Intermountain Pumped Storage Project — Plant Summary
- EIA Plant ID
- 66684
- Capacity
- 1000 MW
- Primary Fuel
- Hydro
- Technology
- Hydroelectric Pumped Storage
- Status
- Planned
- Location
- Millard, UT
- Operating Since
- —
- Generators
- 4
- Operator
- Premium Energy Holdings
- Parent Company
- —
- Balancing Authority
- Los Angeles Department of Water and Power
- ISO/RTO
- —
- NERC Region
- WECC
Intermountain Pumped Storage Project
PlannedHydro
Ranked #1 of 30 Hydro plants in UT#21 of 1454 nationally
1000 MW Hydro planned in Millard, UT — Los Angeles Department of Water and Power
EIA
1,000 MW
Nameplate Capacity
4
Generators
units
Hydroelectric Pumped Storage
Technology
Planned: —
Planned Operation
Location
Coordinates
39.4147, -112.4404
County
Millard, UT
Nearby Plants
- Utah Solar 1Solar300 MW · 11.6 km
- Gale 1 SolarBESS450 MW · 15.1 km
- Intermountain Power ProjectBit. Coal2480 MW · 16.0 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Premium Energy Holdings | — | — |
| Owner(s) | Premium Energy Holdings | — | — |
| Status | Planned | — | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
The Intermountain Pumped Storage Project is a 1,000 MW pumped hydroelectric storage facility located in Millard County, Utah. It is owned and operated by Premium Energy Holdings. The plant utilizes water as its primary fuel source and consists of 4 generators employing hydroelectric pumped storage technology. It is the largest of two pumped storage plants in Utah, and ranks 23rd out of 194 such facilities nationally.
The Intermountain plant is located within the Western Electricity Coordinating Council (WECC) NERC region. Its balancing authority is the Los Angeles Department of Water and Power, indicating its role in serving load outside of Utah.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
Los Angeles Department of Water and Power
Grid Voltage
230 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Generation
No generation data available for this plant.
Financial Data
No financial data available for this plant.
Pricing & Market Data
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
News & Articles (1)Beta
Industry·technology
US hydropower sector shifts toward storage as conventional capacity plateaus, says GlobalData report
Investment in long-duration storage is reshaping the role of hydropower in the US electricity system, as developers prioritise grid...
GlobalData (other)
International Water Power·4 weeks ago
Last updated 2026-03-14
View all articles