CLOU Aqua C2.5 Establishes Unprecedented Safety Benchmark with 59-Hour Large-Scale Fire Test
- CLOU Aqua C2.5 completed a Large-Scale Fire Test lasting 59 hours and 10 minutes, establishing a new safety benchmark.
- The system showed exceptional resilience, maintaining structural integrity while enduring temperatures over 1,300°C.
- There was no thermal runaway propagation between the initiating Battery Energy Storage System and nearby BESSs.
- The entire test was fully witnessed and documented by CSA Group personnel throughout the process.
73 Articles
73 Articles

CLOU Aqua C2.5 Establishes Unprecedented Safety Benchmark with 59-Hour 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…
BESS fire test completed by CLOU Electronics in China
Large-scale BESS test withstands high heat without thermal spread CLOU Electronics has reported that its Aqua C2.5 5MWh liquid-cooled BESS successfully completed a 59-hour and 10-minute large-scale fire test. The test was witnessed and documented by CSA Group personnel in full. According to the company, the test subjected the system to flames exceeding 1,300°C and […]
CLOU Aqua C2.5 Establishes Unprecedented Safety Benchmark with 59-Hour Large-Scale Fire Test - PressReach
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…
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