Brunner Island
Natural gas power plant · York County, Pennsylvania
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Steam Turbine
- Operator
- Brunner Island LLC
- County
- York County
- Generating units
- 3
- Share of state capacity
- 3.04%
- Rank among natural gas plants in Pennsylvania
- #3 of 72
- EIA plant code
- 3140
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 3 | Natural Gas Steam Turbine | 848 MW | 742 MW | 1969 | Operating |
| 2 | Natural Gas Steam Turbine | 405 MW | 363 MW | 1965 | Operating |
| 1 | Natural Gas Steam Turbine | 363 MW | 306 MW | 1961 | 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
| TalenEnergy Montour | Natural gas | 1,758 MW |
| TalenEnergy Martins Creek | Natural gas | 1,701 MW |
| Lackawanna Energy Center | Natural gas | 1,499 MW |
| York Energy Center | Natural gas | 1,449 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 1,616 MW solar plant and a 1,616 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