# Mt Storm

PJM Petroleum Liquids, Conventional Steam Coal · https://askthegrid.com/assets/facilities/mt-storm

Mt Storm is a coal-fired power facility with 1,680.9 MW of EIA-reported nameplate capacity in Grant County, West Virginia, registered as EIA Plant ID 3954. Virginia Electric & Power Co is the registered plant entity or operator. Mt. Storm is a historic mine-mouth generating station and was described as the largest coal-fired power station owned and operated by Virginia Power. Commercial operation began in 1966. The facility interconnects at MTSTORM4 at 500 kV.

## Key facts

- Technology: Petroleum Liquids, Conventional Steam Coal
- Power capacity: 1680.9 MW
- Commercial operation: 1966
- Operating status: operating

## Grid and market context

- ISO/RTO: PJM
- Balancing authority: PJM
- Substation: MTSTORM4
- Point of interconnection: MTSTORM4
- Transmission owner: Dominion Energy / Virginia Electric and Power Company
- Interconnection voltage: 500 kV

## Source-backed facts

- Official project url: https://www.dominionenergy.com/en/About/Making-Energy/Power-Stations — Power Stations | Dominion Energy · confidence: high
- Significance: Mt. Storm is a historic mine-mouth generating station and was described as the largest coal-fired power station owned and operated by Virginia Power. — Virginia Electric and Power Company, Mt. Storm, W. Va. - West Virginia History OnView | WVU Libraries · confidence: medium
- Quality notes: ["Capacity varies by reporting basis: Dominion lists 1,630 MW net, the 2025 Dominion annual report lists 1,614 MW for Mt. Storm, and the EIA-linked plant record reports 1,680.9 MW.","The Clearway acquisition involving a 264 MW Mt. Storm asset concerns a separate wind project, not this coal-and-oil station.","No separate sale or acquisition of the fossil Mt. Storm station is identified in the available ownership record. The 2022 sale of Dominion's West Virginia gas-distribution business expressly stated that Dominion would continue to own and operate Mt. Storm.","The 2026 Mt. Storm Combined Cycle proposal is a new gas project; the existing coal station was stated to remain operational, so it is not documented as a retirement or repowering of the fossil plant."] — Power Stations | Dominion Energy · confidence: medium
- Quality notes: ["Capacity varies by reporting basis: Dominion lists 1,630 MW net, the 2025 Dominion annual report lists 1,614 MW for Mt. Storm, and the EIA-linked plant record reports 1,680.9 MW.","The Clearway acquisition involving a 264 MW Mt. Storm asset concerns a separate wind project, not this coal-and-oil station.","No separate sale or acquisition of the fossil Mt. Storm station is identified in the available ownership record. The 2022 sale of Dominion's West Virginia gas-distribution business expressly stated that Dominion would continue to own and operate Mt. Storm.","The 2026 Mt. Storm Combined Cycle proposal is a new gas project; the existing coal station was stated to remain operational, so it is not documented as a retirement or repowering of the fossil plant."] — Dominion Energy 2025 Annual Report · confidence: medium
- Quality notes: ["Capacity varies by reporting basis: Dominion lists 1,630 MW net, the 2025 Dominion annual report lists 1,614 MW for Mt. Storm, and the EIA-linked plant record reports 1,680.9 MW.","The Clearway acquisition involving a 264 MW Mt. Storm asset concerns a separate wind project, not this coal-and-oil station.","No separate sale or acquisition of the fossil Mt. Storm station is identified in the available ownership record. The 2022 sale of Dominion's West Virginia gas-distribution business expressly stated that Dominion would continue to own and operate Mt. Storm.","The 2026 Mt. Storm Combined Cycle proposal is a new gas project; the existing coal station was stated to remain operational, so it is not documented as a retirement or repowering of the fossil plant."] — Dominion Closes Sale of West Virginia LDC, Landing State a New Resident Firm · confidence: medium
- Quality notes: ["Capacity varies by reporting basis: Dominion lists 1,630 MW net, the 2025 Dominion annual report lists 1,614 MW for Mt. Storm, and the EIA-linked plant record reports 1,680.9 MW.","The Clearway acquisition involving a 264 MW Mt. Storm asset concerns a separate wind project, not this coal-and-oil station.","No separate sale or acquisition of the fossil Mt. Storm station is identified in the available ownership record. The 2022 sale of Dominion's West Virginia gas-distribution business expressly stated that Dominion would continue to own and operate Mt. Storm.","The 2026 Mt. Storm Combined Cycle proposal is a new gas project; the existing coal station was stated to remain operational, so it is not documented as a retirement or repowering of the fossil plant."] — Governor Morrisey Announces 2.6 GW Natural Gas Power Plant in Grant County, Existing Coal Station Remains Operational | WV Office of the Governor Patrick Morrisey · confidence: medium
