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Chokepoints
Grid Storage
Seminoe Pumped Storage hydroelectric plant
27th-largest grid storage in United States of 101 · top 54% worldwide (#512 of 965)
- Owner
- rPlus Hydro LLLP
- Status
- construction
- Capacity
- 900 MW
- Technology
- pumped storage
- Commissioned
- 2031
- 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
- #25Tehachapi Pumped Storage hydroelectric plant1.0 GW
- #26White Pine Pumped Storage hydroelectric plant1.0 GW
- #27Seminoe Pumped Storage hydroelectric plant900 MW
- #28Rocky Mountain hydroelectric plant848 MW
- #29JD Sky Pumped Storage hydroelectric plant800 MW
Grid connection · within 50 km
- Nearest substation
- Aeolus Substation
- Its voltage
- 500 kV
- Distance
- 45 km
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
- Seminoe Pumped Storage hydroelectric plant0 m · Power Plant · 900 MW · hydro
On the interactive map
Portfolio
Watercourse: North Platte River
SOURCE: Global Energy Monitor · Global Integrated Power, March 2026 (CC BY 4.0)