PowerPlantFactsEvidence report · prepared 2 September 2026https://powerplantfacts.com/entity/66685
EIA plant 66685
Cayucos · San Luis Obispo · CA
Whale Rock Pumped Storage Hydro Project
Operated by Premium Energy Holdings
Published location
Where is Whale Rock Pumped Storage Hydro Project?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
35.454196, -120.867069
Open the interactive map ↗Map data © OpenStreetMap contributors
Capacity is not generation. Nameplate MW describes equipment; annual MWh describes recorded output. Proposed and retired units are not added to operating capacity.
Operating generators
| ID | Technology | Fuel | MW | Status |
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Similar-capacity plants in the same state
Identity, technology and limitations
EIA plant ID
66685
Sector
IPP Non-CHP
Water source
Whale Rock Reservoir
Data edition
2024-final