Pilot Demo of Ultra Low Cost, Long-Duration Energy Storage Coupled to Solar Power


SCH Number
Public Agency
California Energy Commission
Document Title
Pilot Demo of Ultra Low Cost, Long-Duration Energy Storage Coupled to Solar Power
Document Type
NOE - Notice of Exemption
Document Description
This project will scale-up an ultra-low-cost, long-duration battery technology from TRL4 to TRL 6. The battery stores energy by splitting CO2 into solid carbon and oxygen in a flow battery configuration, utilizing abundant materials and simple reaction chemistry. At <$1 per kWh capacity for the storage media, it will provide long-duration storage at below $20 per kWh capacity, much lower than existing storage technologies. During the project, a 5kW and 100kW battery will be built and tested at an industrial demonstration site. The battery technology will be housed within a 20-ft shipping container and transported to the site.

Contact Information

Joshua Croft
Agency Name
California Energy Commission
Contact Types
Lead/Public Agency


San Joaquin
Cross Streets
8105 S Lassen Ave

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Cal. Code Regs., tit. 14, § 15303
Reasons for Exemption
Class 3 projects that consist of the construction and location of limited number of new, small facilities or structures not exceeding 2500 square feet in floor area, 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 the California Environmental Quality Act. This project involves the demonstration of battery technology in one small structure consisting of a 20 ft x 8 ft shipping container which is significantly smaller than 2500 square feet. The project also includes the installation of a concrete pad and electrical connecting equipment, such as a transformer, that will serve the structure. Therefore, this project is categorically exempt from environmental review as a Class 3 project pursuant to Cal. Code Regs., tit. 14 § 15303.


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