Calistoga Resiliency Center


SCH Number
Public Agency
City of Calistoga
Document Title
Calistoga Resiliency Center
Document Type
NOE - Notice of Exemption
Document Description
The Project requests Use Permit and Design Review entitlements on a portion of a developed parcel for a proposed hydrogen substation microgrid consisting of a lithium-ion battery energy storage system and hydrogen fuel cells with a liquid hydrogen storage tank and ancillary improvements. The total project footprint will occupy approximately 0.71 acres al operation. A temporary construction staging area will occupy approximately 0.4 acres, east of the site. The substation equipment will sit on concrete slabs with gravel in between. Facility access will be restricted to critical and maintenance personnel and hydrogen tanker fill operators. An approximately 8-foot security fence will be constructed on all sides of the property and a security system with cameras, intrusion detection, and continuous remote monitoring will be provided.

Contact Information

Lisa A Warren
Agency Name
Calistoga Resiliency Center
Job Title
Contact Types
Project Applicant

Jeff Mitchem
Agency Name
City of Calistoga
Job Title
Planning & Building Director
Contact Types
Lead/Public Agency


Parcel #
011-260-002 and-003
State Highways
SR 128; SR 29

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Class 1, Class 2, Class 3
Reasons for Exemption
The Project involves negligible expansion of the existing use; The Project replaces an existing backup diesel fueled microgrid that is capable of generating 8MW with an 8.5MW capacity hydrogen fueled microgrid for backup power generation during PSPS events; The Project is limited to the placement of equipment consisting of a battery energy storage system, fuel cells, a liquid hydrogen storage tank, and ancillary improvements to accommodate the microgrid; The Project activities would occur within an underutilized portion of a site that is currently occupied by existing public and quasi-public uses and supportive utility uses; and there are no exceptions that would render the exemption(s) inapplicable. For additional justification. see CEQA Exemption Analysis. Attachment 6, to the June 14. 2023 Planning Commission Agenda.
County Clerk


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