# Brunot Island

PJM Petroleum Liquids, Natural Gas Fired Combined Cycle · https://askthegrid.com/assets/facilities/brunot-island

Brunot Island is a natural gas-fired power facility with 365.4 MW of EIA-reported nameplate capacity in Allegheny County, Pennsylvania, registered as EIA Plant ID 3096. The plant's generating configuration is five operating generators: one 25.5-MW distillate/fuel-oil combustion turbine (1A) and three 65.3-MW natural-gas-fired combined-cycle combustion-turbine parts (2A, 2B, and 3), each with an HRSG and and one 144-MW natural-gas combined-cycle steam part (ST4, with duct burners). Commercial operation began in March 1972.

## Key facts

- Technology: Petroleum Liquids, Natural Gas Fired Combined Cycle
- Power capacity: 365.4 MW
- Operating status: operating
- Retirement: 2014

## Grid and market context

- ISO/RTO: PJM
- Balancing authority: PJM

## Source-backed facts

- Owner logo domain: genon.com — GenOn Completes $520 Million PJM Gas Plant Portfolio Financing — GenOn · confidence: medium
- Identifiers: [{"value":"3096","system":"EIA plant code"},{"value":"63032","system":"EIA utility ID"},{"value":"PJM / DUQ","system":"ISO/RTO transmission zone"},{"value":"BRUNOT ISLAND CC4","system":"PJM market resource"},{"value":"BRUNOT ISLAND CT1A","system":"PJM market resource"},{"value":"BRUNOT ISLAND CT2A","system":"PJM market resource"},{"value":"BRUNOT ISLAND CT2B","system":"PJM market resource"},{"value":"BRUNOT ISLAND CT3","system":"PJM market resource"},{"value":"3096_G_1A; 3096_G_1B; 3096_G_1C; 3096_G_2A; 3096_G_2B; 3096_G_3; 3096_G_ST4","system":"EPA generator/model identifiers"},{"value":"ER19-2142-003","system":"FERC docket"},{"value":"20260630-5379","system":"FERC accession"}] — Schedule 6A, 'Boiler / Generator Associations' · confidence: medium
- Identifiers: [{"value":"3096","system":"EIA plant code"},{"value":"63032","system":"EIA utility ID"},{"value":"PJM / DUQ","system":"ISO/RTO transmission zone"},{"value":"BRUNOT ISLAND CC4","system":"PJM market resource"},{"value":"BRUNOT ISLAND CT1A","system":"PJM market resource"},{"value":"BRUNOT ISLAND CT2A","system":"PJM market resource"},{"value":"BRUNOT ISLAND CT2B","system":"PJM market resource"},{"value":"BRUNOT ISLAND CT3","system":"PJM market resource"},{"value":"3096_G_1A; 3096_G_1B; 3096_G_1C; 3096_G_2A; 3096_G_2B; 3096_G_3; 3096_G_ST4","system":"EPA generator/model identifiers"},{"value":"ER19-2142-003","system":"FERC docket"},{"value":"20260630-5379","system":"FERC accession"}] — Source · confidence: medium
- Identifiers: [{"value":"3096","system":"EIA plant code"},{"value":"63032","system":"EIA utility ID"},{"value":"PJM / DUQ","system":"ISO/RTO transmission zone"},{"value":"BRUNOT ISLAND CC4","system":"PJM market resource"},{"value":"BRUNOT ISLAND CT1A","system":"PJM market resource"},{"value":"BRUNOT ISLAND CT2A","system":"PJM market resource"},{"value":"BRUNOT ISLAND CT2B","system":"PJM market resource"},{"value":"BRUNOT ISLAND CT3","system":"PJM market resource"},{"value":"3096_G_1A; 3096_G_1B; 3096_G_1C; 3096_G_2A; 3096_G_2B; 3096_G_3; 3096_G_ST4","system":"EPA generator/model identifiers"},{"value":"ER19-2142-003","system":"FERC docket"},{"value":"20260630-5379","system":"FERC accession"}] — Source · confidence: medium
- Identifiers: [{"value":"3096","system":"EIA plant code"},{"value":"63032","system":"EIA utility ID"},{"value":"PJM / DUQ","system":"ISO/RTO transmission zone"},{"value":"BRUNOT ISLAND CC4","system":"PJM market resource"},{"value":"BRUNOT ISLAND CT1A","system":"PJM market resource"},{"value":"BRUNOT ISLAND CT2A","system":"PJM market resource"},{"value":"BRUNOT ISLAND CT2B","system":"PJM market resource"},{"value":"BRUNOT ISLAND CT3","system":"PJM market resource"},{"value":"3096_G_1A; 3096_G_1B; 3096_G_1C; 3096_G_2A; 3096_G_2B; 3096_G_3; 3096_G_ST4","system":"EPA generator/model identifiers"},{"value":"ER19-2142-003","system":"FERC docket"},{"value":"20260630-5379","system":"FERC accession"}] — Docket Search Results - eLibrary · confidence: medium
- Description: Brunot Island is an operating 365.4 MW gas-and-oil power plant in Allegheny County, Pennsylvania. EIA plant code 3096 is associated with utility ID 63032, Brunot Island Power, LLC. PJM lists five Brunot Island market resources in the DUQ zone: CC4, CT1A, CT2A, CT2B, and CT3. The facility has an Allegheny County Title V permit covering three natural-gas turbines with heat-recovery steam generators. — Source · confidence: medium
- Description: Brunot Island is an operating 365.4 MW gas-and-oil power plant in Allegheny County, Pennsylvania. EIA plant code 3096 is associated with utility ID 63032, Brunot Island Power, LLC. PJM lists five Brunot Island market resources in the DUQ zone: CC4, CT1A, CT2A, CT2B, and CT3. The facility has an Allegheny County Title V permit covering three natural-gas turbines with heat-recovery steam generators. — Source · confidence: medium
- Identifiers.1: {"value":"63032","system":"EIA utility ID"} — Schedule 6A, 'Boiler / Generator Associations' · confidence: medium
