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United States › Power plants › Hydroelectric plants › California

HYDROELECTRIC PLANTS

Whale Rock Pumped Storage Hydro Project

Whale Rock Pumped Storage Hydro Project is a 600 MW planned hydroelectric plant in San Luis Obispo County, California, operated by Premium Energy Holdings.

Plant statusIn planning
  1. Planning (current stage)
  2. Consented (not yet reached)
  3. Construction (not yet reached)
  4. OperatingTarget Jul 2027 (not yet reached)
  5. Closed (not yet reached)

Planned start of operation reported to EIA: Jul 2027.

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Generators

Each generating unit EIA lists at this plant.

UnitTechnologyCapacityStatusOnlineRetired / planned retirement
WH001Hydroelectric Pumped Storage200 MW Planned, approvals not yet soughtTarget Jul 2027
WH002Hydroelectric Pumped Storage200 MW Planned, approvals not yet soughtTarget Jul 2027
WH003Hydroelectric Pumped Storage200 MW Planned, approvals not yet soughtTarget Jul 2027

Plant details

Operator
Premium Energy Holdings
Location
San Luis Obispo County, California
Balancing authority
CISO
Sector
IPP Non-CHP
Capacity
Planned: 600 MW
EIA plant ID
66685

Location

35.4542, -120.8671

Nearby power plants

Source: U.S. Energy Information Administration, Form EIA-860M, September 2026. Planned dates are targets reported by the developer and often change. Report a problem