Query
Whale Rock Pumped Storage Hydro Project
Type
Entity Briefing
Entity
Whale Rock Pumped Storage Hydro Project
Technology
hydro
Generated
2026-10-18T12:42:26.538Z

Briefing on Whale Rock Pumped Storage Hydro Project

Entity Briefing
Generated Oct 18, 2026·Dataset freshness not reported
600 MW
Capacity
Planned
Current status
3
Generators
Briefing/plantPlanned

Whale Rock Pumped Storage Hydro Project is a 600 MW Hydroelectric Pumped Storage asset in CAISO (California), currently Planned.

Whale Rock Pumped Storage Hydro Project is reported in California under Premium Energy Holdings. Available operating and financial measures include $1415/kW reported CapEx.

Location
San Luis Obispo, California
Technology
Hydroelectric Pumped Storage
Owner / parent
Premium Energy Holdings
Operator
Premium Energy Holdings
Grid
CAISO (California)
Plant ID
66685

What stands out

1

Whale Rock Pumped Storage Hydro Project is a 600 MW Hydroelectric Pumped Storage asset in California with status Planned.

2

Available financial measures include $1415/kW CapEx.

3

Latest linked story: “Hydroelectric Plant Proposed For Whale Rock Reservoir” (Estero Bay News, 2022-05-20).

Market and operating context

ISO / market
CAISO (California)
Balancing authority
California Independent System Operator
NERC region
WECC
State rank
#6 of 247
National rank
#42 of 1,462

Why it matters

For this asset in CAISO (California), operating status, generation, ownership, and linked events are the primary facts for performance and asset-level diligence. The exact chart and source-linked records below let the reader test those facts before moving to a deeper report.

Whale Rock Pumped Storage Hydro Project — verified asset snapshot

FieldValue
LocationSan Luis Obispo, California
TechnologyHydroelectric Pumped Storage
Owner / parentPremium Energy Holdings
OperatorPremium Energy Holdings
GridCAISO (California)
Plant ID66685
ISO / marketCAISO (California)
Balancing authorityCalifornia Independent System Operator