# FirstEnergy Fort Martin Power Station

PJM Conventional Steam Coal · https://askthegrid.com/assets/facilities/firstenergy-fort-martin-power-station

FirstEnergy Fort Martin Power Station is a coal-fired power facility with 1,152 MW of EIA-reported nameplate capacity in Monongalia County, West Virginia, registered as EIA Plant ID 3943. Monongahela Power Co owns and operates the plant, a subsidiary of FirstEnergy Corp. The plant's generating configuration is two coal-fired conventional steam-coal units with pulverized, supercritical steam turbines.

## Key facts

- Technology: Conventional Steam Coal
- Power capacity: 1152 MW
- Commercial operation: 1967
- Operating status: operating
- Retirement: 2035

## Grid and market context

- ISO/RTO: PJM
- Balancing authority: PJM Interconnection, LLC (PJM)

## Source-backed facts

- Owner logo domain: firstenergycorp.com — Generation System · confidence: medium
- Owner logo domain: firstenergycorp.com — Mon Power and Potomac Edison Select Maidsville, West Virginia, Site for New Natural Gas Power Plant · confidence: medium
- Identifiers: [{"value":"3943","system":"EIA plant code"},{"value":"Units 1 and 2","system":"EIA unit identifiers"},{"value":"4770","system":"FERC EIA index record ID for plant 3943, generator 2"},{"value":"PJM","system":"ISO/RTO"},{"value":"APS","system":"PJM resource/transmission area"},{"value":"FORT MARTIN 1","system":"PJM RPM market resource"},{"value":"FORT MARTIN 2","system":"PJM RPM market resource"}] — Petition for an Alternative Mercury Monitor Certification Deadline for Units 1 and 2 at the Fort Martin Power Station (Facility ID (ORISPL) 3943) · confidence: medium
- Identifiers: [{"value":"3943","system":"EIA plant code"},{"value":"Units 1 and 2","system":"EIA unit identifiers"},{"value":"4770","system":"FERC EIA index record ID for plant 3943, generator 2"},{"value":"PJM","system":"ISO/RTO"},{"value":"APS","system":"PJM resource/transmission area"},{"value":"FORT MARTIN 1","system":"PJM RPM market resource"},{"value":"FORT MARTIN 2","system":"PJM RPM market resource"}] — Sheet1 · confidence: medium
- Description: FirstEnergy Fort Martin Power Station is a regulated coal-fired generating station in Maidsville, West Virginia, along the Monongahela River. The official station fact sheet identifies two units: Unit 1 at 552 MW, online in 1967, and Unit 2 at 546 MW, online in 1968, for 1,098 MW. Monongahela Power (Mon Power) owns and operates the station. — Generation System · confidence: medium
- Description: FirstEnergy Fort Martin Power Station is a regulated coal-fired generating station in Maidsville, West Virginia, along the Monongahela River. The official station fact sheet identifies two units: Unit 1 at 552 MW, online in 1967, and Unit 2 at 546 MW, online in 1968, for 1,098 MW. Monongahela Power (Mon Power) owns and operates the station. — Source · confidence: medium
- Description: FirstEnergy Fort Martin Power Station is a regulated coal-fired generating station in Maidsville, West Virginia, along the Monongahela River. The official station fact sheet identifies two units: Unit 1 at 552 MW, online in 1967, and Unit 2 at 546 MW, online in 1968, for 1,098 MW. Monongahela Power (Mon Power) owns and operates the station. — Microsoft Word - 2025 MATS Repeal Comments Final for signature (002) · confidence: medium
- Parties: [{"relationship":"Owner","name":"Monongahela Power Company (Mon Power)","official_url":"https://www.firstenergycorp.com/mon_power.html"},{"relationship":"Operator","name":"Monongahela Power Company (Mon Power)","official_url":"https://www.firstenergycorp.com/mon_power.html"},{"relationship":"Parent company","name":"FirstEnergy Corp.","official_url":"https://www.firstenergycorp.com/"}] — Microsoft Word - 2025 MATS Repeal Comments Final for signature (002) · confidence: high
- Parties: [{"relationship":"Owner","name":"Monongahela Power Company (Mon Power)","official_url":"https://www.firstenergycorp.com/mon_power.html"},{"relationship":"Operator","name":"Monongahela Power Company (Mon Power)","official_url":"https://www.firstenergycorp.com/mon_power.html"},{"relationship":"Parent company","name":"FirstEnergy Corp.","official_url":"https://www.firstenergycorp.com/"}] — Mon Power and Potomac Edison Select Maidsville, West Virginia, Site for New Natural Gas Power Plant · confidence: high
- Canonical name: FirstEnergy Fort Martin Power Station — Petition for an Alternative Mercury Monitor Certification Deadline for Units 1 and 2 at the Fort Martin Power Station (Facility ID (ORISPL) 3943) · confidence: high
- Identifiers.0: {"value":"3943","system":"EIA plant code"} — Petition for an Alternative Mercury Monitor Certification Deadline for Units 1 and 2 at the Fort Martin Power Station (Facility ID (ORISPL) 3943) · confidence: high
- Identifiers.1: {"value":"Units 1 and 2","system":"EIA unit identifiers"} — Petition for an Alternative Mercury Monitor Certification Deadline for Units 1 and 2 at the Fort Martin Power Station (Facility ID (ORISPL) 3943) · confidence: medium
- Identifiers.1: {"value":"Units 1 and 2","system":"EIA unit identifiers"} — Source · confidence: medium
- Identifiers.3: {"value":"PJM","system":"ISO/RTO"} — Sheet1 · confidence: high
- Identifiers.4: {"value":"APS","system":"PJM resource/transmission area"} — Sheet1 · confidence: medium
- Identifiers.5: {"value":"FORT MARTIN 1","system":"PJM RPM market resource"} — Sheet1 · confidence: high
- Identifiers.6: {"value":"FORT MARTIN 2","system":"PJM RPM market resource"} — Sheet1 · confidence: medium
- Parties.2: {"relationship":"Parent company","name":"FirstEnergy Corp.","official_url":"https://www.firstenergycorp.com/"} — Mon Power and Potomac Edison Select Maidsville, West Virginia, Site for New Natural Gas Power Plant · confidence: medium
- Interconnection: Fort Martin Substation, a 500 kV switchyard in PJM's APS transmission zone — Fort Martin - Woodside Double Circuit 500 kV · confidence: medium
- Unit configuration: Two coal-fired conventional steam-coal units with pulverized, supercritical steam turbines. Unit 1: 552 MW operating/summer capacity; Unit 2: 546 MW operating/summer capacity. EIA-derived generator nameplate rating is 576 MW per unit. — Fort Martin Power Station · confidence: medium
- Construction scope: Two pulverized-coal generating units (2 x 550 MW; owner data identifies Unit 1 at 552 MW and Unit 2 at 546 MW). The 2006–2009 retrofit included EPC of a limestone forced-oxidation wet FGD system: two wet FGD absorbers (one per boiler), two limestone milling systems (one per boiler), a gypsum-dewatering system with three horizontal table filters (two operating and one spare), buildings, structural steel, and construction of B&W-supplied equipment. An electrostatic precipitator is also identified, without a stated count. — Source · confidence: high
