Mountaineer
Mason County, West Virginia · EIA plant ID 6264 · Operator: Appalachian Power Co
Nameplate1,300MWSummer 1,299 MW
Generators1in service
Net generation7,150GWh12 mo to Aug 2026
Capacity factor63%gas/coal/oil units, summer MW
Heat rate9,788Btu/kWhfossil units, electric fuel, HHV
First online1980Runs as baseload
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), gas/coal/oil units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 6,113.6 | 53.7% | 9,601 |
| 2002 | 8,985 | 78.9% | 9,439 |
| 2003 | 9,738.2 | 85.5% | 9,300 |
| 2004 | 8,267.9 | 72.4% | 9,368 |
| 2005 | 10,524.1 | 92.4% | 9,306 |
| 2006 | 7,173.7 | 63.0% | 9,345 |
| 2007 | 9,375.4 | 81.7% | 9,780 |
| 2008 | 9,818.6 | 85.3% | 9,620 |
| 2009 | 8,978.2 | 78.2% | 9,720 |
| 2010 | 8,073.9 | 70.4% | 9,792 |
| 2011 | 9,388.4 | 82.4% | 9,696 |
| 2012 | 8,292.6 | 72.7% | 9,972 |
| 2013 | 5,471.4 | 48.1% | 9,905 |
| 2014 | 8,241.2 | 72.4% | 9,737 |
| 2015 | 7,463.2 | 65.6% | 10,005 |
| 2016 | 7,809.4 | 68.4% | 10,013 |
| 2017 | 7,147.2 | 62.8% | 9,784 |
| 2018 | 5,710 | 50.2% | 10,147 |
| 2019 | 8,255.2 | 72.5% | 9,984 |
| 2020 | 5,275 | 46.2% | 10,000 |
| 2021 | 7,132.8 | 62.7% | 9,700 |
| 2022 | 5,216.8 | 45.9% | 9,975 |
| 2023 | 4,968.7 | 43.7% | 10,191 |
| 2024 | 4,725.2 | 41.4% | 10,165 |
| 2025 | 6,870.6 | 60.4% | 9,867 |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| 1 | Conventional Steam Coal | ST | 1,300 | 1,299 | Sep 1980 | Operating | — | coming soon |
Owner / operator
Operator: Appalachian Power Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Appalachian Power Co | 100.0% | 1,300 MW |
Nearby plants
Within 80 km.
| Racine | 47 MW | 7.5 km |
| BHER Ravenswood Solar 1 | 192 MW | 11.8 km |
| Great Bend Solar Project | 48 MW | 14.4 km |
| Gavin Power, LLC | 2,600 MW | 16.5 km |
| Kyger Creek | 1,087 MW | 18.3 km |
| Belleville Dam | 42 MW | 23 km |