Marcus Hook Energy LP
Delaware County, Pennsylvania · EIA plant ID 55801 · Operator: FPL Energy Marcus Hook LP
Nameplate836MWSummer 877 MW
Generators4in service
Net generation5,850GWh12 mo to Aug 2026
Capacity factor76%gas/coal/oil units, summer MW
Heat rate7,264Btu/kWhfossil units, electric fuel, HHV
First online2004Runs 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) |
|---|---|---|---|
| 2005 | 1,075.7 | 17.2% | 7,467 |
| 2006 | 2,188.8 | 34.8% | 7,541 |
| 2007 | 2,377 | 37.8% | 7,554 |
| 2008 | 2,719 | 43.1% | 7,481 |
| 2009 | 3,710.6 | 59.0% | 7,482 |
| 2010 | 4,331.8 | 68.9% | 7,418 |
| 2011 | 4,026.4 | 64.1% | 7,395 |
| 2012 | 4,603.6 | 72.1% | 7,426 |
| 2013 | 4,593 | 68.5% | 7,400 |
| 2014 | 5,090 | 74.6% | 7,281 |
| 2015 | 4,526.1 | 65.8% | 7,308 |
| 2016 | 5,030.3 | 72.9% | 7,259 |
| 2017 | 5,442.3 | 79.1% | 7,218 |
| 2018 | 4,132.6 | 60.0% | 7,298 |
| 2019 | 4,470.4 | 60.3% | 7,288 |
| 2020 | 5,189.5 | 70.2% | 7,293 |
| 2021 | 5,248 | 71.2% | 7,282 |
| 2022 | 5,444.7 | 72.7% | 7,280 |
| 2023 | 5,907.2 | 78.9% | 7,263 |
| 2024 | 6,599.1 | 85.7% | 7,251 |
| 2025 | 5,617.5 | 73.1% | 7,261 |
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 |
|---|---|---|---|---|---|---|---|---|
| CT13 | Natural Gas Fired Combined Cycle | CT | 188.2 | 190 | Dec 2004 | Operating | — | coming soon |
| CT1A | Natural Gas Fired Combined Cycle | CT | 188.2 | 190 | Dec 2004 | Operating | — | coming soon |
| CTIB | Natural Gas Fired Combined Cycle | CT | 188.2 | 190 | Dec 2004 | Operating | — | coming soon |
| STG | Natural Gas Fired Combined Cycle | CA | 271.5 | 307 | Dec 2004 | Operating | — | coming soon |
Owner / operator
Operator: FPL Energy Marcus Hook LP. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| EGCO Tower | 50.0% | 418 MW |
| Jera Energy America, LLC | 50.0% | 418 MW |
Nearby plants
Within 80 km.
| Logan Generating Company LP | retired | 2 km |
| Covanta Delaware Valley | 90 MW | 3.6 km |
| Chester Generating Station | 56 MW | 4.1 km |
| Pedricktown Cogeneration Company LP | retired | 4.5 km |
| Bridgeport Disposal Solar Farm | 1 MW | 6.4 km |
| Chester Operations | 69 MW | 6.7 km |