- Commercial parties.4: {"relationship":"Coal-handling retrofit contractor","name":"Power Piping Co. of Pittsburgh","detail":"Awarded the contract for the coal-bunker modifications, including work on Units 1, 2, and 3.","official_url":null} — Dominion Solves Mt. Storm’s Fuel-Handling Problems with Improved Coal Silo Design · confidence: high
- Quality notes.0: Capacity varies by reporting basis: Dominion lists 1,630 MW net, the 2025 Dominion annual report lists 1,614 MW for Mt. Storm, and the EIA-linked plant record reports 1,680.9 MW. — Virginia Electric and Power Company, Mt. Storm, W. Va. - West Virginia History OnView | WVU Libraries · confidence: medium
- Quality notes.2: No separate sale or acquisition of the fossil Mt. Storm station is identified in the available ownership record. The 2022 sale of Dominion's West Virginia gas-distribution business expressly stated that Dominion would continue to own and operate Mt. Storm. — Dominion Closes Sale of West Virginia LDC, Landing State a New Resident Firm · confidence: medium
- Quality notes.3: The 2026 Mt. Storm Combined Cycle proposal is a new gas project; the existing coal station was stated to remain operational, so it is not documented as a retirement or repowering of the fossil plant. — Governor Morrisey Announces 2.6 GW Natural Gas Power Plant in Grant County, Existing Coal Station Remains Operational | WV Office of the Governor Patrick Morrisey · confidence: high
- Timeline.2: {"event":"Unit 2 commercial operation","date":"1966","detail":"Unit 2 came online in 1966."} — Managing the Plant: Dominion Mt. Storm · confidence: high
- Timeline.3: {"event":"Unit 3 commercial operation","date":"1973","detail":"Unit 3 went into service in 1973, completing the original three-unit coal configuration."} — Managing the Plant: Dominion Mt. Storm · confidence: high
- Timeline.4: {"event":"Scrubber testing","date":"1994","detail":"Virginia Power began testing a scrubber system to control sulfur-dioxide emissions at the Mount Storm station."} — TICKER – The Virginian-Pilot · confidence: medium
- Timeline.5: {"event":"Pollution-control configuration documented","date":"2005","detail":"By April 2005, all three units were documented as equipped with scrubbers and selective catalytic reduction systems for sulfur-dioxide and nitrogen-oxide control."} — Managing the Plant: Dominion Mt. Storm - Power Engineering · confidence: high
- Timeline.7: {"event":"Coal-handling retrofit—Unit 1","date":"2006","detail":"Power Piping completed the Unit 1 coal-handling modifications in early 2006."} — Dominion Solves Mt. Storm’s Fuel-Handling Problems with Improved Coal Silo Design · confidence: high
- Timeline.8: {"event":"Coal-handling retrofit—Unit 3","date":"2007","detail":"Unit 3 was retrofitted by the middle of 2007."} — Dominion Solves Mt. Storm’s Fuel-Handling Problems with Improved Coal Silo Design · confidence: high
- Timeline.9: {"event":"Pyrite Pond environmental retrofit","date":"2016","detail":"Dominion planned and carried out a CCR-compliance retrofit of the Pyrite Pond during the 2016 construction season."} — Mt Storm Retrofit Plan · confidence: high
- Timeline.11: {"event":"New gas station proposed alongside existing coal station","date":"2026-07-28","detail":"Dominion proposed the 2.6 GW Mt. Storm Combined Cycle Station, while the existing approximately 1.6 GW coal-fired Mt. Storm Power Station was stated to remain operational."} — Governor Morrisey Announces 2.6 GW Natural Gas Power Plant in Grant County, Existing Coal Station Remains Operational | WV Office of the Governor Patrick Morrisey · confidence: high
- Status detail: The existing 1.6-GW Mt. Storm coal-fired station is operating and Dominion plans to continue operating it. Dominion stated in February 2026 that the coal units were not being converted to natural gas and, in July 2026, said the proposed combined-cycle project would not affect or replace the existing station. No firm closure or unit-retirement date was identified. — Dominion says Mount Storm will continue burning coal sourced from elsewhere - WV MetroNews · confidence: high
- Grid role: Baseload generation serving Dominion Energy Virginia customers and the broader PJM region. — October 15, 2025 BY ELECTRONIC DELIVERY Bernard Logan, Clerk Document Control Center State Corporation Commission 1300 E. Main Street, Tyler · confidence: high
- Operating status: operating — Dominion says Mount Storm will continue burning coal sourced from elsewhere - WV MetroNews · confidence: high