- Construction scope: Two pulverized-coal generating units (2 x 550 MW; owner data identifies Unit 1 at 552 MW and Unit 2 at 546 MW). The 2006–2009 retrofit included EPC of a limestone forced-oxidation wet FGD system: two wet FGD absorbers (one per boiler), two limestone milling systems (one per boiler), a gypsum-dewatering system with three horizontal table filters (two operating and one spare), buildings, structural steel, and construction of B&W-supplied equipment. An electrostatic precipitator is also identified, without a stated count. — Source · confidence: high
- Product url: https://www.babcock.com/home/products/wet-scrubbers-fgd — Wet Scrubber Flue Gas Desulfurization (FGD) » Babcock & Wilcox · confidence: medium
- Product url: https://www.babcock.com/home/products/wet-scrubbers-fgd — Source · confidence: medium
- Kind: thermal — Source · confidence: high
- Manufacturer domain: babcock.com — Source · confidence: medium
- Equipment models: [{"manufacturer_domain":"gevernova.com","product_url":"https://www.gevernova.com/gas-power/products/steam-turbines","count":1,"unit_mw":552,"name":"GE Power steam turbine — Unit I"},{"manufacturer_domain":"gevernova.com","product_url":"https://www.gevernova.com/gas-power/products/steam-turbines","count":1,"unit_mw":546,"name":"GE Power steam turbine — Unit II"},{"manufacturer_domain":"gevernova.com","product_url":"https://www.gevernova.com/steam-power/services/boilers","count":1,"unit_mw":null,"name":"GE Power steam boiler — Unit I"},{"manufacturer_domain":"babcock.com","product_url":null,"count":1,"unit_mw":null,"name":"Babcock & Wilcox Enterprises steam boiler — Unit II"},{"manufacturer_domain":"babcock.com","product_url":"https://www.babcock.com/home/products/wet-scrubbers-fgd","count":2,"unit_mw":null,"name":"Babcock & Wilcox wet FGD absorbers"},{"manufacturer_domain":"babcock.com","product_url":"https://www.babcock.com/home/products/wet-scrubbers-fgd","count":2,"unit_mw":null,"name":"Babcock & Wilcox limestone milling systems"},{"manufacturer_domain":"babcock.com","product_url":"https://www.babcock.com/home/products/wet-scrubbers-fgd","count":3,"unit_mw":null,"name":"Babcock & Wilcox horizontal table filters"}] — Source · confidence: medium
- Product family: Babcock & Wilcox wet flue-gas-desulfurization system — limestone forced oxidation with gypsum byproduct — Source · confidence: medium
- Manufacturer name: Babcock & Wilcox — Source · confidence: medium
- Equipment models.4: {"manufacturer_domain":"babcock.com","product_url":"https://www.babcock.com/home/products/wet-scrubbers-fgd","count":2,"unit_mw":null,"name":"Babcock & Wilcox wet FGD absorbers"} — Source · confidence: medium
- Equipment models.5: {"manufacturer_domain":"babcock.com","product_url":"https://www.babcock.com/home/products/wet-scrubbers-fgd","count":2,"unit_mw":null,"name":"Babcock & Wilcox limestone milling systems"} — Source · confidence: medium
- Equipment models.6: {"manufacturer_domain":"babcock.com","product_url":"https://www.babcock.com/home/products/wet-scrubbers-fgd","count":3,"unit_mw":null,"name":"Babcock & Wilcox horizontal table filters"} — Source · confidence: medium
- Significance: Fort Martin is a regulated, scrubbed coal-fired station with two units totaling 1,098 MW. At full capacity, its units can produce more than 26 million kilowatt-hours per day; its scrubbers remove more than 98% of sulfur-dioxide emissions. — Source · confidence: high
- Description: Fort Martin Power Station is located in Maidsville, Monongalia County, West Virginia, along the Monongahela River. The station has two pulverized-coal units: Unit 1 entered service in 1967 at 552 MW and Unit 2 in 1968 at 546 MW. Monongahela Power Company owns and operates the facility, with FirstEnergy Corp. as its parent company. Ownership was consolidated in Monongahela Power through a substantially non-cash Allegheny system asset swap effective January 1, 2007, and FirstEnergy became the parent through its February 2011 merger with Allegheny Energy. Major wet flue-gas-desulfurization work was awarded in 2006 and placed into service in late 2009. — Source · confidence: medium
- Description: Fort Martin Power Station is located in Maidsville, Monongalia County, West Virginia, along the Monongahela River. The station has two pulverized-coal units: Unit 1 entered service in 1967 at 552 MW and Unit 2 in 1968 at 546 MW. Monongahela Power Company owns and operates the facility, with FirstEnergy Corp. as its parent company. Ownership was consolidated in Monongahela Power through a substantially non-cash Allegheny system asset swap effective January 1, 2007, and FirstEnergy became the parent through its February 2011 merger with Allegheny Energy. Major wet flue-gas-desulfurization work was awarded in 2006 and placed into service in late 2009. — Source · confidence: medium
- Description: Fort Martin Power Station is located in Maidsville, Monongalia County, West Virginia, along the Monongahela River. The station has two pulverized-coal units: Unit 1 entered service in 1967 at 552 MW and Unit 2 in 1968 at 546 MW. Monongahela Power Company owns and operates the facility, with FirstEnergy Corp. as its parent company. Ownership was consolidated in Monongahela Power through a substantially non-cash Allegheny system asset swap effective January 1, 2007, and FirstEnergy became the parent through its February 2011 merger with Allegheny Energy. Major wet flue-gas-desulfurization work was awarded in 2006 and placed into service in late 2009. — Source · confidence: medium
- Description: Fort Martin Power Station is located in Maidsville, Monongalia County, West Virginia, along the Monongahela River. The station has two pulverized-coal units: Unit 1 entered service in 1967 at 552 MW and Unit 2 in 1968 at 546 MW. Monongahela Power Company owns and operates the facility, with FirstEnergy Corp. as its parent company. Ownership was consolidated in Monongahela Power through a substantially non-cash Allegheny system asset swap effective January 1, 2007, and FirstEnergy became the parent through its February 2011 merger with Allegheny Energy. Major wet flue-gas-desulfurization work was awarded in 2006 and placed into service in late 2009. — FirstEnergy-Allegheny Energy Merger Closes Effective Today · confidence: medium
