Grays Ferry Cogeneration
Natural gas power plant · Philadelphia County, Pennsylvania
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Fired Combustion Turbine
- Operator
- Grays Ferry Cogen Partnership
- County
- Philadelphia County
- Generating units
- 2
- Share of state capacity
- 0.36%
- Rank among natural gas plants in Pennsylvania
- #32 of 72
- EIA plant code
- 54785
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| GEN2 | Natural Gas Fired Combustion Turbine | 135 MW | 114 MW | 1997 | Operating |
| GEN1 | Natural Gas Steam Turbine | 58 MW | 57 MW | 1997 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in Pennsylvania
| Holtwood | Hydro | 247 MW |
| Portland (PA) | Other | 194 MW |
| Hazelton | Natural gas | 172 MW |
| Great Cove Solar II | Solar | 150 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 193 MW solar plant and a 193 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Pennsylvania power plants · What Pennsylvania actually generates