Brunner IslandRetirement planned
York County, Pennsylvania · EIA plant ID 3140 · Operator: Brunner Island LLC
Nameplate1,616MWSummer 1,411 MW
Generators3in service
Net generation3,864GWh12 mo to Aug 2026
Capacity factor15%gas/coal/oil units, summer MW
Heat rate10,719Btu/kWhfossil units, electric fuel, HHV
First online1961Runs as peaking
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), gas/coal/oil units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 6,412.2 | — | — |
| 2002 | 9,995.3 | — | — |
| 2003 | 8,940.6 | 70.1% | 9,801 |
| 2004 | 10,421.7 | 81.5% | 9,579 |
| 2005 | 10,167.2 | 79.7% | 9,701 |
| 2006 | 9,133 | 71.6% | 9,813 |
| 2007 | 10,450.8 | 81.9% | 9,627 |
| 2008 | 9,957.7 | 78.2% | 9,518 |
| 2009 | 8,863.9 | 69.8% | 9,761 |
| 2010 | 10,174.2 | 80.9% | 9,753 |
| 2011 | 9,409.3 | 74.3% | 9,803 |
| 2012 | 5,961.2 | 47.0% | 10,159 |
| 2013 | 6,698.4 | 53.3% | 10,100 |
| 2014 | 5,944.4 | 47.8% | 10,147 |
| 2015 | 4,850.8 | 39.0% | 10,342 |
| 2016 | 3,267.2 | 26.2% | 11,018 |
| 2017 | 3,649.5 | 29.4% | 10,787 |
| 2018 | 1,853.3 | 15.0% | 11,848 |
| 2019 | 2,587.6 | 20.9% | 11,120 |
| 2020 | 1,840.2 | 14.8% | 11,532 |
| 2021 | 2,518.5 | 20.4% | 11,311 |
| 2022 | 3,672.8 | 29.7% | 11,201 |
| 2023 | 2,684.9 | 21.7% | 11,365 |
| 2024 | 3,400.3 | 27.4% | 11,077 |
| 2025 | 4,191.5 | 33.9% | 10,965 |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| 1 | Natural Gas Steam Turbine | ST | 363.3 | 306 | May 1961 | Operating · retirement planned | Jun 2035 | coming soon |
| 2 | Natural Gas Steam Turbine | ST | 405 | 363 | Sep 1965 | Operating · retirement planned | Jun 2035 | coming soon |
| 3 | Natural Gas Steam Turbine | ST | 847.8 | 742 | Jun 1969 | Operating · retirement planned | Jun 2035 | coming soon |
| BI1 | Conventional Steam Coal | ST | 363.3 | 321 | Jun 1961 | not_current | — | coming soon |
| BI2 | Conventional Steam Coal | ST | 405 | 378 | Oct 1965 | not_current | — | coming soon |
| BI3 | Conventional Steam Coal | ST | 790.4 | 749 | Jun 1969 | not_current | — | coming soon |
| BID1 | Petroleum Liquids | IC | 2.7 | 2.7 | Jun 1967 | Retired Feb 2018 | — | coming soon |
| BID2 | Petroleum Liquids | IC | 2.7 | 2.7 | Jun 1967 | Retired Feb 2018 | — | coming soon |
| BID3 | Petroleum Liquids | IC | 2.7 | 2 | Jun 1967 | Retired Feb 2018 | — | coming soon |
Owner / operator
Operator: Brunner Island LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Brunner Island LLC | 100.0% | 1,616 MW |
Nearby plants
Within 80 km.
| York Haven | 20 MW | 2.4 km |
| Strinestown Solar | — | 3.7 km |
| Lancaster County Resource Recovery | 36 MW | 5.3 km |
| Three Mile Island | 981 MW | 6.6 km |
| GSK York RDC Solar Facility | 3 MW | 6.7 km |
| York County Resource Recovery | 37 MW | 10.7 km |