- Identifiers.2: {"value":"PJM / DUQ","system":"ISO/RTO transmission zone"} — Source · confidence: high
- Identifiers.3: {"value":"BRUNOT ISLAND CC4","system":"PJM market resource"} — Source · confidence: high
- Identifiers.4: {"value":"BRUNOT ISLAND CT1A","system":"PJM market resource"} — Source · confidence: high
- Identifiers.5: {"value":"BRUNOT ISLAND CT2A","system":"PJM market resource"} — Source · confidence: high
- Identifiers.6: {"value":"BRUNOT ISLAND CT2B","system":"PJM market resource"} — Source · confidence: high
- Identifiers.7: {"value":"BRUNOT ISLAND CT3","system":"PJM market resource"} — Source · confidence: high
- Identifiers.8: {"value":"3096_G_1A; 3096_G_1B; 3096_G_1C; 3096_G_2A; 3096_G_2B; 3096_G_3; 3096_G_ST4","system":"EPA generator/model identifiers"} — Source · confidence: medium
- Identifiers.9: {"value":"ER19-2142-003","system":"FERC docket"} — Docket Search Results - eLibrary · confidence: medium
- Parties.0: {"relationship":"Owner / EIA utility","name":"Brunot Island Power, LLC","official_url":null} — Schedule 6A, 'Boiler / Generator Associations' · confidence: high
- Commercial operation date: 1972-03 — Source · confidence: medium
- Construction scope: Operating fossil-fuel thermal plant comprising one oil-fired simple-cycle combustion turbine (Unit 1A), three natural-gas combined-cycle combustion turbines (Units 2A, 2B, and 3), one HRSG serving each combined-cycle turbine, associated 240 MMBtu/h duct burners, one combined-cycle steam turbine (ST4), water injection and SCR controls, and one four-cell 84,000-gallon-per-minute cooling tower. The permit identifies General Electric Model 5000N for Unit 1A and General Electric Frame 7000-B turbines for Units 2A, 2B, and 3; Power Technology identifies the combined-cycle turbines as GE Power Frame 7E units and the steam boiler supplier as Amec Foster Wheeler. — Source · confidence: medium
- Construction scope: Operating fossil-fuel thermal plant comprising one oil-fired simple-cycle combustion turbine (Unit 1A), three natural-gas combined-cycle combustion turbines (Units 2A, 2B, and 3), one HRSG serving each combined-cycle turbine, associated 240 MMBtu/h duct burners, one combined-cycle steam turbine (ST4), water injection and SCR controls, and one four-cell 84,000-gallon-per-minute cooling tower. The permit identifies General Electric Model 5000N for Unit 1A and General Electric Frame 7000-B turbines for Units 2A, 2B, and 3; Power Technology identifies the combined-cycle turbines as GE Power Frame 7E units and the steam boiler supplier as Amec Foster Wheeler. — Power plant profile: Brunot Island Combined Cycle Power Plant, US · confidence: medium
- Product url: https://www.gevernova.com/gas-power/products/gas-turbines/7e — 7E Gas Turbine (7E.03) | GE Vernova · confidence: medium
- Product url: https://www.gevernova.com/gas-power/products/gas-turbines/7e — Steam Turbine Power Plant Solutions | GE Vernova · confidence: medium
- Manufacturer domain: gevernova.com — 7E Gas Turbine (7E.03) | GE Vernova · confidence: medium
- Equipment models: [{"manufacturer_domain":"gevernova.com","product_url":"https://www.gevernova.com/gas-power/products/gas-turbines","count":1,"unit_mw":25.5,"name":"General Electric Model 5000N simple-cycle combustion turbine"},{"manufacturer_domain":"gevernova.com","product_url":"https://www.gevernova.com/gas-power/products/gas-turbines/7e","count":3,"unit_mw":65.3,"name":"General Electric Frame 7000-B / GE Power Frame 7E combined-cycle combustion turbines"},{"manufacturer_domain":"gevernova.com","product_url":"https://www.gevernova.com/gas-power/products/steam-turbines","count":1,"unit_mw":144,"name":"GE Power combined-cycle steam turbine"}] — Source · confidence: medium
- Manufacturer name: General Electric / GE Power — Source · confidence: high
- Equipment models.0: {"manufacturer_domain":"gevernova.com","product_url":"https://www.gevernova.com/gas-power/products/gas-turbines","count":1,"unit_mw":25.5,"name":"General Electric Model 5000N simple-cycle combustion turbine"} — Source · confidence: medium
- Equipment models.1: {"manufacturer_domain":"gevernova.com","product_url":"https://www.gevernova.com/gas-power/products/gas-turbines/7e","count":3,"unit_mw":65.3,"name":"General Electric Frame 7000-B / GE Power Frame 7E combined-cycle combustion turbines"} — Source · confidence: medium
- Description: Brunot Island is an operating 365.4 MW gas-and-oil generating plant in Allegheny County, Pennsylvania, operated by Brunot Island Power, LLC. The 2026 county permit describes one 22 MW No. 2 fuel-oil simple-cycle turbine and three 63 MW natural-gas combined-cycle turbines, each equipped with a heat-recovery steam generator and duct burners; EPA records identify the associated waste-heat recovery Unit 4 and commercial operation of Units 2A, 2B, 3 and 4 in 1973–1974. Duquesne Light sold its generating assets to Orion Power Midwest in approximately May 2000; Reliant acquired Orion in 2001, and NRG completed its acquisition of GenOn in December 2012. Orion announced a natural-gas combined-cycle repowering in 2001, and GenOn later included Brunot Island in its Heritage portfolio. — Source · confidence: medium
