ESN Premium discusses the sixth edition of the key industry safety standard, UL9540A, with Dana Parmenter of the standards organisation and NRTL, CSA Group.

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.