Willow Rock Energy Storage Center (WRESC)
Summary
SCH Number
2025121183
Lead Agency
California Energy Commission
Document Title
Willow Rock Energy Storage Center (WRESC)
Document Type
NDE - Notice of Decision
Received
Posted
12/29/2025
Document Description
This project does not have an existing SCH number.
WRESC would be a nominal 520-megawatt (MW) gross (500 MW net) and 4,160 megawatt-hour (MWh) gross (4,000 MWh net) facility using proprietary, advanced compressed air energy storage technology. Bulk-scale energy stored at the WRESC would be delivered to Southern California Edison’s (SCE’s) Whirlwind Substation via a new approximately 19-mile long 230-kilovolt (kV) generation-tie (gen-tie) line.
Contact Information
Name
Eric Veerkamp
Agency Name
California Energy Commission
Job Title
Project Manager
Contact Types
Lead/Public Agency / Project Applicant
Phone
Location
Cities
unincorporated area
Counties
Kern
Regions
Countywide, Southern California
Cross Streets
Sierra Highway and State Route 14
Zip
93560
Total Acres
80
Jobs
150
Parcel #
431-022-13
State Highways
State Route 14
Railways
Union Pacific Railway
Airports
None
Schools
None
Waterways
None
Township
10
Range
12W
Section
33
Other Location Info
The Willow Rock Energy Storage (WRESC) project is located on a portion of parcel 431-022-13, immediately north of Dawn Road, between Sierra Highway and State Route 14, approximately 4 miles north of Rosamond, in Kern County, California
Notice of Determination
Approving Agency
California Energy Commission
Approving Agency Role
Lead Agency
Approved On
County Clerk
Kern
Final Environmental Document Available at
https://efiling.energy.ca.gov/Lists/DocketLog.aspx?docketnumber=21-AFC-02
Determinations
(1) The project will have a significant impact on the environment
Yes
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
No
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
No
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
Yes (Functional Equivalent Document (FED) - certified regulatory program)
(3) Mitigated measures were made a condition of the approval of the project
Yes
(4) A mitigation reporting or monitoring plan was adopted for this project
Yes
(5) A Statement of Overriding Considerations was adopted for this project
Yes
(6) Findings were made pursuant to the provisions of CEQA
Yes
Attachments
Notice of Determination
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