- Description: Brunot Island is an operating 365.4 MW gas-and-oil generating plant in Allegheny County, Pennsylvania, operated by Brunot Island Power, LLC. The 2026 county permit describes one 22 MW No. 2 fuel-oil simple-cycle turbine and three 63 MW natural-gas combined-cycle turbines, each equipped with a heat-recovery steam generator and duct burners; EPA records identify the associated waste-heat recovery Unit 4 and commercial operation of Units 2A, 2B, 3 and 4 in 1973–1974. Duquesne Light sold its generating assets to Orion Power Midwest in approximately May 2000; Reliant acquired Orion in 2001, and NRG completed its acquisition of GenOn in December 2012. Orion announced a natural-gas combined-cycle repowering in 2001, and GenOn later included Brunot Island in its Heritage portfolio. — Source · confidence: medium
- Quality notes: ["The 365.4 MW plant total and the 2026 county permit’s four-turbine description are different reporting views; the permit separately identifies the associated waste-heat recovery Unit 4.","The May 2000 transaction was a generating-asset divestiture by Duquesne Light to Orion Power Midwest; no Brunot-specific sale consideration is disclosed in the cited records.","The Heritage Chapter 11 materials describe a potential sale transaction, while the cited case overview records plan effectiveness on 2023-11-21.","The county permit states that Units 1B and 1C were rendered inoperable in 2014; this is a unit-status change, not evidence of whole-plant retirement."] — Source · confidence: medium
- Quality notes: ["The 365.4 MW plant total and the 2026 county permit’s four-turbine description are different reporting views; the permit separately identifies the associated waste-heat recovery Unit 4.","The May 2000 transaction was a generating-asset divestiture by Duquesne Light to Orion Power Midwest; no Brunot-specific sale consideration is disclosed in the cited records.","The Heritage Chapter 11 materials describe a potential sale transaction, while the cited case overview records plan effectiveness on 2023-11-21.","The county permit states that Units 1B and 1C were rendered inoperable in 2014; this is a unit-status change, not evidence of whole-plant retirement."] — Heritage Power, LLC Bankruptcy Overview Case - Epiq 11 · confidence: medium
- Timeline: [{"event":"Original generating-station construction","date":"1894","detail":"George Westinghouse bought Brunot Island and built a coal-fired electrical generating station; the National Park Service states that a large power plant has operated there ever since."},{"event":"Initial modern plant operation","date":"1972","detail":"A contemporaneous account described Brunot Island as a six-unit oil-fired simple-cycle peaking facility that began operation in 1972."},{"event":"Commercial operation of Units 2A, 2B, 3 and 4","date":"1973-1974","detail":"EPA records for ORISPL 3096 state that Units 2A, 2B, 3 and 4 commenced commercial operation in 1973 and 1974."},{"event":"Acquisition from Duquesne Light","date":"2000-05","detail":"The Federal Register stated that Orion Power Midwest’s acquisition of Duquesne Light’s generating assets was expected to close on or about May 1, 2000. A contemporaneous account identifies Duquesne Light as the seller and Orion Power Holdings as the buyer of Brunot Island."},{"event":"Repowering permits and project announcement","date":"2001-08","detail":"Orion Power Midwest announced a project to repower Brunot Island as a natural-gas-fueled combined-cycle plant. County installation permits for the relevant project were issued March 5, 2001, with one permit amended August 1, 2001."},{"event":"Reliant acquisition of Orion","date":"2001-10","detail":"Reliant Resources’ transaction to acquire Orion Power Holdings and its subsidiaries was recorded in an October 22, 2001 FERC filing; contemporary reporting states that Reliant acquired Orion in 2001."},{"event":"NRG acquisition of GenOn","date":"2012-12-14","detail":"NRG completed its merger with GenOn on December 14, 2012, with GenOn continuing as a wholly owned NRG subsidiary. NRG’s transaction materials listed Brunot Island among the GenOn generation assets."},{"event":"Partial unit status change","date":"2014","detail":"The county permit states that Units 1B and 1C were rendered inoperable in 2014."},{"event":"Heritage portfolio financing","date":"2019-08-02","detail":"GenOn Holdings closed a $520 million seven-year term loan B secured by a portion of the Heritage Power portfolio, which included Brunot Island, plus nearly $100 million in revolving-credit and letter-of-credit facilities."},{"event":"Heritage Chapter 11 restructuring","date":"2023-01","detail":"Brunot Island Power, LLC was listed among the Heritage Power Chapter 11 debtors. The restructuring documents described a possible standalone sale of substantially all debtor assets if the plan transaction failed."},{"event":"Plan effective date","date":"2023-11-21","detail":"The Heritage bankruptcy case administrator reported that the plan’s effective date occurred on November 21, 2023; the cited record does not identify this as a completed sale of Brunot Island."},{"event":"Current permit configuration","date":"2026-01-15","detail":"The Allegheny County Health Department technical support document described the operating source as one 22 MW No. 2 fuel-oil simple-cycle turbine and three 63 MW natural-gas combined-cycle turbines with HRSGs and duct burners."}] — Brunot Island (U.S. National Park Service) · confidence: medium
