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1000 MW Hydro planned in Millard, UT
1,000 MW
Nameplate Capacity
4
Generators
units
Hydroelectric Pumped Storage
Technology
Planned: —
Planned Operation
Coordinates
39.4147, -112.4404
County
Millard, UT
Nearby Plants
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Premium Energy Holdings | — | — |
| Owner(s) | Premium Energy Holdings | — | — |
| Status | Planned | — | — |
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
Grid Region
California (non-ISO)
Market
WEIM Participant
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
Los Angeles Department of Water and Power (LDWP)
Grid Voltage
230.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
No generation data available for this plant.
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2023
$1,415/kW
Est. Construction Cost
Total estimated cost: $1.4B
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This plant's balancing authority participates in CAISO's Western Energy Imbalance Market (WEIM). Direct nodal pricing data is not yet available.
Last updated 2026-03-26
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