- Quality notes: ["The owner fact sheet reports 1,098 MW, while the PJM resource listing reports 552 MW for Unit 1 and 545.5 MW for Unit 2, or approximately 1,097.5 MW; this directory uses the owner-reported 1,098 MW figure.","The January 2007 ownership change was an intercompany asset swap rather than a conventional third-party sale. The filing describes it as substantially non-cash and recorded at net book value; no standalone cash sale consideration for Fort Martin is disclosed.","The disclosed 2007 financing was for environmental-control equipment, not the station's original 1960s construction. The proposed 1,200 MW natural-gas plant announced in 2026 is described as adjacent to Fort Martin, while the associated plan calls for continued operation of the coal station; it is not documented as a conversion or completed repowering of Fort Martin."] — Source · confidence: medium
- Quality notes: ["The owner fact sheet reports 1,098 MW, while the PJM resource listing reports 552 MW for Unit 1 and 545.5 MW for Unit 2, or approximately 1,097.5 MW; this directory uses the owner-reported 1,098 MW figure.","The January 2007 ownership change was an intercompany asset swap rather than a conventional third-party sale. The filing describes it as substantially non-cash and recorded at net book value; no standalone cash sale consideration for Fort Martin is disclosed.","The disclosed 2007 financing was for environmental-control equipment, not the station's original 1960s construction. The proposed 1,200 MW natural-gas plant announced in 2026 is described as adjacent to Fort Martin, while the associated plan calls for continued operation of the coal station; it is not documented as a conversion or completed repowering of Fort Martin."] — Source · confidence: medium
- Quality notes: ["The owner fact sheet reports 1,098 MW, while the PJM resource listing reports 552 MW for Unit 1 and 545.5 MW for Unit 2, or approximately 1,097.5 MW; this directory uses the owner-reported 1,098 MW figure.","The January 2007 ownership change was an intercompany asset swap rather than a conventional third-party sale. The filing describes it as substantially non-cash and recorded at net book value; no standalone cash sale consideration for Fort Martin is disclosed.","The disclosed 2007 financing was for environmental-control equipment, not the station's original 1960s construction. The proposed 1,200 MW natural-gas plant announced in 2026 is described as adjacent to Fort Martin, while the associated plan calls for continued operation of the coal station; it is not documented as a conversion or completed repowering of Fort Martin."] — Source · confidence: medium
- Quality notes: ["The owner fact sheet reports 1,098 MW, while the PJM resource listing reports 552 MW for Unit 1 and 545.5 MW for Unit 2, or approximately 1,097.5 MW; this directory uses the owner-reported 1,098 MW figure.","The January 2007 ownership change was an intercompany asset swap rather than a conventional third-party sale. The filing describes it as substantially non-cash and recorded at net book value; no standalone cash sale consideration for Fort Martin is disclosed.","The disclosed 2007 financing was for environmental-control equipment, not the station's original 1960s construction. The proposed 1,200 MW natural-gas plant announced in 2026 is described as adjacent to Fort Martin, while the associated plan calls for continued operation of the coal station; it is not documented as a conversion or completed repowering of Fort Martin."] — Mon Power and Potomac Edison Select Maidsville, West Virginia, Site for New Natural Gas Power Plant · confidence: medium
- Timeline: [{"event":"Unit 1 commercial operation","date":"1967","detail":"Fort Martin Unit 1 entered service with a reported generating capacity of 552 MW."},{"event":"Unit 2 commercial operation","date":"1968","detail":"Fort Martin Unit 2 entered service with a reported generating capacity of 546 MW."},{"event":"Environmental-control financing application","date":"2005-05-24","detail":"Monongahela Power and Potomac Edison jointly filed with the West Virginia PSC for financing authorization for Fort Martin emission-control facilities."},{"event":"PSC authorization and FGD project approval","date":"2006-04-07","detail":"The West Virginia PSC issued a financing order and granted a certificate of public convenience and necessity for the Fort Martin project. Babcock & Wilcox records the FGD contract award as April 2006."},{"event":"Ownership consolidation through asset swap","date":"2007-01-01","detail":"Allegheny Energy Supply Company and Monongahela Power completed an intercompany exchange of assets. After the substantially non-cash transaction, Monongahela Power owned 100% of Fort Martin; the transfer was recorded at net book value rather than as a conventional cash sale."},{"event":"Environmental-control bond issuance","date":"2007-04-11","detail":"MP Environmental Funding LLC issued $344.475 million of senior secured sinking-fund environmental-control bonds to finance Fort Martin flue-gas-desulfurization work."},{"event":"Unit 1 FGD operation","date":"2009-11","detail":"The Babcock & Wilcox wet FGD system for Unit 1 began operation in November 2009."},{"event":"Unit 2 FGD operation","date":"2009-12","detail":"The Babcock & Wilcox wet FGD system for Unit 2 began operation in December 2009; the owner reports that the station scrubbers were placed in service during the last quarter of 2009."},{"event":"Parent-company change","date":"2011-02-25","detail":"FirstEnergy Corp. completed its merger with Allegheny Energy, making FirstEnergy the parent company of the Allegheny utility and generation businesses, including Monongahela Power."},{"event":"Projected end of useful life","date":"2035","detail":"Public reporting of West Virginia regulatory filings identifies 2035 as the forecast retirement or end-of-useful-life year for Fort Martin; this is a projection, not a completed retirement."},{"event":"Adjacent natural-gas project proposed","date":"2026-02-13","detail":"Mon Power and Potomac Edison selected a 35-acre site next to Fort Martin for a proposed 1,200 MW natural-gas plant. The proposal contemplated site work as early as 2027 and commercial operation in late 2031, while the associated plan called for continued operation of Fort Martin."}] — Source · confidence: medium
