ESN Premium discusses the sixth edition of the key industry safety standard, UL9540A, with Dana Parmenter of the standards organisation and NRTL, CSA Group.
The new edition of the UL9540A fire safety standard for battery energy storage systems (BESS) “establishes a new precedent in the testing and certification ecosystem.”
With battery storage safety under increasing scrutiny, Wanxiang A123 Systems and Hithium have unveiled new products and large-scale fire testing (LSFT), respectively.
BESS Large-Scale Fire Testing (LSFT) has been adopted as part of best practice thinking on safety validation, with at least a dozen companies announcing tests and results and many more expected going forward. It becomes mandatory in the 2026 edition of NFPA 855.