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1000 MW Hydro planned in Inyo, CA
1,000 MW
Nameplate Capacity
4
Generators
units
Hydroelectric Pumped Storage
Technology
Planned: —
Planned Operation
Coordinates
36.2331, -117.9625
County
Inyo, CA
Nearby Plants
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Premium Energy Holdings | Premium Energy | — |
| Owner(s) | Premium Energy Holdings | Premium Energy | — |
| Status | Planned | announced | — |
GEM identifies the owner as Premium Energy
This entity is not yet in the GEM ownership database — chain unavailable.
The Haiwee Pumped Storage Project is a 1,000 MW hydroelectric pumped storage facility located in Inyo County, California. It ranks as the third-largest hydroelectric plant in California (out of 42) and 22nd-largest nationally (out of 194). The plant consists of 4 generators and is operated by Premium Energy Holdings. The primary fuel source is water (WAT).
The Haiwee facility 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 maintaining grid stability within that service territory. Recent news articles pertaining to the plant have focused on regulatory matters.
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.
No wholesale contracts disclosed in FERC EQR for this plant.
FERC EQR captures bilateral wholesale energy + capacity contracts ≥$1M/yr filed quarterly by jurisdictional sellers — covers renewable PPAs, thermal energy sales agreements, capacity contracts, and tolling agreements alike. Many plants don't appear: regulated-utility output flows to ratepayers via cost-of-service rather than bilateral contracts; small projects fall below the filing threshold; tax-equity-financed renewables route offtake to investors not utilities; merchant plants sell into ISO clearing markets without bilateral contracts. News-extracted buyer facts (below) may surface contracts disclosed only through announcements.
Last updated 2026-03-14
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