- Timeline: [{"event":"Unit 1 commercial operation","date":"1967","detail":"Fort Martin Unit 1 entered service with a reported generating capacity of 552 MW."},{"event":"Unit 2 commercial operation","date":"1968","detail":"Fort Martin Unit 2 entered service with a reported generating capacity of 546 MW."},{"event":"Environmental-control financing application","date":"2005-05-24","detail":"Monongahela Power and Potomac Edison jointly filed with the West Virginia PSC for financing authorization for Fort Martin emission-control facilities."},{"event":"PSC authorization and FGD project approval","date":"2006-04-07","detail":"The West Virginia PSC issued a financing order and granted a certificate of public convenience and necessity for the Fort Martin project. Babcock & Wilcox records the FGD contract award as April 2006."},{"event":"Ownership consolidation through asset swap","date":"2007-01-01","detail":"Allegheny Energy Supply Company and Monongahela Power completed an intercompany exchange of assets. After the substantially non-cash transaction, Monongahela Power owned 100% of Fort Martin; the transfer was recorded at net book value rather than as a conventional cash sale."},{"event":"Environmental-control bond issuance","date":"2007-04-11","detail":"MP Environmental Funding LLC issued $344.475 million of senior secured sinking-fund environmental-control bonds to finance Fort Martin flue-gas-desulfurization work."},{"event":"Unit 1 FGD operation","date":"2009-11","detail":"The Babcock & Wilcox wet FGD system for Unit 1 began operation in November 2009."},{"event":"Unit 2 FGD operation","date":"2009-12","detail":"The Babcock & Wilcox wet FGD system for Unit 2 began operation in December 2009; the owner reports that the station scrubbers were placed in service during the last quarter of 2009."},{"event":"Parent-company change","date":"2011-02-25","detail":"FirstEnergy Corp. completed its merger with Allegheny Energy, making FirstEnergy the parent company of the Allegheny utility and generation businesses, including Monongahela Power."},{"event":"Projected end of useful life","date":"2035","detail":"Public reporting of West Virginia regulatory filings identifies 2035 as the forecast retirement or end-of-useful-life year for Fort Martin; this is a projection, not a completed retirement."},{"event":"Adjacent natural-gas project proposed","date":"2026-02-13","detail":"Mon Power and Potomac Edison selected a 35-acre site next to Fort Martin for a proposed 1,200 MW natural-gas plant. The proposal contemplated site work as early as 2027 and commercial operation in late 2031, while the associated plan called for continued operation of Fort Martin."}] — Source · confidence: medium
- Timeline: [{"event":"Unit 1 commercial operation","date":"1967","detail":"Fort Martin Unit 1 entered service with a reported generating capacity of 552 MW."},{"event":"Unit 2 commercial operation","date":"1968","detail":"Fort Martin Unit 2 entered service with a reported generating capacity of 546 MW."},{"event":"Environmental-control financing application","date":"2005-05-24","detail":"Monongahela Power and Potomac Edison jointly filed with the West Virginia PSC for financing authorization for Fort Martin emission-control facilities."},{"event":"PSC authorization and FGD project approval","date":"2006-04-07","detail":"The West Virginia PSC issued a financing order and granted a certificate of public convenience and necessity for the Fort Martin project. Babcock & Wilcox records the FGD contract award as April 2006."},{"event":"Ownership consolidation through asset swap","date":"2007-01-01","detail":"Allegheny Energy Supply Company and Monongahela Power completed an intercompany exchange of assets. After the substantially non-cash transaction, Monongahela Power owned 100% of Fort Martin; the transfer was recorded at net book value rather than as a conventional cash sale."},{"event":"Environmental-control bond issuance","date":"2007-04-11","detail":"MP Environmental Funding LLC issued $344.475 million of senior secured sinking-fund environmental-control bonds to finance Fort Martin flue-gas-desulfurization work."},{"event":"Unit 1 FGD operation","date":"2009-11","detail":"The Babcock & Wilcox wet FGD system for Unit 1 began operation in November 2009."},{"event":"Unit 2 FGD operation","date":"2009-12","detail":"The Babcock & Wilcox wet FGD system for Unit 2 began operation in December 2009; the owner reports that the station scrubbers were placed in service during the last quarter of 2009."},{"event":"Parent-company change","date":"2011-02-25","detail":"FirstEnergy Corp. completed its merger with Allegheny Energy, making FirstEnergy the parent company of the Allegheny utility and generation businesses, including Monongahela Power."},{"event":"Projected end of useful life","date":"2035","detail":"Public reporting of West Virginia regulatory filings identifies 2035 as the forecast retirement or end-of-useful-life year for Fort Martin; this is a projection, not a completed retirement."},{"event":"Adjacent natural-gas project proposed","date":"2026-02-13","detail":"Mon Power and Potomac Edison selected a 35-acre site next to Fort Martin for a proposed 1,200 MW natural-gas plant. The proposal contemplated site work as early as 2027 and commercial operation in late 2031, while the associated plan called for continued operation of Fort Martin."}] — B&W Clean Power Production Case Studies » Babcock & Wilcox · confidence: medium
- Timeline: [{"event":"Unit 1 commercial operation","date":"1967","detail":"Fort Martin Unit 1 entered service with a reported generating capacity of 552 MW."},{"event":"Unit 2 commercial operation","date":"1968","detail":"Fort Martin Unit 2 entered service with a reported generating capacity of 546 MW."},{"event":"Environmental-control financing application","date":"2005-05-24","detail":"Monongahela Power and Potomac Edison jointly filed with the West Virginia PSC for financing authorization for Fort Martin emission-control facilities."},{"event":"PSC authorization and FGD project approval","date":"2006-04-07","detail":"The West Virginia PSC issued a financing order and granted a certificate of public convenience and necessity for the Fort Martin project. Babcock & Wilcox records the FGD contract award as April 2006."},{"event":"Ownership consolidation through asset swap","date":"2007-01-01","detail":"Allegheny Energy Supply Company and Monongahela Power completed an intercompany exchange of assets. After the substantially non-cash transaction, Monongahela Power owned 100% of Fort Martin; the transfer was recorded at net book value rather than as a conventional cash sale."