CLOU Electronics Achieves Landmark Fire Test Certification for Energy Storage Solutions
In recent years, energy storage safety has become paramount as the sector faces scrutiny following several incidents, including fires at significant facilities like the Moss Landing battery storage plant in California. The fire at Moss Landing on January 16, 2025, reignited discussions about the inherent risks associated with lithium-ion battery energy storage systems. Indeed, this facility has experienced multiple fires, previously in 2021 and 2022, due to battery overheating triggered by unexpected moisture exposure. In light of these ongoing challenges, CLOU Electronics has made a remarkable stride in reinforcing the safety of energy storage solutions, earning the TS-800 fire test certification from the globally recognized CSA Group.
The TS-800 test, introduced in 2024, sets forth rigorous standards for large-scale fire testing of energy storage systems. This protocol aims to optimize safety standards and provide regulatory bodies, fire departments, and insurers with vital data needed for assessing risks associated with these technologies. Given the array of risks—including internal short circuits, overcharging, and environmental impacts—thermal runaway leading to fire has posed a persistent threat within the industry.
CLOU Electronics, a leader in energy storage solutions, has recently demonstrated its commitment to safety by successfully completing the CSA TS-800 Large-Scale Fire Test (LSFT) in February 2025. Their innovative Aqua-C2.5, launched in September 2024, is the world’s first large-scale energy storage system that incorporates an active ventilation fire protection design. Through its pioneering technology, which senses thermal runaway and activates an electric shutter suppression mechanism, the Aqua-C2.5 can effectively contain any potential fire spread while being densely arranged in extreme proximity to other units.
During the rigorous testing conducted under the supervision of CSA, four 20-foot cabinets of the Aqua-C2.5 were subjected to extreme temperatures exceeding 1000°C for 48 hours, simulating real-world fire conditions. Astonishingly, the adjacent cabinets maintained temperatures below 40°C throughout the test, showcasing the system's robust flame retardancy and thermal insulation capabilities. The structural integrity of the units remained intact, solidifying CLOU Electronics' reputation for durability in energy storage products.
Safety is a peculiar challenge in the energy storage industry, especially when attempts to arrange units more densely could risk fire propagation across modules. The existing standards, such as UL 9540A, while adept at testing for thermal runaway, often fall short of simulating real fire scenarios that can escalate from single battery incidents to widespread danger within multi-module systems. Notably, CLOU's Aqua-C2.5 successfully overcame these hurdles, redefining the approach to safety in high-density energy storage systems.
Marvin Peng, a Battery Energy Storage Certifier at CSA Group, emphasized the significance of the TS-800 test, stating that it fills a crucial gap in assessing fire propagation risks within energy storage installations. Alongside CLOU Electronics, other companies are also making strides in fire safety certifications with products that have likewise withstood the challenges posed by intense fire testing.
CLOU Electronics has established a precedent in the energy storage sector with this breakthrough, adhering rigorously to technical specifications and employing effective design strategies, including flame-retardant materials and structural fire barriers. With an impressive arsenal of certifications—including CE, UL, IEC standards, and more—the Aqua-C2.5 exemplifies the fusion of innovation and safety in energy storage technology. As the global demand for reliable and secure energy storage solutions continues to expand, CLOU Electronics is committed to ensuring that its products meet the highest safety standards to protect both consumers and infrastructure. This latest achievement not only sets a benchmark within the industry but also promises to reshape future safety protocols in energy storage systems on a global scale.
The TS-800 test, introduced in 2024, sets forth rigorous standards for large-scale fire testing of energy storage systems. This protocol aims to optimize safety standards and provide regulatory bodies, fire departments, and insurers with vital data needed for assessing risks associated with these technologies. Given the array of risks—including internal short circuits, overcharging, and environmental impacts—thermal runaway leading to fire has posed a persistent threat within the industry.
CLOU Electronics, a leader in energy storage solutions, has recently demonstrated its commitment to safety by successfully completing the CSA TS-800 Large-Scale Fire Test (LSFT) in February 2025. Their innovative Aqua-C2.5, launched in September 2024, is the world’s first large-scale energy storage system that incorporates an active ventilation fire protection design. Through its pioneering technology, which senses thermal runaway and activates an electric shutter suppression mechanism, the Aqua-C2.5 can effectively contain any potential fire spread while being densely arranged in extreme proximity to other units.
During the rigorous testing conducted under the supervision of CSA, four 20-foot cabinets of the Aqua-C2.5 were subjected to extreme temperatures exceeding 1000°C for 48 hours, simulating real-world fire conditions. Astonishingly, the adjacent cabinets maintained temperatures below 40°C throughout the test, showcasing the system's robust flame retardancy and thermal insulation capabilities. The structural integrity of the units remained intact, solidifying CLOU Electronics' reputation for durability in energy storage products.
Safety is a peculiar challenge in the energy storage industry, especially when attempts to arrange units more densely could risk fire propagation across modules. The existing standards, such as UL 9540A, while adept at testing for thermal runaway, often fall short of simulating real fire scenarios that can escalate from single battery incidents to widespread danger within multi-module systems. Notably, CLOU's Aqua-C2.5 successfully overcame these hurdles, redefining the approach to safety in high-density energy storage systems.
Marvin Peng, a Battery Energy Storage Certifier at CSA Group, emphasized the significance of the TS-800 test, stating that it fills a crucial gap in assessing fire propagation risks within energy storage installations. Alongside CLOU Electronics, other companies are also making strides in fire safety certifications with products that have likewise withstood the challenges posed by intense fire testing.
CLOU Electronics has established a precedent in the energy storage sector with this breakthrough, adhering rigorously to technical specifications and employing effective design strategies, including flame-retardant materials and structural fire barriers. With an impressive arsenal of certifications—including CE, UL, IEC standards, and more—the Aqua-C2.5 exemplifies the fusion of innovation and safety in energy storage technology. As the global demand for reliable and secure energy storage solutions continues to expand, CLOU Electronics is committed to ensuring that its products meet the highest safety standards to protect both consumers and infrastructure. This latest achievement not only sets a benchmark within the industry but also promises to reshape future safety protocols in energy storage systems on a global scale.
Topics Energy）
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