Household energy storage product certification

Does ul test large energy storage systems?

Research offerings include: UL can test your large energy storage systems (ESS) based on UL 9540 and provide ESS certification to help identify the safety and performance of your system.

How much energy can a residential energy storage system store?

The installation codes and standards cited require a residential ESS to be certified to UL 9540, the Standard for Energy Storage Systems and Equipment, and may also specify a maximum stored energy limitation of 20 kWh per ESS unit.

Is a lithium ion battery energy storage system certified for residential use?

The International Residential Code (IRC) and NFPA 855, Standard for the Installation of Stationary Energy Storage Systems, both have criteria for lithium-ion battery energy storage systems (ESSs) intended for use in residential applications. How can I verify that an ESS is certified for residential use?

What is the energy storage standard?

The Standard covers a comprehensive review of energy storage systems, covering charging and discharging, protection, control, communication between devices, fluids movement and other aspects.

What is an energy storage system (ESS) battery?

Avoid risks, enhance market access An Energy Storage System (ESS) battery, incorporates one or more cells, modules or battery packs which is controlled by a battery management system (BMS). These batteries are typically encased in one with terminals to connect to other products. Some ESS batteries may also have cooling and heating units within.

What is the maximum energy capacity of a residential electrochemical ESS?

The current edition of UL 9540 limits the maximum energy capacity of an individual electrochemical ESS for residential use to 20 kWh (72 MJ). Currently, there is no requirement in UL 9540 for these units to be marked “Residential Use,” but such a marking has been proposed for UL 9540 for the next edition.