Water isn’t always the best answer to BESS fires

Share

From ESS News

In the event of a battery energy storage system (BESS) fire, a gut reaction may be to douse the system in water. But that’s not always the best response.

Battery experts instead suggest a more defensive cooling approach that prioritizes fire containment over fire suppression.

“We primarily deal with two hazards: normal fire events and explosion events,” Mishaal SyedNaveed, a senior fire protection engineer at Wärtsilä Energy Storage, told pv magazine USA. He explained that battery failure risks thermal runaway, which boosts the risk of explosions if gases ignite. As such, SyedNaveed noted, directly spraying liquid on the battery enclosure can actually make things worse.

This content is protected by copyright and may not be reused. If you want to cooperate with us and would like to reuse some of our content, please contact: editors@pv-magazine.com.

Popular content

Water-spray cooling can improve PV module efficiency by 28% in arid environments
10 March 2026 An Algerian research team has developed a smart water-spray cooling system for PV panels that activates only when temperatures exceed a set threshold...