UL Solutions has introduced enhancements to its testing strategies for battery vitality storage techniques (BESS) that handle business improvements, together with take a look at strategies for non-lithium-ion battery chemistries, corresponding to sodium-ion batteries, that replicate the evolution of battery expertise whereas persevering with to deal with fireplace danger mitigation.
Credit score: e-STORAGE and UBS Asset Administration
The modifications replicate updates discovered within the fifth version of ANSI/CAN/UL 9540A, the Standard Test Method for Evaluating Thermal Runaway Fire Propagation in Battery Energy Storage Systems, the American and Canadian nationwide normal for addressing thermal runaway propagation for vitality storage techniques. The fifth version was printed by UL Standards & Engagement after collaboration with the vitality storage business, regulatory authorities and others serving on the usual’s technical committee.
“We’re dedicated to working with business to convey safer merchandise to market and empower the protected and sustainable progress of the vitality storage market,” stated Wesley Kwok, VP and basic supervisor of the vitality and industrial automation group at UL Options. “These collaborative efforts with business stakeholders and the fireplace security neighborhood finally improve the resilience of our vitality infrastructure and defend communities worldwide.”
ANSI/CAN/UL 9540A offers a standardized take a look at methodology to find out a battery expertise’s susceptibility to thermal runaway. The take a look at methodology additionally evaluates fireplace and explosion hazards resulting from thermal runaway, such because the ejection of sizzling particles. After testing, a report offers information used to find out the mandatory fireplace and explosion safety wanted for examined BESS installations. The information from the report is used for demonstrating compliance with codes and set up requirements, corresponding to NFPA 855 and the Worldwide Fireplace Code.
The unique testing strategies for thermal runaway propagation for vitality storage techniques have been developed in 2017. After a number of revisions, UL has landed on this fifth version. Key enhancements embrace clearer standards for cell-to-cell propagation, high-temperature take a look at strategies for numerous battery chemistries and testing protocols for rising functions corresponding to rooftop and open-garage BESS installations.
Whereas ANSI/CAN/UL 9540A focuses particularly on the take a look at methodology, the associated UL normal, UL 9540, the Standard for Energy Storage Systems and Equipment, offers complete product security standards and the premise for UL certification of the whole BESS itself. This consists of its battery cells, modules and racks, and energy conversion, battery administration, vitality administration, communication and security techniques. The coordinated utility of UL 9540A and UL 9540 and adherence to related set up codes assist assist the protected deployment of BESS.
“The speedy integration of vitality storage throughout all sectors calls for unwavering concentrate on mitigating fireplace and explosion dangers and shut engagement with business, regulators and different consultants. This should be completed with a powerful basis of science, as security and reliability are paramount to the worldwide vitality transition,” stated Ken Boyce, VP of principal engineering at UL Options.
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