TJX Engine
Natural gas power plant · Philadelphia County, Pennsylvania
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Internal Combustion Engine
- Operator
- Onsite Partners, LLC
- County
- Philadelphia County
- Generating units
- 1
- Share of state capacity
- 0.01%
- Rank among natural gas plants in Pennsylvania
- #67 of 72
- EIA plant code
- 70215
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| TJXEN | Natural Gas Internal Combustion Engine | 3.0 MW | 3.0 MW | 2021 | 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
| PG Solar 1 | Solar | 3.0 MW |
| Susquehanna University Solar | Solar | 3.0 MW |
| Lincoln Financial Field | Solar | 2.9 MW |
| Allentown - Ruppsville | Solar | 2.8 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 3.0 MW solar plant and a 3.0 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