How big is Brunot Island?

Brunot Island reports 25.5 MW petroleum + 339.9 MW natural gas of operating nameplate capacity. These technology ratings do not establish a common export limit. Source: EIA Sep 2026.

What kind of plant is Brunot Island?

Brunot Island is a Petroleum Liquids, Natural Gas Fired Combined Cycle facility in Allegheny County, PA, participating in the PJM market.

Where is Brunot Island located?

Brunot Island is in Allegheny County, PA, inside the PJM balancing area.

Who operates Brunot Island?

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

How much electricity does Brunot Island generate?

Brunot Island reported 54.1 GWh over the twelve months to 2024-12. Figures are net generation as filed to EIA-923.

How does Brunot Island compare to other plants?

By capacity, Brunot Island ranks #343 of 540 operating plants of the same technology nationally. It ranks #22 of 26 in PA.

Brunot Island — 365 MW hybrid plant, Allegheny County, PA

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Brunot Island — 365 MW hybrid plant, Allegheny County, PA · Ask the Grid

Generation and physical site

EIA plant 3096 · Inventory for Sep 2026.

Reported operating nameplate by technology

Petroleum: 25.5 MW
Natural gas: 339.9 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 (7)

EIA generator status and nameplate capacity for Brunot Island
Generator	Technology	Status	Power (MW)	Energy (MWh)
1A	Petroleum Liquids	Operating	25.5	Unknown
2A	Natural Gas Fired Combined Cycle	Operating	65.3	Unknown
2B	Natural Gas Fired Combined Cycle	Operating	65.3	Unknown
3	Natural Gas Fired Combined Cycle	Operating	65.3	Unknown
ST4	Natural Gas Fired Combined Cycle	Operating	144	Unknown
1B	Petroleum Liquids	Retired	25.5	Unknown
1C	Petroleum Liquids	Retired	25.5	Unknown

Physical map location · OpenStreetMap: 40.46464, -80.04394
Filed location · EIA: 40.46485, -80.04376

Sources and observation dates

Inventory source: EIA-860M workbook (preliminary)
EIA reporting month: Sep 2026
EIA retrieved: Oct 24, 2026
OSM extract: Oct 9, 2026
OSM last mapped edit: Feb 13, 2023
Map prepared: Oct 24, 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

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

Generator	Capacity	Technology	Operation	Status
1A	25.5 MW 18.1 MW summer	Petroleum Liquids GT	Mar 1972	Operating
2A	65.3 MW 47.4 MW summer	Natural Gas Fired Combined Cycle CT	Jun 1973	Operating
2B	65.3 MW 47 MW summer	Natural Gas Fired Combined Cycle CT	Jun 1973	Operating
3	65.3 MW 47.5 MW summer	Natural Gas Fired Combined Cycle CT	Jun 1973	Operating
ST4	144 MW 101.6 MW summer	Natural Gas Fired Combined Cycle CA	Jul 1974	Operating

Commercial, land, and environmental record

Source-backed project transactions, agreements, land records, permits, and environmental disclosures. Portfolio and adjacent-project facts remain explicitly scoped.

Land and environmental record

Emissions Controls

Jan 15, 2026

Simple-cycle turbine has no emission controls. Three combined-cycle turbines equipped with water injection and selective catalytic reduction (SCR) for NOx control. Cooling tower equipped with mist eliminators for particulate control.

Emissions-control equipment stated in County technical support document and Title V permit materials (2026).

Minor Permit - blank

Npdes Permit

Oct 1, 2024

Pennsylvania NPDES Permit PA0031933 authorizes Brunot Island Power LLC to discharge from Brunot Island Generating Station to Ohio River in Allegheny County. Permit issued September 23, 2024; effective October 1, 2024; expires September 30, 2029.

Exact wastewater-discharge permit and five-year term.

AUTHORIZATION TO DISCHARGE UNDER THE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM DISCHARGE REQUIREMENTS FOR INDUSTRIAL WASTEWATER FACILITIES

Sip And Permit History

Sep 12, 2019

Pennsylvania 2019 PM2.5 SIP identifies GenOn Brunot Island combined-cycle turbine as using natural gas or fuel oil with water injection and SCR, plus mist eliminators, meeting RACT requirements. County permit history identifies installation permits #0056-I001a, #0056-I001b, #0056-I001c, RACT Installation Permit #0056-I002, and prior operating permit #1065009-000-23600.

State and county air-permitting milestones and applicable emissions-control requirements documented.

Source

Site Area And Location

2026

Brunot Island is a 129-acre island in the Ohio River. FERC/EIA record identifies plant code 3096 as Brunot Island, Allegheny County, Pennsylvania.

Official EIA/FERC record corrects supplied Texas location. A Pittsburgh municipal page states facilities on island are owned/operated by Duquesne Light Company. Exact generating-station parcel title not established in reviewed county records.

MBR | Index

Title V Air Permit

Jan 15, 2026

Allegheny County Title V Operating Permit #0056-OP26 issued January 15, 2026 for Brunot Island Generating Station. Permit identifies Brunot Island Power LLC as permittee/owner; facility located Brunot Island, Pittsburgh, PA 15233.

Current air permit identifier and permittee/owner record for exact EIA plant code 3096.

Minor Permit - blank

Mapped facility footprint

Overview

Overview

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Infrastructure record

Profile

Structured profile

Generation and physical site

Reported operating nameplate by technology

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Units and generators

Performance

Peer context

Monthly generation

Grid and market context

Market registration

Nearby substations

Commercial, land, and environmental record

Land and environmental record

Related parties and identifiers

Relationship graph

Parties and identifiers

Reporting portfolio

Timeline and sources

Project timeline

Sources

Common questions about Brunot Island