## Timeline

- 1966 — Unit 2 commercial operation
  Unit 2 came online in 1966.
  Source: Managing the Plant: Dominion Mt. Storm (https://www.power-eng.com/operations-maintenance/managing-the-plant-dominion-mt-storm/)
- 1973 — Unit 3 commercial operation
  Unit 3 went into service in 1973, completing the original three-unit coal configuration.
  Source: Managing the Plant: Dominion Mt. Storm (https://www.power-eng.com/operations-maintenance/managing-the-plant-dominion-mt-storm/)
- 2005 — Coal-handling retrofit—Unit 2
  Mt. Storm began coal-bunker and fuel-handling modifications with work on Unit 2.
  Source: Dominion Solves Mt. Storm’s Fuel-Handling Problems with Improved Coal Silo Design (https://www.powermag.com/dominion-solves-mt-storms-fuel-handling-problems-with-improved-coal-silo-design/)
- 2006 — Coal-handling retrofit—Unit 1
  Power Piping completed the Unit 1 coal-handling modifications in early 2006.
  Source: Dominion Solves Mt. Storm’s Fuel-Handling Problems with Improved Coal Silo Design (https://www.powermag.com/dominion-solves-mt-storms-fuel-handling-problems-with-improved-coal-silo-design/)
- 2007 — Coal-handling retrofit—Unit 3
  Unit 3 was retrofitted by the middle of 2007.
  Source: Dominion Solves Mt. Storm’s Fuel-Handling Problems with Improved Coal Silo Design (https://www.powermag.com/dominion-solves-mt-storms-fuel-handling-problems-with-improved-coal-silo-design/)
- 2016 — Pyrite Pond environmental retrofit
  Dominion planned and carried out a CCR-compliance retrofit of the Pyrite Pond during the 2016 construction season.
  Source: Mt Storm Retrofit Plan (https://www.dominionenergy.com/-/media/content/about/ccr-rule-compliance-data-and-information/pdfs/mt-storm/low-volume-waste-ponds/retrofit/mts-lvw-retrofit-plan-and-notice-of-intent.pdf)
- 2026-07-28 — New gas station proposed alongside existing coal station
  Dominion proposed the 2.6 GW Mt. Storm Combined Cycle Station, while the existing approximately 1.6 GW coal-fired Mt. Storm Power Station was stated to remain operational.
  Source: Governor Morrisey Announces 2.6 GW Natural Gas Power Plant in Grant County, Existing Coal Station Remains Operational | WV Office of the Governor Patrick Morrisey (https://governor.wv.gov/article/governor-morrisey-announces-26-gw-natural-gas-power-plant-grant-county-existing-coal)

