 MW | 4.1 km |
| Logan Generating Company LP | retired | 4.6 km |
| Liberty Electric Power Plant | 614 MW | 5.4 km |
| Bridgeport Disposal Solar Farm | 1 MW | 5.5 km |