},{"event":"Environmental-control bond issuance","date":"2007-04-11","detail":"MP Environmental Funding LLC issued $344.475 million of senior secured sinking-fund environmental-control bonds to finance Fort Martin flue-gas-desulfurization work."},{"event":"Unit 1 FGD operation","date":"2009-11","detail":"The Babcock & Wilcox wet FGD system for Unit 1 began operation in November 2009."},{"event":"Unit 2 FGD operation","date":"2009-12","detail":"The Babcock & Wilcox wet FGD system for Unit 2 began operation in December 2009; the owner reports that the station scrubbers were placed in service during the last quarter of 2009."},{"event":"Parent-company change","date":"2011-02-25","detail":"FirstEnergy Corp. completed its merger with Allegheny Energy, making FirstEnergy the parent company of the Allegheny utility and generation businesses, including Monongahela Power."},{"event":"Projected end of useful life","date":"2035","detail":"Public reporting of West Virginia regulatory filings identifies 2035 as the forecast retirement or end-of-useful-life year for Fort Martin; this is a projection, not a completed retirement."},{"event":"Adjacent natural-gas project proposed","date":"2026-02-13","detail":"Mon Power and Potomac Edison selected a 35-acre site next to Fort Martin for a proposed 1,200 MW natural-gas plant. The proposal contemplated site work as early as 2027 and commercial operation in late 2031, while the associated plan called for continued operation of Fort Martin."}] — Source · confidence: medium
- Timeline: [{"event":"Unit 1 commercial operation","date":"1967","detail":"Fort Martin Unit 1 entered service with a reported generating capacity of 552 MW."},{"event":"Unit 2 commercial operation","date":"1968","detail":"Fort Martin Unit 2 entered service with a reported generating capacity of 546 MW."},{"event":"Environmental-control financing application","date":"2005-05-24","detail":"Monongahela Power and Potomac Edison jointly filed with the West Virginia PSC for financing authorization for Fort Martin emission-control facilities."},{"event":"PSC authorization and FGD project approval","date":"2006-04-07","detail":"The West Virginia PSC issued a financing order and granted a certificate of public convenience and necessity for the Fort Martin project. Babcock & Wilcox records the FGD contract award as April 2006."},{"event":"Ownership consolidation through asset swap","date":"2007-01-01","detail":"Allegheny Energy Supply Company and Monongahela Power completed an intercompany exchange of assets. After the substantially non-cash transaction, Monongahela Power owned 100% of Fort Martin; the transfer was recorded at net book value rather than as a conventional cash sale."},{"event":"Environmental-control bond issuance","date":"2007-04-11","detail":"MP Environmental Funding LLC issued $344.475 million of senior secured sinking-fund environmental-control bonds to finance Fort Martin flue-gas-desulfurization work."},{"event":"Unit 1 FGD operation","date":"2009-11","detail":"The Babcock & Wilcox wet FGD system for Unit 1 began operation in November 2009."},{"event":"Unit 2 FGD operation","date":"2009-12","detail":"The Babcock & Wilcox wet FGD system for Unit 2 began operation in December 2009; the owner reports that the station scrubbers were placed in service during the last quarter of 2009."},{"event":"Parent-company change","date":"2011-02-25","detail":"FirstEnergy Corp. completed its merger with Allegheny Energy, making FirstEnergy the parent company of the Allegheny utility and generation businesses, including Monongahela Power."},{"event":"Projected end of useful life","date":"2035","detail":"Public reporting of West Virginia regulatory filings identifies 2035 as the forecast retirement or end-of-useful-life year for Fort Martin; this is a projection, not a completed retirement."},{"event":"Adjacent natural-gas project proposed","date":"2026-02-13","detail":"Mon Power and Potomac Edison selected a 35-acre site next to Fort Martin for a proposed 1,200 MW natural-gas plant. The proposal contemplated site work as early as 2027 and commercial operation in late 2031, while the associated plan called for continued operation of Fort Martin."}] — FirstEnergy-Allegheny Energy Merger Closes Effective Today · confidence: medium
- Timeline: [{"event":"Unit 1 commercial operation","date":"1967","detail":"Fort Martin Unit 1 entered service with a reported generating capacity of 552 MW."},{"event":"Unit 2 commercial operation","date":"1968","detail":"Fort Martin Unit 2 entered service with a reported generating capacity of 546 MW."},{"event":"Environmental-control financing application","date":"2005-05-24","detail":"Monongahela Power and Potomac Edison jointly filed with the West Virginia PSC for financing authorization for Fort Martin emission-control facilities."},{"event":"PSC authorization and FGD project approval","date":"2006-04-07","detail":"The West Virginia PSC issued a financing order and granted a certificate of public convenience and necessity for the Fort Martin project. Babcock & Wilcox records the FGD contract award as April 2006."},{"event":"Ownership consolidation through asset swap","date":"2007-01-01","detail":"Allegheny Energy Supply Company and Monongahela Power completed an intercompany exchange of assets. After the substantially non-cash transaction, Monongahela Power owned 100% of Fort Martin; the transfer was recorded at net book value rather than as a conventional cash sale."},{"event":"Environmental-control bond issuance","date":"2007-04-11","detail":"MP Environmental Funding LLC issued $344.475 million of senior secured sinking-fund environmental-control bonds to finance Fort Martin flue-gas-desulfurization work."},{"event":"Unit 1 FGD operation","date":"2009-11","detail":"The Babcock & Wilcox wet FGD system for Unit 1 began operation in November 2009."},{"event":"Unit 2 FGD operation","date":"2009-12","detail":"The Babcock & Wilcox wet FGD system for Unit 2 began operation in December 2009; the owner reports that the station scrubbers were placed in service during the last quarter of 2009."},{"event":"Parent-company change","date":"2011-02-25","detail":"FirstEnergy Corp. completed its merger with Allegheny Energy, making FirstEnergy the parent company of the Allegheny utility and generation businesses, including Monongahela Power."},{"event":"Projected end of useful life","date":"2035","detail":"Public reporting of West Virginia regulatory filings identifies 2035 as the forecast retirement or end-of-useful-life year for Fort Martin; this is a projection, not a completed retirement."},{"event":"Adjacent natural-gas project proposed","date":"2026-02-13","detail":"Mon Power and Potomac Edison selected a 35-acre site next to Fort Martin for a proposed 1,200 MW natural-gas plant. The proposal contemplated site work as early as 2027 and commercial operation in late 2031, while the associated plan called for continued operation of Fort Martin."}] — FirstEnergy increases 5-year spending plan 44%, to $26B,... · confidence: medium
