Data last collected:
PowerPlantFactsEvidence report · prepared 19 October 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
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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
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Questions this evidence can answer
01What exactly is this record?
Use the name, place, date and identifiers above to confirm that you have the right Whale Rock Pumped Storage Hydro Project power plant: capacity and generation | PowerPlantFacts record.
02What does the evidence establish?
Read the reported values with their units, coverage dates and source notes. Keep observed facts separate from estimates or interpretation.
03What should I verify next?
Follow the primary-source links and check the limitations before using this evidence for a decision, comparison or citation.