- Timeline: [{"event":"Original generating-station construction","date":"1894","detail":"George Westinghouse bought Brunot Island and built a coal-fired electrical generating station; the National Park Service states that a large power plant has operated there ever since."},{"event":"Initial modern plant operation","date":"1972","detail":"A contemporaneous account described Brunot Island as a six-unit oil-fired simple-cycle peaking facility that began operation in 1972."},{"event":"Commercial operation of Units 2A, 2B, 3 and 4","date":"1973-1974","detail":"EPA records for ORISPL 3096 state that Units 2A, 2B, 3 and 4 commenced commercial operation in 1973 and 1974."},{"event":"Acquisition from Duquesne Light","date":"2000-05","detail":"The Federal Register stated that Orion Power Midwest’s acquisition of Duquesne Light’s generating assets was expected to close on or about May 1, 2000. A contemporaneous account identifies Duquesne Light as the seller and Orion Power Holdings as the buyer of Brunot Island."},{"event":"Repowering permits and project announcement","date":"2001-08","detail":"Orion Power Midwest announced a project to repower Brunot Island as a natural-gas-fueled combined-cycle plant. County installation permits for the relevant project were issued March 5, 2001, with one permit amended August 1, 2001."},{"event":"Reliant acquisition of Orion","date":"2001-10","detail":"Reliant Resources’ transaction to acquire Orion Power Holdings and its subsidiaries was recorded in an October 22, 2001 FERC filing; contemporary reporting states that Reliant acquired Orion in 2001."},{"event":"NRG acquisition of GenOn","date":"2012-12-14","detail":"NRG completed its merger with GenOn on December 14, 2012, with GenOn continuing as a wholly owned NRG subsidiary. NRG’s transaction materials listed Brunot Island among the GenOn generation assets."},{"event":"Partial unit status change","date":"2014","detail":"The county permit states that Units 1B and 1C were rendered inoperable in 2014."},{"event":"Heritage portfolio financing","date":"2019-08-02","detail":"GenOn Holdings closed a $520 million seven-year term loan B secured by a portion of the Heritage Power portfolio, which included Brunot Island, plus nearly $100 million in revolving-credit and letter-of-credit facilities."},{"event":"Heritage Chapter 11 restructuring","date":"2023-01","detail":"Brunot Island Power, LLC was listed among the Heritage Power Chapter 11 debtors. The restructuring documents described a possible standalone sale of substantially all debtor assets if the plan transaction failed."},{"event":"Plan effective date","date":"2023-11-21","detail":"The Heritage bankruptcy case administrator reported that the plan’s effective date occurred on November 21, 2023; the cited record does not identify this as a completed sale of Brunot Island."},{"event":"Current permit configuration","date":"2026-01-15","detail":"The Allegheny County Health Department technical support document described the operating source as one 22 MW No. 2 fuel-oil simple-cycle turbine and three 63 MW natural-gas combined-cycle turbines with HRSGs and duct burners."}] — Source · confidence: medium
- Timeline: [{"event":"Original generating-station construction","date":"1894","detail":"George Westinghouse bought Brunot Island and built a coal-fired electrical generating station; the National Park Service states that a large power plant has operated there ever since."},{"event":"Initial modern plant operation","date":"1972","detail":"A contemporaneous account described Brunot Island as a six-unit oil-fired simple-cycle peaking facility that began operation in 1972."},{"event":"Commercial operation of Units 2A, 2B, 3 and 4","date":"1973-1974","detail":"EPA records for ORISPL 3096 state that Units 2A, 2B, 3 and 4 commenced commercial operation in 1973 and 1974."},{"event":"Acquisition from Duquesne Light","date":"2000-05","detail":"The Federal Register stated that Orion Power Midwest’s acquisition of Duquesne Light’s generating assets was expected to close on or about May 1, 2000. A contemporaneous account identifies Duquesne Light as the seller and Orion Power Holdings as the buyer of Brunot Island."