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Chokepoints
Grid Storage
Smith Mountain Pumped Storage hydroelectric plant
80th-largest grid storage in United States of 101 · top 82% worldwide (#791 of 965)
- Operator
- Appalachian Power
- Owner
- Appalachian Power Co
- Status
- operating
- Capacity
- 247 MW
- Technology
- pumped storage
- Commissioned
- 1965
- Also listed as
- A power plant — this site generates as well as stores
Comparable grid storages · United States · 101 ranked
- #1Red Lake Pumped hydroelectric plant3.0 GW
- #78Silver Creek Pumped Storage hydroelectric plant250 MW
- #79Twentymile Pumped hydroelectric plant250 MW
- #80Smith Mountain Pumped Storage hydroelectric plant247 MW
- #81Lewiston Niagara hydroelectric plant240 MW
- #82Cabin Run Pumped hydroelectric plant230 MW
Grid connection · within 50 km
- Nearest substation
- Axton Substation
- Its voltage
- 765 kV
- Distance
- 48 km
- Strongest line nearby
- 765 kV
- Line operator
- Appalachian Power Company
- Substations in range
- 4
Mapped grid infrastructure from OpenStreetMap, whose coverage is excellent in some regions and sparse in others. Nothing shown here means nothing is mappednearby — not that the site is unconnected. Lines are matched on a segment’s midpoint, so a corridor passing directly overhead can be missed; this under-reports rather than invents.
Co-located infrastructure · within 25 km
- Smith Mountain hydroelectric plant0 m · Power Plant · 300 MW · hydro
- Smith Mountain Pumped Storage hydroelectric plant0 m · Power Plant · 247 MW · hydro
On the interactive map
Portfolio
Watercourse: Roanoke River
SOURCE: Global Energy Monitor · Global Integrated Power, March 2026 (CC BY 4.0)