2022129 · battery energy storage systems (BESS). 1 The test methodology in UL 9540A evaluates the behavior of a battery system undergoing thermal runaway. Additionally, it evaluates the system''s potential for thermal runaway, fire, and explosion hazard. Data from the UL 9540A test can address code
2022121 · Three installation-level lithium-ion battery (LIB) energy storage system (ESS) tests were conducted to the specifications of the UL 9540A standard test method [1]. Each test included a mocked-up initiating ESS unit rack and two target ESS unit racks installed within a standard size 6.06 m (20 ft) International Organization for
UL 9540: Energy Storage Systems and Equipment; UL 1973: Batteries for Use in Stationary and Motive Auxiliary Power Applications; UL 1642: Lithium Batteries; UL 1741: Inverters, Converters, Controllers, and Interconnection System Equipment for Use with Distributed Energy Resources; UL 9540A: Test Method for Evaluating Thermal Runaway Fire
To access UL''s 9540A testing database, visit To join the UL 9540A database, download the manufacturer''s authorization form here. Learn about
5 · The UL 9540A Test Method, the ANSI/CAN/UL Standard for Test Method for Evaluating Thermal Runaway Fire Propagation in Battery Energy Storage Systems,
3 · We developed the UL 9540A, the Standard for Test Method for Evaluating Thermal Runaway Fire Propagation in Battery Energy Storage Systems, to help manufacturers have a means of proving compliance
UL 9540A is a testing procedure that evaluates and documents the fire performance of stationary ESS and was introduced as a compulsory requirement for all residential
2024313 · UL 9540 ≠ UL 9540A. UL 9540 defines a system-level listing standard. UL 9540A defines a specific test methodology. Despite how similar their names are, the two things are not the same and should not be conflated. There is no certification for UL 9540A. Certification to UL 9540 requires UL 9540A testing if indicated by the codes your AHJ
3 · In order to achieve a UL 9540 certification or listing, a residential energy storage system must meet the unit level performance criteria of UL 9540A when the spacing
4 · The UL Solutions brand is the hallmark for compliance and safety across myriad industries. As our demand for more energy and new battery-driven technologies has grown, we have helped verify they have been delivered to the market safely and reliably. The safety process is only the beginning of our expertise. Decades of knowledge and experience
2020520 · The second edition of UL 9540 has new requirements that limit the maximum energy capacity of individual nonresidential electrochemical ESS to 50 kWh unless they comply with UL 9540A fire
UL 9540A is a crucial testing standard designed to evaluate the safety and reliability of energy storage systems (ESS). As the demand for alternative energy sources rises, ESS
Northbrook, Illinois – Oct. 13, 2020 – UL, a leading global safety science company, announced today the launch of a free online database recognizing manufacturers who have completed testing under the ANSI/CAN/UL 9540A Standard for Test Method for Evaluating Thermal Runaway Fire Propagation in Battery Energy Storage Systems (BESS). The
202077 · UL experts will provide a case study with examples to help understand critical details in the reports. Helpful resources such as report review checklists will also be provided. Learning objectives (or key points) Identify critical items in the UL 9540A reports. Learn the impacts of what has changed in the second edition of UL 9540 and how that
Learn about our new full-scale test methods for ESS in UL 9540A; UL9540A 4th Edition AHJ inspection Checklist– PDF Download. Unit Level AHJ checklist. UL Launches UL 9540A Database to Recognize Manufacturers Who Have Completed Testing for Their Energy Storage Systems-Press release. To access UL''s 9540A testing database, visit
2022129 · Building and fire codes require testing of battery energy storage systems (BESS) to show that they do not exceed maximum allowable quantities and they allow for adequate distancing between
Energy storage systems (ESS) consist of equipment that can store energy safely and conveniently, so that companies can use the stored energy whenever needed. UL 9540A – Standard for Test Method for Evaluating Thermal Runaway Fire Propagation in Battery Energy Storage Systems; For suppliers, on our A2LA or ISO 17025 scope, we can test