},{"event":"Repowering permits and project announcement","date":"2001-08","detail":"Orion Power Midwest announced a project to repower Brunot Island as a natural-gas-fueled combined-cycle plant. County installation permits for the relevant project were issued March 5, 2001, with one permit amended August 1, 2001."},{"event":"Reliant acquisition of Orion","date":"2001-10","detail":"Reliant Resources’ transaction to acquire Orion Power Holdings and its subsidiaries was recorded in an October 22, 2001 FERC filing; contemporary reporting states that Reliant acquired Orion in 2001."},{"event":"NRG acquisition of GenOn","date":"2012-12-14","detail":"NRG completed its merger with GenOn on December 14, 2012, with GenOn continuing as a wholly owned NRG subsidiary. NRG’s transaction materials listed Brunot Island among the GenOn generation assets."},{"event":"Partial unit status change","date":"2014","detail":"The county permit states that Units 1B and 1C were rendered inoperable in 2014."},{"event":"Heritage portfolio financing","date":"2019-08-02","detail":"GenOn Holdings closed a $520 million seven-year term loan B secured by a portion of the Heritage Power portfolio, which included Brunot Island, plus nearly $100 million in revolving-credit and letter-of-credit facilities."},{"event":"Heritage Chapter 11 restructuring","date":"2023-01","detail":"Brunot Island Power, LLC was listed among the Heritage Power Chapter 11 debtors. The restructuring documents described a possible standalone sale of substantially all debtor assets if the plan transaction failed."},{"event":"Plan effective date","date":"2023-11-21","detail":"The Heritage bankruptcy case administrator reported that the plan’s effective date occurred on November 21, 2023; the cited record does not identify this as a completed sale of Brunot Island."},{"event":"Current permit configuration","date":"2026-01-15","detail":"The Allegheny County Health Department technical support document described the operating source as one 22 MW No. 2 fuel-oil simple-cycle turbine and three 63 MW natural-gas combined-cycle turbines with HRSGs and duct burners."}] — Source · confidence: medium
- Timeline: [{"event":"Original generating-station construction","date":"1894","detail":"George Westinghouse bought Brunot Island and built a coal-fired electrical generating station; the National Park Service states that a large power plant has operated there ever since."},{"event":"Initial modern plant operation","date":"1972","detail":"A contemporaneous account described Brunot Island as a six-unit oil-fired simple-cycle peaking facility that began operation in 1972."},{"event":"Commercial operation of Units 2A, 2B, 3 and 4","date":"1973-1974","detail":"EPA records for ORISPL 3096 state that Units 2A, 2B, 3 and 4 commenced commercial operation in 1973 and 1974."},{"event":"Acquisition from Duquesne Light","date":"2000-05","detail":"The Federal Register stated that Orion Power Midwest’s acquisition of Duquesne Light’s generating assets was expected to close on or about May 1, 2000. A contemporaneous account identifies Duquesne Light as the seller and Orion Power Holdings as the buyer of Brunot Island."},{"event":"Repowering permits and project announcement","date":"2001-08","detail":"Orion Power Midwest announced a project to repower Brunot Island as a natural-gas-fueled combined-cycle plant. County installation permits for the relevant project were issued March 5, 2001, with one permit amended August 1, 2001."},{"event":"Reliant acquisition of Orion","date":"2001-10","detail":"Reliant Resources’ transaction to acquire Orion Power Holdings and its subsidiaries was recorded in an October 22, 2001 FERC filing; contemporary reporting states that Reliant acquired Orion in 2001."},{"event":"NRG acquisition of GenOn","date":"2012-12-14","detail":"NRG completed its merger with GenOn on December 14, 2012, with GenOn continuing as a wholly owned NRG subsidiary. NRG’s transaction materials listed Brunot Island among the GenOn generation assets."},{"event":"Partial unit status change","date":"2014","detail":"The county permit states that Units 1B and 1C were rendered inoperable in 2014."},{"event":"Heritage portfolio financing","date":"2019-08-02","detail":"GenOn Holdings closed a $520 million seven-year term loan B secured by a portion of the Heritage Power portfolio, which included Brunot Island, plus nearly $100 million in revolving-credit and letter-of-credit facilities."},{"event":"Heritage Chapter 11 restructuring","date":"2023-01","detail":"Brunot Island Power, LLC was listed among the Heritage Power Chapter 11 debtors. The restructuring documents described a possible standalone sale of substantially all debtor assets if the plan transaction failed."},{"event":"Plan effective date","date":"2023-11-21","detail":"The Heritage bankruptcy case administrator reported that the plan’s effective date occurred on November 21, 2023; the cited record does not identify this as a completed sale of Brunot Island."},{"event":"Current permit configuration","date":"2026-01-15","detail":"The Allegheny County Health Department technical support document described the operating source as one 22 MW No. 2 fuel-oil simple-cycle turbine and three 63 MW natural-gas combined-cycle turbines with HRSGs and duct burners."}] — Heritage Power, LLC Bankruptcy Overview Case - Epiq 11 · confidence: medium
