Demonstrating Code-compliant Energy Storage Systems and Their Capabilities for Grid Harmonization


SCH Number
Public Agency
California Energy Commission
Document Title
Demonstrating Code-compliant Energy Storage Systems and Their Capabilities for Grid Harmonization
Document Type
NOE - Notice of Exemption
Document Description
The purpose of this project is to install and evaluate the performance of commercially available energy storage in new construction single-family homes and multifamily affordable housing complexes, assess the values of energy storage for the customer, and determine whether any future changes would be required to Title 24 building code. Title 24 recently requires solar on all new construction. It is anticipated that developers will be offering energy storage to customers and customers may be asking for energy storage to enable them to reduce electricity costs and provide backup power during a grid outage. This project will install and connect energy storage units to solar panels being installed by developers at approximately 15 new single-family homes and two multifamily affordable housing complexes which are either currently being built or in the planning stage and evaluate the performance of the energy storage for at least one year. This project will provide benefits for the homeowners, multifamily affordable housing owners and tenants, the utility grid, and IOU ratepayers.

Contact Information

Hatice Gecol
Agency Name
California Energy Commission
Contact Types
Lead/Public Agency

Agency Name
Electric Power Research Institute, Inc.
Contact Types
Project Applicant


Carmel Valley, Clovis, Guadalupe, Rohnert Park, Santa Maria, Santa Rosa
Fresno, Monterey, Santa Barbara, Sonoma
Other Location Info
35030 Sky Ranch Road Carmel Valley 93924 Monterey Varies - Ridge View single-family homes located between Quincy Ave & N locan Ave Clovis 93612 Fresno Varies - The Highlands single-family homes located between E Shaw Ave and N Highland Clovis 93612 Fresno Varies - Willowglen single-family homes located between Bodway Pkwy, Valley House Dr, and Petaluma Hill Rd Rohnert Park 94928 Sonoma Varies Santa Rosa 95403 Sonoma 4202 11th Street Guadalupe 93434 Santa Barbara 665 Sierra Madre Ave Santa Maria 93454 Santa Barbara

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Cal. Code Regs., tit 14, § 15301 ; Cal. Code Regs., tit 14, § 15303
Reasons for Exemption
California Code of Regulations, title 14, section 15301 ("Existing Facilities") provides that projects which consist of the operation, repair, maintenance, permitting, leasing, licensing, or minor alteration of existing public or private structures, facilities, mechanical equipment, or topographical features, involving negligible or no expansion of existing or former use, are categorically exempt from the provisions of the California Environmental Quality Act. The project will install lithium - ion (Li-ion) battery energy storage units at approximately 15 fully developed single family homes and two multifamily affordable housing complexes with existing rooftop solar photovoltaic panels. Installation will require minor alterations to the interior or the exterior of the garages of the single-family homes and the interior of the building utility rooms of the multifamily affordable housing complexes with no expansion of footprint. Specifically, containerized energy storage units will be installed near the electrical panel in the existing garage of each home and the building utility room of each multifamily affordable housing complex and connected to the home's and building's rooftop solar. For these reasons, the project will have no significant environmental impact and falls under section 15301. See NOE for full details.


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