Haiwee Pumped Storage Project — Plant Summary
- EIA Plant ID
- 66686
- Capacity
- 1000 MW
- Primary Fuel
- Hydro
- Technology
- Hydroelectric Pumped Storage
- Status
- Planned
- Location
- Inyo, CA
- Operating Since
- —
- Generators
- 4
- Operator
- Premium Energy Holdings
- Parent Company
- —
- Balancing Authority
- Los Angeles Department of Water and Power
- ISO/RTO
- —
- NERC Region
- WECC
Haiwee Pumped Storage Project
PlannedHydroGEM: announced
Ranked #3 of 247 Hydro plants in CA#22 of 1454 nationally
1000 MW Hydro planned in Inyo, CA — Los Angeles Department of Water and Power
EIAGEM
1,000 MW
Nameplate Capacity
4
Generators
units
Hydroelectric Pumped Storage
Technology
Planned: —
Planned Operation
Location
Coordinates
36.2331, -117.9625
County
Inyo, CA
Nearby Plants
- Owens Valley Solar Project 11Solar1 MW · 4.3 km
- Munro Valley SolarSolar4 MW · 4.6 km
- HaiweeHydro5.6 MW · 13.7 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Premium Energy Holdings | Premium Energy | — |
| Owner(s) | Premium Energy Holdings | Premium Energy | — |
| Status | Planned | announced | — |
Ownership Chain
GEM identifies the owner as Premium Energy
This entity is not yet in the GEM ownership database — chain unavailable.
About
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
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 (3)Beta
Hazards·extreme heat
Heat Advisory: Owens Valley; Esmeralda and Central Nye County; Lincoln County
Heat Advisory issued March 21 at 2:16AM PDT until March 21 at 8:00PM PDT by NWS Las Vegas NV
NWS Las Vegas NV·5 days ago
Regulatory·ferc order
Summary of FERC Meeting Agenda for June 2025
Summaries of the agenda items for the Federal Energy Regulatory Commission's monthly open meeting to be held on June 26, 2025.
Federal Energy Regulatory Commission (regulator)
White & Case LLP·9 months ago
Regulatory·ferc order
Pumped Storage in the Eastern Sierra: Sacrifice Areas for Renewable Energy?
Premium Energy Holdings has filed applications with FERC (Federal Energy Regulatory Commission) for two pumped storage projects: Haiwee and...
Premium Energy Holdings (developer)FERC (regulator)
Sierra Club·6 years ago
Last updated 2026-03-21
View all articles