- Quality notes.0: The 365.4 MW plant total and the 2026 county permit’s four-turbine description are different reporting views; the permit separately identifies the associated waste-heat recovery Unit 4. — Brunot Island (U.S. National Park Service) · confidence: high
- Quality notes.2: The Heritage Chapter 11 materials describe a potential sale transaction, while the cited case overview records plan effectiveness on 2023-11-21. — Heritage Power, LLC Bankruptcy Overview Case - Epiq 11 · confidence: medium
- Quality notes.3: The county permit states that Units 1B and 1C were rendered inoperable in 2014; this is a unit-status change, not evidence of whole-plant retirement. — Source · confidence: high
- Timeline.0: {"event":"Original generating-station construction","date":"1894","detail":"George Westinghouse bought Brunot Island and built a coal-fired electrical generating station; the National Park Service states that a large power plant has operated there ever since."} — Brunot Island (U.S. National Park Service) · confidence: high
- Timeline.2: {"event":"Commercial operation of Units 2A, 2B, 3 and 4","date":"1973-1974","detail":"EPA records for ORISPL 3096 state that Units 2A, 2B, 3 and 4 commenced commercial operation in 1973 and 1974."} — Source · confidence: high
- Timeline.3: {"event":"Acquisition from Duquesne Light","date":"2000-05","detail":"The Federal Register stated that Orion Power Midwest’s acquisition of Duquesne Light’s generating assets was expected to close on or about May 1, 2000. A contemporaneous account identifies Duquesne Light as the seller and Orion Power Holdings as the buyer of Brunot Island."} — We Take Brunot in the Morning! · confidence: high
- Timeline.4: {"event":"Repowering permits and project announcement","date":"2001-08","detail":"Orion Power Midwest announced a project to repower Brunot Island as a natural-gas-fueled combined-cycle plant. County installation permits for the relevant project were issued March 5, 2001, with one permit amended August 1, 2001."} — Source · confidence: high
- Timeline.5: {"event":"Reliant acquisition of Orion","date":"2001-10","detail":"Reliant Resources’ transaction to acquire Orion Power Holdings and its subsidiaries was recorded in an October 22, 2001 FERC filing; contemporary reporting states that Reliant acquired Orion in 2001."} — We Take Brunot in the Morning! · confidence: medium
- Timeline.6: {"event":"NRG acquisition of GenOn","date":"2012-12-14","detail":"NRG completed its merger with GenOn on December 14, 2012, with GenOn continuing as a wholly owned NRG subsidiary. NRG’s transaction materials listed Brunot Island among the GenOn generation assets."} — Source · confidence: high
- Timeline.7: {"event":"Partial unit status change","date":"2014","detail":"The county permit states that Units 1B and 1C were rendered inoperable in 2014."} — Source · confidence: high
- Timeline.10: {"event":"Plan effective date","date":"2023-11-21","detail":"The Heritage bankruptcy case administrator reported that the plan’s effective date occurred on November 21, 2023; the cited record does not identify this as a completed sale of Brunot Island."} — Heritage Power, LLC Bankruptcy Overview Case - Epiq 11 · confidence: high
- Timeline.11: {"event":"Current permit configuration","date":"2026-01-15","detail":"The Allegheny County Health Department technical support document described the operating source as one 22 MW No. 2 fuel-oil simple-cycle turbine and three 63 MW natural-gas combined-cycle turbines with HRSGs and duct burners."} — Source · confidence: high
- Acquisition date: 2012-12-14 — Source · confidence: medium
- Retirement date: 2014 — ALLEGHENY COUNTY HEALTH DEPARTMENT · confidence: medium
- Retirement scope: unit — ALLEGHENY COUNTY HEALTH DEPARTMENT · confidence: medium
- Resource type: PJM capacity resources with mixed classifications: CT1A is listed as Other; CC4, CT2A, CT2B, and CT3 are listed as gas combined-cycle resources. — Sheet1 · confidence: medium
- Resource type: PJM capacity resources with mixed classifications: CT1A is listed as Other; CC4, CT2A, CT2B, and CT3 are listed as gas combined-cycle resources. — 2024 Annual State of the Market Report for PJM · confidence: medium
- Status detail: The EIA-based plant record lists Brunot Island as operational with five operational units and no planned units. The January 15, 2026 permit review states that Units 1B and 1C were rendered inoperable in 2014; this is a unit-level condition, not a whole-plant retirement. The active permit covers one fuel-oil simple-cycle turbine and three natural-gas combined-cycle turbines. — ALLEGHENY COUNTY HEALTH DEPARTMENT · confidence: medium