- Timeline: [{"event":"Unit 1 commercial operation","date":"1967","detail":"Fort Martin Unit 1 entered service with a reported generating capacity of 552 MW."},{"event":"Unit 2 commercial operation","date":"1968","detail":"Fort Martin Unit 2 entered service with a reported generating capacity of 546 MW."},{"event":"Environmental-control financing application","date":"2005-05-24","detail":"Monongahela Power and Potomac Edison jointly filed with the West Virginia PSC for financing authorization for Fort Martin emission-control facilities."},{"event":"PSC authorization and FGD project approval","date":"2006-04-07","detail":"The West Virginia PSC issued a financing order and granted a certificate of public convenience and necessity for the Fort Martin project. Babcock & Wilcox records the FGD contract award as April 2006."},{"event":"Ownership consolidation through asset swap","date":"2007-01-01","detail":"Allegheny Energy Supply Company and Monongahela Power completed an intercompany exchange of assets. After the substantially non-cash transaction, Monongahela Power owned 100% of Fort Martin; the transfer was recorded at net book value rather than as a conventional cash sale."},{"event":"Environmental-control bond issuance","date":"2007-04-11","detail":"MP Environmental Funding LLC issued $344.475 million of senior secured sinking-fund environmental-control bonds to finance Fort Martin flue-gas-desulfurization work."},{"event":"Unit 1 FGD operation","date":"2009-11","detail":"The Babcock & Wilcox wet FGD system for Unit 1 began operation in November 2009."},{"event":"Unit 2 FGD operation","date":"2009-12","detail":"The Babcock & Wilcox wet FGD system for Unit 2 began operation in December 2009; the owner reports that the station scrubbers were placed in service during the last quarter of 2009."},{"event":"Parent-company change","date":"2011-02-25","detail":"FirstEnergy Corp. completed its merger with Allegheny Energy, making FirstEnergy the parent company of the Allegheny utility and generation businesses, including Monongahela Power."},{"event":"Projected end of useful life","date":"2035","detail":"Public reporting of West Virginia regulatory filings identifies 2035 as the forecast retirement or end-of-useful-life year for Fort Martin; this is a projection, not a completed retirement."},{"event":"Adjacent natural-gas project proposed","date":"2026-02-13","detail":"Mon Power and Potomac Edison selected a 35-acre site next to Fort Martin for a proposed 1,200 MW natural-gas plant. The proposal contemplated site work as early as 2027 and commercial operation in late 2031, while the associated plan called for continued operation of Fort Martin."}] — Mon Power and Potomac Edison Select Maidsville, West Virginia, Site for New Natural Gas Power Plant · confidence: medium
- Quality notes.0: The owner fact sheet reports 1,098 MW, while the PJM resource listing reports 552 MW for Unit 1 and 545.5 MW for Unit 2, or approximately 1,097.5 MW; this directory uses the owner-reported 1,098 MW figure. — Source · confidence: high
- Quality notes.1: The January 2007 ownership change was an intercompany asset swap rather than a conventional third-party sale. The filing describes it as substantially non-cash and recorded at net book value; no standalone cash sale consideration for Fort Martin is disclosed. — Source · confidence: high
- Quality notes.2: The disclosed 2007 financing was for environmental-control equipment, not the station's original 1960s construction. The proposed 1,200 MW natural-gas plant announced in 2026 is described as adjacent to Fort Martin, while the associated plan calls for continued operation of the coal station; it is not documented as a conversion or completed repowering of Fort Martin. — Mon Power and Potomac Edison Select Maidsville, West Virginia, Site for New Natural Gas Power Plant · confidence: medium
- Quality notes.2: The disclosed 2007 financing was for environmental-control equipment, not the station's original 1960s construction. The proposed 1,200 MW natural-gas plant announced in 2026 is described as adjacent to Fort Martin, while the associated plan calls for continued operation of the coal station; it is not documented as a conversion or completed repowering of Fort Martin. — B&W Clean Power Production Case Studies » Babcock & Wilcox · confidence: medium
- Timeline.0: {"event":"Unit 1 commercial operation","date":"1967","detail":"Fort Martin Unit 1 entered service with a reported generating capacity of 552 MW."} — Source · confidence: high
- Timeline.1: {"event":"Unit 2 commercial operation","date":"1968","detail":"Fort Martin Unit 2 entered service with a reported generating capacity of 546 MW."} — Source · confidence: high
- Timeline.2: {"event":"Environmental-control financing application","date":"2005-05-24","detail":"Monongahela Power and Potomac Edison jointly filed with the West Virginia PSC for financing authorization for Fort Martin emission-control facilities."} — Source · confidence: high
- Timeline.3: {"event":"PSC authorization and FGD project approval","date":"2006-04-07","detail":"The West Virginia PSC issued a financing order and granted a certificate of public convenience and necessity for the Fort Martin project. Babcock & Wilcox records the FGD contract award as April 2006."} — Source · confidence: high
- Timeline.3: {"event":"PSC authorization and FGD project approval","date":"2006-04-07","detail":"The West Virginia PSC issued a financing order and granted a certificate of public convenience and necessity for the Fort Martin project. Babcock & Wilcox records the FGD contract award as April 2006."} — B&W Clean Power Production Case Studies » Babcock & Wilcox · confidence: high
- Timeline.4: {"event":"Ownership consolidation through asset swap","date":"2007-01-01","detail":"Allegheny Energy Supply Company and Monongahela Power completed an intercompany exchange of assets. After the substantially non-cash transaction, Monongahela Power owned 100% of Fort Martin; the transfer was recorded at net book value rather than as a conventional cash sale."} — Source · confidence: high

