Liberty Electric Power Plant
Delaware County, Pennsylvania · EIA plant ID 55231 · Operator: Liberty Electric Power LLC
Nameplate614MWSummer 562 MW
Generators3in service
Net generation4,108GWh12 mo to Aug 2026
Capacity factor83%gas/coal/oil units, summer MW
Heat rate7,265Btu/kWhfossil units, electric fuel, HHV
First online2002Runs as baseload
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
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 | 1,292.9 | — | — |
| 2003 | 667.5 | 16.6% | 7,547 |
| 2004 | 1,305 | 28.1% | 7,414 |
| 2005 | 392.4 | 8.6% | 7,857 |
| 2006 | 924.2 | 20.3% | 7,391 |
| 2007 | 1,667.9 | 36.5% | 7,285 |
| 2008 | 2,274.5 | 47.9% | 7,262 |
| 2009 | 2,952.6 | 62.3% | 7,236 |
| 2010 | 3,166.6 | 66.8% | 7,299 |
| 2011 | 3,095.1 | 65.3% | 7,286 |
| 2012 | 3,801 | 80.0% | 7,213 |
| 2013 | 3,633 | 76.7% | 7,219 |
| 2014 | 3,751.7 | 79.2% | 7,273 |
| 2015 | 4,123 | 87.0% | 7,277 |
| 2016 | 4,136.5 | 85.4% | 7,231 |
| 2017 | 4,140.9 | 84.1% | 7,257 |
| 2018 | 4,273 | 86.8% | 7,172 |
| 2019 | 3,928.9 | 79.8% | 7,171 |
| 2020 | 3,757.7 | 76.1% | 7,186 |
| 2021 | 4,176.3 | 84.8% | 7,147 |
| 2022 | 3,556.3 | 72.2% | 7,234 |
| 2023 | 3,995.3 | 81.2% | 7,319 |
| 2024 | 3,900.2 | 79.0% | 7,242 |
| 2025 | 3,931.9 | 79.9% | 7,306 |
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 |
|---|---|---|---|---|---|---|---|---|
| GTG1 | Natural Gas Fired Combined Cycle | CT | 186 | 169.1 | May 2002 | Operating | — | coming soon |
| GTG2 | Natural Gas Fired Combined Cycle | CT | 186 | 169.1 | May 2002 | Operating | — | coming soon |
| STG | Natural Gas Fired Combined Cycle | CA | 242 | 223.8 | May 2002 | Operating | — | coming soon |
| 1 | — | — | 186 | 186 | planned Jan 2002 | not_current | — | coming soon |
| 2 | — | — | 186 | 186 | planned Jan 2002 | not_current | — | coming soon |
| 3 | — | — | 180 | 180 | planned Jan 2002 | not_current | — | coming soon |
Owner / operator
Operator: Liberty Electric Power LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Liberty Electric Power LLC | 100.0% | 614 MW |
Nearby plants
Within 80 km.
| Eddystone Generating Station | 862 MW | 1.2 km |
| Chester Operations | 69 MW | 2.8 km |
| Chester Generating Station | 56 MW | 5.4 km |
| Covanta Delaware Valley | 90 MW | 5.9 km |
| Paulsboro Refinery | 79 MW | 7 km |
| Bridgeport Disposal Solar Farm | 1 MW | 8.3 km |