## Timeline

- 1894 — Original generating-station construction
  George Westinghouse bought Brunot Island and built a coal-fired electrical generating station; the National Park Service states that a large power plant has operated there ever since.
  Source: Brunot Island (U.S. National Park Service) (https://www.nps.gov/articles/000/brunot-island.htm)
- 1972 — Initial modern plant operation
  A contemporaneous account described Brunot Island as a six-unit oil-fired simple-cycle peaking facility that began operation in 1972.
  Source: NEWS SUMMARY - Maryland Daily Record (https://www.thedailyrecord.com/2001/08/16/news-summary-200/)
- 1973-1974 — Commercial operation of Units 2A, 2B, 3 and 4
  EPA records for ORISPL 3096 state that Units 2A, 2B, 3 and 4 commenced commercial operation in 1973 and 1974.
  Source: Source (https://www.epa.gov/sites/default/files/2015-06/documents/brunot_island_station.pdf)
- 2001-08 — Repowering permits and project announcement
  Orion Power Midwest announced a project to repower Brunot Island as a natural-gas-fueled combined-cycle plant. County installation permits for the relevant project were issued March 5, 2001, with one permit amended August 1, 2001.
  Source: Source (https://www.alleghenycounty.us/files/assets/county/v/1/government/health/documents/air-quality/title-v/brunot-island-tvrv.pdf)
- 2012-12-14 — NRG acquisition of GenOn
  NRG completed its merger with GenOn on December 14, 2012, with GenOn continuing as a wholly owned NRG subsidiary. NRG’s transaction materials listed Brunot Island among the GenOn generation assets.
  Source: Source (https://www.sec.gov/Archives/edgar/data/1013871/000101387114000003/a201310-k.htm)
- 2014 — Partial unit status change
  The county permit states that Units 1B and 1C were rendered inoperable in 2014.
  Source: Source (https://www.alleghenycounty.us/files/assets/county/v/1/government/health/documents/air-quality/title-v/brunot-island-tvrv.pdf)
- 2019-08-02 — Heritage portfolio financing
  GenOn Holdings closed a $520 million seven-year term loan B secured by a portion of the Heritage Power portfolio, which included Brunot Island, plus nearly $100 million in revolving-credit and letter-of-credit facilities.
  Source: GenOn Completes $520 Million PJM Gas Plant Portfolio Financing — GenOn (https://www.genon.com/genon-news/520-million-pjm-gas-plant-portfolio-financing)
- 2023-01 — Heritage Chapter 11 restructuring
  Brunot Island Power, LLC was listed among the Heritage Power Chapter 11 debtors. The restructuring documents described a possible standalone sale of substantially all debtor assets if the plan transaction failed.
  Source: Case 23-90032 Document 17 Filed in TXSB on 01/25/23 Page 1 of 31 IN THE UNITED STATES BANKRUPTCY COURT FOR (https://www.coleschotz.com/wp-content/uploads/2023/01/Heritage-Power-First-Day-Declaration.pdf)
- 2026-01-15 — Current permit configuration
  The Allegheny County Health Department technical support document described the operating source as one 22 MW No. 2 fuel-oil simple-cycle turbine and three 63 MW natural-gas combined-cycle turbines with HRSGs and duct burners.
  Source: Source (https://www.alleghenycounty.us/files/assets/county/v/1/government/health/documents/air-quality/title-v/brunot-island-tvrv.pdf)

