Nameplate capacity
27 MW
Rank in Pennsylvania
#119
of 273 plants
In service since
1971
May 1971
Details
- Primary fuel
- Other
- Technology
- Petroleum Liquids
- Operator
- Orrtanna Power, LLC
- County
- Adams County
- Generating units
- 1
- Share of state capacity
- 0.05%
- Rank among other plants in Pennsylvania
- #20 of 58
- EIA plant code
- 3112
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Petroleum Liquids | 27 MW | 20 MW | 1971 | 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
| Piney | Hydro | 30 MW |
| Forward Windpower LLC | Wind | 29 MW |
| Locust Ridge | Wind | 26 MW |
| Indiana University of Pennsylvania | Natural gas | 24 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 27 MW solar plant and a 27 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