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Battery and Energy Storage Systems (ESS)

The California Energy Commission led the Energy Storage List Working Group, comprised of nationally recognized testing labs, solar and storage equipment manufacturers, trade groups, utilities, and other governmental entities to facilitate the addition of Battery and Energy Storage Systems (ESS) to the Energy Commission’s Solar Equipment Lists.

Effective August 21, 2019, the listing request forms used to request listing of Battery and Energy Storage Systems (ESS) to the Energy Commission's Solar Equipment Lists have been uploaded. The List of Battery and the List of Energy Storage Systems (ESS) are included as separate lists:

  • The Battery List includes electrochemical Battery equipment certified to UL 1973 standards.
  • The Energy Storage Systems (ESS) List includes electrochemical Energy Storage Systems certified to UL 9540 standards.

The forms and instructions can be accessed below.

Please note that the Energy Commission's Solar Equipment Lists updates are typically completed twice a month, on the 1st business day of the month and the 15th of the month or the following business day.

Submit inquiries regarding the Energy Commission's Solar Equipment Lists to the California Energy Commission at SolarEquipment@energy.ca.gov. For any equipment listing related questions, please contact the Solar Equipment Call Center at 916-654-4120.

List of Battery and Energy Storage Systems (ESS)

Effective August 21, 2019, the List of Battery and the List of Energy Storage Systems (ESS) have been added to the Energy Commission’s Solar Equipment Lists.

There is one version of the List of Battery available for download, and two versions of the List of Energy Storage Systems (ESS) available for download – Simplified version and Full Data version. The Simplified version is intended to show basic information such as manufacturer, model number, description, and basic equipment data. The Full Data version contains additional information and more detailed equipment data that may be of interest to stakeholders.

Click on the links below to download the current list of eligible Battery and Energy Storage Systems (ESS):

Battery

Energy Storage Systems (ESS)

Submitted information is reviewed by the California Energy Commission prior to equipment being added to the Energy Commission's Solar Equipment Lists but it is not continuously monitored. The California Energy Commission does not confirm manufacturers' self-reported information. Please note that equipment on the Energy Commission's Solar Equipment Lists have undergone tests to achieve minimal safety and performance standards. The California Energy Commission and the State of California make no claim or warranty on the equipment and its safety, performance or durability. Anyone considering installing solar energy systems are encouraged to conduct their own research.

Eligibility

For information on equipment eligibility and required laboratory-tested data, please refer to the SB 1 Guidelines, Appendix B.

Forms

Instructions

Other Resources

The California Energy Commission is providing consumers a list of resources and links for informational purposes; where they can research topics such as: PV product recalls, contractor license check for solar retailers/ installers or solar installation building and fire code requirements.