Resources
Want to go further? This resource library connects you with the tools, codes, and best practices that support every topic featured in the Guidebook.
Code Compliance
California Department of General Services (DGS)
2025 California Title 24 Building Standards Codes
California Building Standards Codes under Title 24
EnergyCodeAce
California code compliance tools, training, and resources
No-cost trainings and resources to help users comply with CA Title 24, Part 6 and Title 20 appliance standards
Independent Alliance of the Electrical Industry (IAEI)
Digital Education On-Demand Training
Trainings on national electrical code changes
Sustainable Energy Action Committee (SEAC)
SEAC Energy Storage Resources
Compilation of resources to address code and technical challenges to ESS deployment
ESS Plan Review and Inspection
California Public Utilities Commission (CPUC)
Safety Best Practices for the Installation of Energy Storage
Energy storage installation safety inspection checklist
SolSmart
National Simplified Residential PV and Energy Storage Permit Guidelines
Simplified Residential PV and Energy Storage permitting guidelines
Fire Safety
UL Solutions
UL 9540A Test Method: Page
Resources on test method for investigating ESS thermal runaway.
Sustainable Energy Action Committee (SEAC)
Informational Bulletin on UL 9540 Safety Standards
High-level overview of UL 9540 and UL 9540A
National Fire Protection Association (NFPA)
Energy Storage & Solar Systems, Safety Training Program
NFPA resources on ESS and solar safety
National Fire Protection Association (NFPA)
Energy Storage Systems Fact Sheet
NFPA ESS safety fact sheet
Energy Storage Equipment
California Energy Commission
CEC Approved Equipment Lists
Database of equipment, including ESS under 250 kWh and over 250 kWh, that meets established safety and performance standards