Annual battery energy storage system (BESS) failures per-deployed-GWh declined 98% globally between 2018 and 2025, as installed BESS capacity grew exponentially.

BESS safety issues become all too visible when it’s already too late, but a considered approach through the full lifecycle can mitigate these and many other risks, writes Sunny Rai from Intertek.

Battery storage failure incidents have dramatically decreased in frequency in the last few years, but the industry still needs to be more transparent and share data when incidents occur.