## Timeline

- 1967 — Unit 1 commercial operation
  Fort Martin Unit 1 entered service with a reported generating capacity of 552 MW.
  Source: Source (https://www.firstenergycorp.com/content/dam/corporate/generationmap/files/FE-Ft%20Martin%20Fact%20Sheet.pdf)
- 1968 — Unit 2 commercial operation
  Fort Martin Unit 2 entered service with a reported generating capacity of 546 MW.
  Source: Source (https://www.firstenergycorp.com/content/dam/corporate/generationmap/files/FE-Ft%20Martin%20Fact%20Sheet.pdf)
- 2007-04-11 — Environmental-control bond issuance
  MP Environmental Funding LLC issued $344.475 million of senior secured sinking-fund environmental-control bonds to finance Fort Martin flue-gas-desulfurization work.
  Source: Source (https://www.sec.gov/Archives/edgar/data/1384732/000095012007000242/mp-prospectus.htm)
- 2009-11 — Unit 1 FGD operation
  The Babcock & Wilcox wet FGD system for Unit 1 began operation in November 2009.
  Source: B&W Clean Power Production Case Studies » Babcock & Wilcox (https://www.babcock.com/home/about/resources/success-stories/fort-martin)
- 2009-12 — Unit 2 FGD operation
  The Babcock & Wilcox wet FGD system for Unit 2 began operation in December 2009; the owner reports that the station scrubbers were placed in service during the last quarter of 2009.
  Source: Source (https://www.firstenergycorp.com/content/dam/corporate/generationmap/files/FE-Ft%20Martin%20Fact%20Sheet.pdf)
- 2011-02-25 — Parent-company change
  FirstEnergy Corp. completed its merger with Allegheny Energy, making FirstEnergy the parent company of the Allegheny utility and generation businesses, including Monongahela Power.
  Source: FirstEnergy-Allegheny Energy Merger Closes Effective Today (https://www.prnewswire.com/news-releases/firstenergy-allegheny-energy-merger-closes-effective-today-116932118.html)
- 2026-02-13 — Adjacent natural-gas project proposed
  Mon Power and Potomac Edison selected a 35-acre site next to Fort Martin for a proposed 1,200 MW natural-gas plant. The proposal contemplated site work as early as 2027 and commercial operation in late 2031, while the associated plan called for continued operation of Fort Martin.
  Source: Mon Power and Potomac Edison Select Maidsville, West Virginia, Site for New Natural Gas Power Plant (https://www.firstenergycorp.com/newsroom/news_articles/mon-power-potomac-edison-select-site-for-natural-gas-power-plant.html)

