Demonstration of LDES to Support Naval Base San Diego Microgrid
Summary
SCH Number
2025040501
Public Agency
California Energy Commission
Document Title
Demonstration of LDES to Support Naval Base San Diego Microgrid
Document Type
NOE - Notice of Exemption
Received
Posted
4/9/2025
Document Description
This project is a grant to demonstrate a long duration energy storage system as part of a mixed resource microgrid system providing multiday resilience for critical facilities in Building 150 at Navy Base San Diego. The Energy Commission funded portion includes a 1 MW, 8 MWh non-lithium-ion battery and associated electrical switchgear and an electrical intertie. The U.S. Navy-funded microgrid includes a new 300 kW solar photovoltaic system, a 50-kW emergency generator set meeting applicable air quality emission standards, and a microgrid controller. Additional minor components consist of energy conservation measures in Building 150 (e.g., interior lamp replacements), transformer replacements, and updating the HVAC system to include ventilation in the server rooms. The project will provide multiple benefits to the
recipient, Naval Base San Diego.
Contact Information
Name
Caitlin Planchard
Agency Name
California Energy Commission
Job Title
Utilities Engineer
Contact Types
Lead/Public Agency
Phone
Location
Counties
San Diego
Regions
Southern California
Cross Streets
Naval Base San Diego
Zip
92136
Total Acres
1,600 land acres
Waterways
San Diego Bay
Base
NBSD
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
Cal. Code Regs., tit. 14, § 15303
Reasons for Exemption
Cal. Code Regs., tit. 14, sec. 15303 provides that projects which consist of construction and location of limited numbers of new, small facilities or structures; installation of small new equipment and facilities in small structures; and the conversion of existing small structures from one use to another where only minor modifications are made in the exterior of the structure, are categorically exempt from the provisions of CEQA. This project will consist of the installation, connection, and demonstration of modular long duration energy storage technologies at an existing military facility. Minor alteration of existing facilities and mechanical equipment in the form of reconfiguration of existing electrical infrastructure will take place before location of skid mounted modular energy storage units are brought into the existing facilities. Additional minor alterations to topographical features include minor grading and/or trenching for concrete pads. Therefore, this project falls within Section 15303.