Brunner Island — 1,616 MW gas plant, York County, PA

Brunner Island — 1,616 MW gas plant, York County, PA · Ask the Grid

Generation and physical site

EIA plant 3140 · Inventory for Aug 2026.

Reported operating nameplate by technology

Natural gas: 1,616.1 MW

Operating generators only. Battery power is in MW; stored energy is in MWh. These ratings do not establish a shared export limit.

Generator records (6)

EIA generator status and nameplate capacity for Brunner Island
Generator	Technology	Status	Power (MW)	Energy (MWh)
1	Natural Gas Steam Turbine	Operating	363.3	Unknown
2	Natural Gas Steam Turbine	Operating	405	Unknown
3	Natural Gas Steam Turbine	Operating	847.8	Unknown
BID1	Petroleum Liquids	Retired	2.7	Unknown
BID2	Petroleum Liquids	Retired	2.7	Unknown
BID3	Petroleum Liquids	Retired	2.7	Unknown

Physical map location · OpenStreetMap: 40.09601, -76.69495
Filed location · EIA: 40.09611, -76.69620

Sources and observation dates

Inventory source: EIA-860M workbook (preliminary)
EIA reporting month: Aug 2026
EIA retrieved: Oct 10, 2026
OSM extract: Oct 9, 2026
OSM last mapped edit: May 21, 2026
Map prepared: Oct 10, 2026
Field verification: Not reported

Reporting month describes the inventory. Retrieval and map preparation describe processing; an OSM edit does not establish an in-service date.

EIA source inventory

Units and generators

Operating generator records and technology attributes reported through EIA-860.

Generator	Capacity	Technology	Operation	Status
1	363.3 MW 306 MW summer	Natural Gas Steam Turbine Natural Gas · ST	May 1961 Retirement: Jun 2035	Operating
2	405 MW 363 MW summer	Natural Gas Steam Turbine Natural Gas · ST	Sep 1965 Retirement: Jun 2035	Operating
3	847.8 MW 742 MW summer	Natural Gas Steam Turbine Natural Gas · ST	Jun 1969 Retirement: Jun 2035	Operating
BID1	2.7 MW 3 MW summer	Petroleum Liquids Disillate Fuel Oil · IC	Jun 1967	Operating
BID2	2.7 MW 3 MW summer	Petroleum Liquids Disillate Fuel Oil · IC	Jun 1967	Operating
BID3	2.7 MW 2.2 MW summer	Petroleum Liquids Disillate Fuel Oil · IC	Jun 1967	Operating

Timeline and sources

Project milestones and public references behind the asset profile.

Project timeline

May 1961
May 1961
Generator enters operationEIA-860
EIA-860 lists generator 1 with this operating date.
Sep 1965
Sep 1965
Generator enters operationEIA-860
EIA-860 lists generator 2 with this operating date.
Jun 1967
Jun 1967
Generators enter operationEIA-860
EIA-860 lists generator BID1, generator BID2, generator BID3 with this operating date.
View 1 more milestoneHide 1 milestone
1. Jun 1969
  Jun 1969
  Generator enters operationEIA-860
  EIA-860 lists generator 3 with this operating date.
Apr 2010
Apr 2010
Cooling towers placed in servicepowermag.com
New forced-draft cooling towers began operation; cost approximately $100 million and rank among the largest forced-draft cooling towers in the world; designed to reduce temperature of Susquehanna River water discharges for aquatic-life protection.
Dec 6, 2016
Dec 6, 2016
Riverstone acquisition of Talen closedprnewswire....
Riverstone's acquisition of Talen Energy Corporation closed; Talen Energy Corporation common stock ceased trading on NYSE and was delisted.
Jun 2035
Jun 2035
Planned generator retirementEIA-860
EIA-860 lists a planned retirement for generator 1, generator 2, generator 3.

Sources

PublisherReferenceType

U.S. Energy Information AdministrationEIA-860 generator inventoryFederal registry

U.S. Energy Information AdministrationEIA-923 generation filingsFederal filing

files.dep.state.pa.usfiles.dep.state.pa.uspublic_source

Common questions about Brunner Island

Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.

How big is Brunner Island?

Brunner Island reports 1,616.1 MW natural gas of operating nameplate capacity. These technology ratings do not establish a common export limit. Source: EIA Aug 2026.

What kind of plant is Brunner Island?

Brunner Island is a Natural Gas Steam Turbine facility in York County, PA, participating in the PJM market.

Where is Brunner Island located?

Brunner Island is in York County, PA, inside the PJM balancing area.

Who operates Brunner Island?

Brunner Island is operated by Brunner Island LLC according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.

How much electricity does Brunner Island generate?

Brunner Island reported 3,790 GWh over the twelve months to 2026-07. Figures are net generation as filed to EIA-923.

How does Brunner Island compare to other plants?

By capacity, Brunner Island ranks #9 of 259 operating plants of the same technology nationally. It ranks #3 of 12 in PA.

Co-located assets

Plants within 25 km, nearest first, regardless of technology. Proximity is straight-line distance between mapped plant coordinates; it does not by itself establish a shared point of interconnection.

York HavenConventional HydroelectricConventional Hydroelectric20 MW2.4 km Lancaster County Resource RecoveryMunicipal Solid WasteMunicipal Solid Waste36 MW5.2 km Haleon York RDC Solar FacilitySolar PhotovoltaicSolar Photovoltaic3 MW6.7 km York County Resource RecoveryMunicipal Solid WasteMunicipal Solid Waste

Overview

Infrastructure record

Overview

Infrastructure record

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Structured profile

Generation and physical site

Reported operating nameplate by technology

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Units and generators

Performance

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Monthly generation

Grid and market context

Market registration

Nearby substations

Commercial, land, and environmental record

Transactions and agreements

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Reporting portfolio