CLOU Aqua C2.5 Establishes Unprecedented Safety Benchmark with 59-Hour Large-Scale Fire Test

CLOU Aqua-C2.5 has completed an extraordinary 59-hour and 10-minute Large-Scale Fire Test

SHENZHEN, China, June 24, 2025 /PRNewswire/ -- CLOU Aqua C2.5 5MWh liquid-cooled energy storage system has successfully completed an extraordinary 59-hour and 10-minute Large-Scale Fire Test - setting a new benchmark for energy storage safety evaluation. The test was fully witnessed and documented by CSA Group personnel throughout the entire process. The system demonstrated exceptional resilience by maintaining complete structural integrity while withstanding temperatures exceeding 1,300°C, without resulting thermal runaway propagation between initiating BESS and target BESSs nearby.

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