On April 11th, WINDEY INNOVOLTS, a brand under WINDEY, held a certificate-awarding ceremony together with TÜV Rheinland Group at the site of the 13th Energy Storage International Conference and Expo (ESIE 2025). Meanwhile, WINDEY INNOVOLTS's VoltPack-L5015 intelligent liquid-cooled energy storage system and VoltBlock-L261 smart liquid-cooled integrated cabinet successfully passed the stringent EU certifications, such as IEC62477, IEC62619, and UL9540A. This marks that WINDEY INNOVOLTS has reached a new high in terms of technological strength and safety standards in the global energy storage field, injecting a strong impetus into the accelerated business deployment of WINDEY INNOVOLTS in overseas mark.
This certification covers the life cycle of "Battery cell - Module - Cluster - System", and the product reliability is verified through multi-dimensional rigorous tests. At the cell level, the products have passed the IEC62619 certification, making the risks of overcharging and thermal runaway are put under strict control. For the control system BMS, it complies with the IEC 60730-1 Annex H standard, achieving millisecond-level fault isolation. For the module and cluster levels, electrical safety as well as fire prevention and explosion suppression capabilities have been subjected to dual verification, so that the spreading risk of thermal runaway is nearly zero. At the system level, the products have passed IEC62477 certification, ensuring their stable output under extreme environments and adaptability for diverse application scenarios. Besides, the products have excellent performance in such respects as mechanical safety (dust-proof, rainproof, anti-seismic, and anti-impact), environmental adaptability (temperature range of -25°C to +55°C, salt spray and damp-heat tests), functional safety (electromagnetic compatibility, intelligent diagnosis of 16 types of faults), and fire prevention and control (UL9540A thermal runaway test), with both product quality and safety performance receiving high recognition internationally.
TÜV Rheinland is a world-leading third-party testing and certification agency, and its certification is not only a recognition of WINDEY INNOVOLTS's technological strength, but also enables WINDEY's brand-new products to have a direct access to the EU and global markets. Li Weichun, vice president of Global Electricity & Electronics Product Services of TÜV Rheinland Group, believes that WINDEY INNOVOLTS has achieved near-zero thermal runaway risk through the safety management and control over the whole link "Battery Cell-Module-Cluster-System", providing overseas customers with energy storage solutions that are "highly safe, highly reliable, and suitable for all scenarios". Sun Yong, general manager of WINDEY INNOVOLTS, said: "Success in passing the TÜV Rheinland certification is not just a technological breakthrough, but also a milestone in fulfilling the commitment of providing high-standard energy storage solutions for the world. In the future, WINDEY INNOVOLTS will quicken its pace to cooperate with overseas energy tycoons, promote the implementation of clean energy technologies, and help achieve the zero-carbon goal."
By virtue of the endorsement of this certification, WINDEY INNOVOLTS's energy storage system products will become more competitive in the European, North American, and Southeast Asian markets, which injects new momentum into the transformation of the global energy structure.
**[About WINDEY INNOVOLTS]**
As the core brand under WINDEY Energy Technology Group, WINDEY INNOVOLTS focuses on the R&D and innovation of global energy storage systems, and dedicates itself to providing global customers with safe, reliable, and intelligent energy storage solutions, in order to help achieve the “Carbon Neutrality” goal.
