Sungrow PowerKeeper Achieves Triple UL 9540A Certification
Sungrow's PowerKeeper is the first modular C&I energy storage system to receive triple UL 9540A certification, validating its thermal runaway prevention across cell, module, and unit levels. This achievement sets a new safety standard for energy storage in commercial and industrial applications.

Sungrow's PowerKeeper has achieved triple UL 9540A certification, undergoing comprehensive thermal runaway testing across cell, module, and unit levels. This certification confirms that PowerKeeper can effectively contain thermal runaway in high-density environments such as shopping malls and factories, addressing the limitations of traditional single-tier testing.
The system demonstrated minimal thermal spread even under extreme conditions, with a peak cell temperature of 595.2°C, while maintaining temperatures significantly below UL thresholds in adjacent units. The integration of advanced active safety mechanisms enhances everyday operational safety, establishing a comprehensive safety architecture. This development is pivotal as the global demand for safe and efficient commercial and industrial energy storage solutions continues to grow.




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