ul9540a

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April 1, 2026
ESN Premium discusses the sixth edition of the key industry safety standard, UL9540A, with Dana Parmenter of the standards organisation and NRTL, CSA Group.
March 17, 2026
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.”
September 18, 2025
The US National Fire Protection Association (NFPA) has launched the newest edition of its cornerstone battery storage safety standard, NFPA 855.
September 17, 2025
South Korean battery and electronics materials manufacturer Samsung SDI debuted its new battery energy storage system (BESS) products at the RE+ trade show in Las Vegas, US.
April 24, 2025
New UL9540A test aims to further enhance battery storage fire safety, while large-scale fire testing (LSFT) aims to address remaining gaps.
January 24, 2025
Known facts and expert opinion on last week’s fire incident at Moss Landing Energy Storage Facility in California.
December 16, 2024
Lithium-ion battery storage system integrator Fluence and iron-air battery startup Form Energy have completed fire safety and explosion testing of energy storage technologies.
November 21, 2024
EVLO’s battery energy storage system (BESS) solution has been recertified for the UL9540 standard ahead of deployments for US utility Dominion Energy in Virginia.
November 11, 2024
Wärtsilä has carried out more large-scale fire tests on its battery storage units, which the system integrator claimed closely resemble real-life ‘worst-case scenario’ conditions.
June 24, 2024
Sungrow claimed fire test proves the safety of its battery energy storage system (BESS) solution even in the event of thermal runaway.

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