## Sources

- [Generation System](https://www.firstenergycorp.com/about/generation_system.html) — firstenergycorp.com · tier other
- [Mon Power and Potomac Edison Select Maidsville, West Virginia, Site for New Natural Gas Power Plant](https://investors.firstenergycorp.com/investor-materials/news-releases/news-details/2026/Mon-Power-and-Potomac-Edison-Select-Maidsville-West-Virginia-Site-for-New-Natural-Gas-Power-Plant/default.aspx) — investors.firstenergycorp.com · tier other
- [Petition for an Alternative Mercury Monitor Certification Deadline for Units 1 and 2 at the Fort Martin Power Station (Facility ID (ORISPL) 3943)](https://www.epa.gov/sites/default/files/2015-05/documents/fort_martin_power_station.pdf) — epa.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
- [Microsoft Word - 2025 MATS Repeal Comments Final for signature (002)](https://downloads.regulations.gov/EPA-HQ-OAR-2018-0794-7266/attachment_1.pdf) — downloads.regulations.gov · tier regulatory
- [Source](https://www.firstenergycorp.com/content/dam/corporate/generationmap/files/FE-Ft%20Martin%20Fact%20Sheet.pdf) — firstenergycorp.com · tier other
- [Fort Martin - Woodside Double Circuit 500 kV](https://www.pjm.com/-/media/DotCom/planning/rtep-dev/expan-plan-process/ferc-order-1000/rtep-proposal-windows/2025-rtep-window-1-redacted-proposals/2025-w1-896.pdf) — pjm.com · tier other
- [Source](https://www.babcock.com/assets/Case-Studies/Fort-Martin-Units-1-And-2-Wet-FGD-Systems-Babcock-Wilcox.pdf) — babcock.com · tier other
- [Source](https://firstenergycorp.com/content/dam/corporate/generationmap/files/FE-Ft%20Martin%20Fact%20Sheet.pdf) — firstenergycorp.com · tier other
- [Wet Scrubber Flue Gas Desulfurization (FGD) » Babcock & Wilcox](https://www.babcock.com/home/products/wet-scrubbers-fgd/searchform?Search=&tab=case-studies&start=20) — babcock.com · tier other
- [Source](https://www.sec.gov/Archives/edgar/data/3673/000095015207004083/l26063ae10vq.htm) — sec.gov · tier regulatory
- [FirstEnergy-Allegheny Energy Merger Closes Effective Today](https://www.prnewswire.com/news-releases/firstenergy-allegheny-energy-merger-closes-effective-today-116932118.html) — prnewswire.com · tier other
- [Source](https://pjm.com/-/media/DotCom/markets-ops/rpm/rpm-auction-info/2025-2026/2025-2026-rpm-existing-resource-list-post.xlsx) — pjm.com · tier other
- [Mon Power and Potomac Edison Select Maidsville, West Virginia, Site for New Natural Gas Power Plant](https://www.firstenergycorp.com/newsroom/news_articles/mon-power-potomac-edison-select-site-for-natural-gas-power-plant.html) — firstenergycorp.com · tier other
- [Source](https://www.sec.gov/Archives/edgar/data/1384732/000095012007000242/mp-prospectus.htm) — sec.gov · tier regulatory
- [B&W Clean Power Production Case Studies » Babcock & Wilcox](https://www.babcock.com/home/about/resources/success-stories/fort-martin) — babcock.com · tier other
- [FirstEnergy increases 5-year spending plan 44%, to $26B, ...](https://www.esgdive.com/news/firstenergy-capex-investment-plan-drops-2030-carbon-goal/707369/) — esgdive.com · tier other
- [Source](https://www.sec.gov/Archives/edgar/data/67646/000095015206006701/l21801ae10vq.htm) — sec.gov · tier regulatory
- [Constructability & Cost Analysis Report](https://www.pjm.com/-/media/DotCom/committees-groups/committees/teac/2026/20260106/20260106-2025-rtep-window-1-constructability-and-cost-analysis-report.pdf) — pjm.com · tier other
- [FirstEnergy won't exit coal by 2030 - Power Engineering](https://www.power-eng.com/coal/firstenergy-wont-exit-coal-by-2030/) — power-eng.com · tier other
- [Fort Martin power station - Global Energy Monitor](https://www.gem.wiki/Fort_Martin_power_station) — gem.wiki · tier other
- [monongahela power company and subsidiaries audited ...](https://s27.q4cdn.com/655807321/files/doc_downloads/2025/03/MP-12-31-2024-FINAL.pdf) — s27.q4cdn.com · tier other

## Data quality

- The owner fact sheet reports 1,098 MW, while the PJM resource listing reports 552 MW for Unit 1 and 545.5 MW for Unit 2, or approximately 1,097.5 MW; this directory uses the owner-reported 1,098 MW figure. The filing describes it as substantially non-cash and recorded at net book value; no standalone cash sale consideration for Fort Martin is disclosed. The disclosed 2007 financing was for environmental-control equipment, not the station's original 1960s construction. The proposed 1,200 MW natural-gas plant announced in 2026 is described as adjacent to Fort Martin, while the associated plan calls for continued operation of the coal station; it is not documented as a conversion or completed repowering of Fort Martin.

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