LightSail Compressed Air Energy Storage


SCH Number
Public Agency
University of California San Diego
Document Title
LightSail Compressed Air Energy Storage
Document Type
NOE - Notice of Exemption

Document Description
LightSail Energy, along with its partner UC San Diego, would pilot test isothermal compressed air energy storage (ICAES) system for use in integrating renewable energy and providing grid support. The project would consist of a 200kW ICAES system installed at UC San Diego's Elliot Field Station that would be connected to an existing 580 volt switchgear station west of the project site. The storage system would store approximately 800kW hours of usable energy and would be capable of charging from the switchgear station to provide load following peak demand. The equipment would be located on concrete pads and standard Best Management Practices (BMPs) would be installed to reduce runoff.

Contact Information
Alison Buckley
University of California San Diego
Lead/Public Agency
9500 Gilman Drive Mail Code 0074
La Jolla, CA 92093-0074

Phone : (858) 534-4464


La Jolla
San Diego
Other Information
10205 Pomerado Road, San Diego, CA 92131

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
15303, 15304, 15306
Reasons for Exemption
Based on the above project description, the LightSail Compressed Air Energy Storage project is classified as an exempt from the provisions of CEQA under Sections 15303 Class 3 New Construction of Small Structures, 15304 Class 4 Minor Alterations to Land and 15306 Class 6 Information Collection. The project consists of construction of a small enclosure and installation of new equipment. Minor alterations to land would occur for the installation of electrical connections to the switchgear station and a concrete pad. Information collection would occur by collecting the ICAES storage performance data and analysis. In addition, none of the exceptions to the exemptions apply.

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at or via phone at (916) 445-0613.

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