Delaware Generating Station
Other power plant · Philadelphia County, Pennsylvania
Details
- Primary fuel
- Other
- Technology
- Petroleum Liquids
- Operator
- Constellation Power, Inc
- County
- Philadelphia County
- Generating units
- 4
- Share of state capacity
- 0.15%
- Rank among other plants in Pennsylvania
- #5 of 58
- EIA plant code
- 3160
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 9 | Petroleum Liquids | 21 MW | 17 MW | 1970 | Operating |
| 10 | Petroleum Liquids | 19 MW | 13 MW | 1969 | Operating |
| 11 | Petroleum Liquids | 19 MW | 13 MW | 1969 | Operating |
| 12 | Petroleum Liquids | 19 MW | 13 MW | 1969 | 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
| Adams Solar LLC PA | Solar | 80 MW |
| Allegheny Ridge Wind Farm | Wind | 80 MW |
| Highland North Wind Farm | Wind | 75 MW |
| North Allegheny Windpower Project | Wind | 75 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 77 MW solar plant and a 77 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