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Chokepoints
Grid Storage
Saddle Mountains Pumped Storage hydroelectric plant
56th-largest grid storage in United States of 101 · top 67% worldwide (#643 of 965)
- Owner
- PacifiCorp
- Status
- proposed
- Capacity
- 500 MW
- Technology
- pumped storage
- 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
- #54Rock Canyon Pumped Storage hydroelectric plant500 MW
- #55Rocky Ridge Pumped Storage hydroelectric plant500 MW
- #56Saddle Mountains Pumped Storage hydroelectric plant500 MW
- #57San Vicente Energy Storage hydroelectric plant500 MW
- #58South Fork Pumped Storage hydroelectric plant500 MW
Grid connection · within 50 km
- Nearest substation
- Vantage Substation
- Its voltage
- 500 kV
- Distance
- 5.8 km
- Strongest line nearby
- 500 kV
- Substations in range
- 3
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
- Saddle Mountains Pumped Storage hydroelectric plant0 m · Power Plant · 500 MW · hydro
- 500 kV line5.6 km · Transmission Line
- Vantage Substation 500/230kV Tie No 15.7 km · Transmission Line
- Vantage Substation5.8 km · Substation / Converter
- Wanapum hydroelectric plant6.0 km · Power Plant · 1.2 GW · hydro
- Wanapum hydroelectric plant6.0 km · Power Plant · 1.0 GW · hydro
- Midway-Vantage No 1;Schultz-Wautoma No 116 km · Transmission Line
On the interactive map
Portfolio
SOURCE: Global Energy Monitor · Global Integrated Power, March 2026 (CC BY 4.0)