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.”

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.

Supervisors in Maricopa County, Arizona, have approved a 100MW/400MWh battery storage project from National Renewable Solutions (NRS).

With the final deadline for this year’s California legislative session having passed, now is a good time to analyse the outcomes of several bills that were first introduced earlier this year pertaining to BESS.

The US National Fire Protection Association (NFPA) has launched the newest edition of its cornerstone battery storage safety standard, NFPA 855.

A proprietary explosion control system performed effectively in three recent safety tests conducted on Wärtsilä battery storage equipment.

Andrew Early and Ben Echeverria of EPC Burns & McDonnell continue their list of tips for navigating the choppy waters of battery storage project delivery.

Following in the footsteps of several other US jurisdictions this year, officials at California’s Orange County are one step closer to amending zoning laws to allow the development of BESS. 

Energy storage system safety is being taken to new levels, as evidenced by the fire testing efforts of Chinese market players, writes Carrie Xiao.