## Sources

- [Power Stations | Dominion Energy](https://www.dominionenergy.com/en/About/Making-Energy/Power-Stations) — dominionenergy.com · tier other
- [Dominion Energy rebuilding high voltage transmission line](https://www.wmra.org/2022-08-03/dominion-energy-rebuilding-high-voltage-transmission-line) — wmra.org · tier other
- [Managing the Plant: Dominion Mt. Storm - Power Engineering](https://www.power-eng.com/operations-maintenance/managing-the-plant-dominion-mt-storm/) — power-eng.com · tier other
- [Virginia Electric and Power Company, Mt. Storm, W. Va. - West Virginia History OnView | WVU Libraries](https://www.wvhistoryonview.org/catalog/053666) — wvhistoryonview.org · tier other
- [Mt Storm Retrofit Plan](https://www.dominionenergy.com/-/media/content/about/ccr-rule-compliance-data-and-information/pdfs/mt-storm/low-volume-waste-ponds/retrofit/mts-lvw-retrofit-plan-and-notice-of-intent.pdf) — dominionenergy.com · tier other
- [Governor Morrisey Announces 2.6 GW Natural Gas Power Plant in Grant County, Existing Coal Station Remains Operational | WV Office of the Governor Patrick Morrisey](https://governor.wv.gov/article/governor-morrisey-announces-26-gw-natural-gas-power-plant-grant-county-existing-coal) — governor.wv.gov · tier regulatory
- [Dominion Energy 2025 Annual Report](https://www.sec.gov/Archives/edgar/data/715957/000119312526115192/dei-ars-12312025.pdf) — sec.gov · tier regulatory
- [Dominion Closes Sale of West Virginia LDC, Landing State a New Resident Firm](https://naturalgasintel.com/news/dominion-closes-sale-of-west-virginia-ldc-landing-state-a-new-resident-firm/) — naturalgasintel.com · tier other
- [Dominion Solves Mt. Storm’s Fuel-Handling Problems with Improved Coal Silo Design](https://www.powermag.com/dominion-solves-mt-storms-fuel-handling-problems-with-improved-coal-silo-design/) — powermag.com · tier other
- [TICKER – The Virginian-Pilot](https://www.pilotonline.com/1994/11/08/ticker-1639/) — pilotonline.com · tier other
- [Source](https://dominionenergy.com/en/About/Making-Energy/Power-Stations) — dominionenergy.com · tier other
- [Source](https://www.p3powergroup.com/siteFiles/News/D9E36C4B99865FFAB019881BA30059AC.pdf) — p3powergroup.com · tier other
- [Dominion says Mount Storm will continue burning coal sourced from elsewhere - WV MetroNews](https://wvmetronews.com/2026/02/09/dominion-says-mount-storm-will-continue-burning-coal-sourced-from-elsewhere/) — wvmetronews.com · tier other
- [Dominion Energy to build new gas fired power plant at Mt. Storm - WV MetroNews](https://wvmetronews.com/2026/07/28/dominion-energy-to-build-new-gas-fired-power-plant-at-mt-storm/) — wvmetronews.com · tier other
- [October 15, 2025 BY ELECTRONIC DELIVERY Bernard Logan, Clerk Document Control Center State Corporation Commission 1300 E. Main Street, Tyler](https://www.dominionenergy.com/-/media/content/about/our-company/irp/pdfs/2025-integrated-resource-plan-update.pdf) — dominionenergy.com · tier other

## Data quality

- Capacity varies by reporting basis: Dominion lists 1,630 MW net, the 2025 Dominion annual report lists 1,614 MW for Mt. Storm, and the EIA-linked plant record reports 1,680.9 MW. The Clearway acquisition involving a 264 MW Mt. Storm asset concerns a separate wind project, not this coal-and-oil station. No separate sale or acquisition of the fossil Mt. Storm station is identified in the available ownership record. The 2022 sale of Dominion's West Virginia gas-distribution business expressly stated that Dominion would continue to own and operate Mt. Storm. The 2026 Mt. Storm Combined Cycle proposal is a new gas project; the existing coal station was stated to remain operational, so it is not documented as a retirement or repowering of the fossil plant.

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Canonical page: https://askthegrid.com/assets/facilities/mt-storm

Source: Ask the Grid — https://askthegrid.com/