UL 9540A uses a four-level test sequence—cell, module, unit, installation—where passing at any level can stop further testing. The results help satisfy building-code authorities (e. UL 9540 provides a basis for safety of energy storage systems that includes reference to critical technology safety standards and codes, such as: The standard includes additional criteria to address materials, enclosures, including walk-in enclosures, controls, piping, utility grid interaction, and. UL 9540 “Energy Storage Systems and Equipment” is the widely referenced system-level safety standard for stationary Energy Storage Systems (ESS) in North America, and codes such as the International Fire Code, starting from the 2018 edition, require ESS to be listed in accordance with UL 9540. To mitigate risks, a range of codes and standards guide the design, installation, operation, and testing of energy storage systems. Whether you are an engineer, AHJ, facility manager, or project developer, TERP consulting's BESS expert Joseph Chacon, PE, will outline the key codes and standards for. Schwalb, with over 20 years of product safety certification experience, is responsible for the development of technical requirements and the interpretation of UL standard requirements for Energy Storage Systems (ESS), stationary batteries, fuel cells and hydrogen generators. UL 9540 changes. If you're involved in the energy storage industry, you've likely heard of UL 9540 —a standard that is becoming increasingly important in ensuring the safety and reliability of energy storage systems. Whether you're a manufacturer, installer, or end user, understanding UL 9540 is crucial.