## Sources

- [GenOn Completes $520 Million PJM Gas Plant Portfolio Financing — GenOn](https://www.genon.com/genon-news/520-million-pjm-gas-plant-portfolio-financing) — genon.com · tier other
- [Schedule 6A, 'Boiler / Generator Associations'](https://downloads.regulations.gov/EPA-R06-OAR-2025-0197-0061/attachment_16.pdf) — downloads.regulations.gov · tier regulatory
- [Source](https://www.pjm.com/-/media/DotCom/etools/capacity-exchange/erpm-designated.csv) — pjm.com · tier other
- [Source](https://downloads.regulations.gov/EPA-HQ-OAR-2009-0491-4507/content.pdf) — downloads.regulations.gov · tier regulatory
- [Docket Search Results - eLibrary](https://elibrary.ferc.gov/eLibrary/docketsheet?docket_number=ER19-2142-003&sub_docket=All&dt_from=1960-01-01&dt_to=2025-12-12&chklegadata=false&pageNm=dsearch&date_range=custom&search_type=docket&date_type=filed_date&sub_docket_q=Allsub&sid=962892c7-a9d2-4b6e-949f-8317f2f20481) — elibrary.ferc.gov · tier regulatory
- [Source](https://www.alleghenycounty.us/files/assets/county/v/1/government/health/documents/air-quality/enforcement/actions/2024-actions/brunot-island.pdf) — alleghenycounty.us · tier other
- [Big Idea: Pittsburgh's next marquee development site is in the middle of the Ohio River | Pittsburgh Post-Gazette](https://www.post-gazette.com/opinion/editorials/2025/09/25/big-idea-brunot-island-power-plant-herrs-washingtons-landing/stories/202509240075) — post-gazette.com · tier other
- [A look at the history of two Northside islands: Part 1](https://www.thenorthsidechronicle.com/article/489,a-look-at-the-history-of-two-northside-islands-part-1) — thenorthsidechronicle.com · tier other
- [Minor Permit - blank](https://www.alleghenycounty.us/files/assets/county/v/1/government/health/documents/air-quality/title-v/brunot-island-tvop.pdf) — alleghenycounty.us · tier other
- [Source](https://www.epa.gov/sites/default/files/2015-06/documents/brunot_island_station.pdf) — epa.gov · tier regulatory
- [ALLEGHENY COUNTY HEALTH DEPARTMENT](https://www.alleghenycounty.us/files/assets/county/v/1/government/health/documents/air-quality/title-v/brunot-island-tvrv.pdf) — alleghenycounty.us · tier other
- [Power plant profile: Brunot Island Combined Cycle Power Plant, US](https://www.power-technology.com/data-insights/power-plant-profile-brunot-island-combined-cycle-power-plant-us/) — power-technology.com · tier other
- [7E Gas Turbine (7E.03) | GE Vernova](https://www.gevernova.com/gas-power/products/gas-turbines/7e) — gevernova.com · tier other
- [Steam Turbine Power Plant Solutions | GE Vernova](https://www.gevernova.com/gas-power/products/steam-turbines) — gevernova.com · tier other
- [Brunot Island (U.S. National Park Service)](https://www.nps.gov/articles/000/brunot-island.htm) — nps.gov · tier regulatory
- [Source](https://www.sec.gov/Archives/edgar/data/1013871/000101387114000003/a201310-k.htm) — sec.gov · tier regulatory
- [Case 23-90032 Document 17 Filed in TXSB on 01/25/23 Page 1 of 31 IN THE UNITED STATES BANKRUPTCY COURT FOR](https://www.coleschotz.com/wp-content/uploads/2023/01/Heritage-Power-First-Day-Declaration.pdf) — coleschotz.com · tier other
- [Heritage Power, LLC Bankruptcy Overview Case: 23-90032 | Epiq](https://dm.epiq11.com/case/heritagepower/info) — dm.epiq11.com · tier other
- [NEWS SUMMARY - Maryland Daily Record](https://www.thedailyrecord.com/2001/08/16/news-summary-200/) — thedailyrecord.com · tier other
- [We Take Brunot in the Morning!](https://www.pghcitypaper.com/news-2/we-take-brunot-in-the-morning-1335250/) — pghcitypaper.com · tier other
- [Source](https://investors.nrg.com/static-files/443f0452-9b97-4936-9c15-da9181122994) — investors.nrg.com · tier other
- [Source](https://www.sec.gov/Archives/edgar/data/1126294/000112629416000024/genon201510-k.htm) — sec.gov · tier regulatory
- [Sheet1](https://www.pjm.com/-/media/DotCom/markets-ops/rpm/rpm-auction-info/2025-2026/2025-2026-rpm-existing-resource-list-post.xlsx) — pjm.com · tier other
- [2024 Annual State of the Market Report for PJM](https://www.monitoringanalytics.com/reports/PJM_State_of_the_Market/2024/2024-som-pjm-press-briefing.pdf) — monitoringanalytics.com · tier other

## Data quality

- The 365.4 MW plant total and the 2026 county permit’s four-turbine description are different reporting views; the permit separately identifies the associated waste-heat recovery Unit 4. The May 2000 transaction was a generating-asset divestiture by Duquesne Light to Orion Power Midwest; no Brunot-specific sale consideration is disclosed in the cited records. The county permit states that Units 1B and 1C were rendered inoperable in 2014; this is a unit-status change, not evidence of whole-plant retirement.

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