Most Common BESS Manufacturing Defects of 2024
In 2024, the Vast Majority of Identified Quality Issues Were At the System Level
Clean Energy Associates (CEA) conducted quality audits at 70+ battery energy storage factories worldwide. Our data shows that system-level defects accounted for 72% of all defects identified in 2024, up from 48%.
28% of systems had fire detection & suppression defects — critical for preventing runaway fires
19% had faulty auxiliary circuit panels — risking control system failure
15% had thermal management defects — increasing the risk of overheating
6% failed capacity tests — meaning they couldn’t deliver the energy they were designed for