Recently, the TWS PowerCore liquid-cooling container energy storage system successfully passed the audits of EU standards IEC 62619, IEC 63056, and CE LVD conducted by TÜV Rheinland. At the 2025 SNEC, Mr. Dong Bin, General Manager of Electrical & Electronics of TÜV Rheinland Greater China, presented the certificates to Mr. Qiang Lin, Sales Director, and Mr. Yao Cheng, Commercial & Industrial Channel Director of TWS Anhui.

Rigorous Standards Ensure Safety and Reliability Across the Lifecycle

 IEC 62619: As the core standard for energy storage battery safety, IEC 62619 establishes a comprehensive safety protection system throughout the battery's entire lifecycle. From the R&D phase, it imposes strict requirements on materials and structural design to ensure excellent thermal stability and mechanical strength. During manufacturing, it regulates processes and quality control to minimize risks from defects. For usage and transportation, it provides detailed safety protocols and performance metrics. Crucially, it defines safety thresholds for extreme temperatures, mechanical shock, overcharge/over-discharge, and other complex scenarios through rigorous testing, preventing fire or explosion hazards and fortifying the safety of the containerized ESS's core power source.

 IEC 63056: Based on IEC 62619, this key international standard for ESS safety introduces stricter and more detailed requirements targeting core system risks. It mandates enhanced protection features like over-discharge safeguards and abnormal high-temperature tests, requiring high-precision state-of-charge monitoring and intelligent cutoff mechanisms. This significantly boosts system stability under complex operating conditions.

 CE LVD (Low Voltage Directive): As the fundamental European safety standard for electrical equipment, CE LVD strictly controls electrical safety performance during both normal operation and fault conditions. It demands compliance with stringent standards for electrical insulation, grounding protection, creepage, and clearance distances. Through comprehensive evaluation and testing of design, materials, and electrical parameters, it ensures safe and reliable operation at rated voltages, effectively preventing electric shock hazards and enhancing the overall reliability of the containerized ESS design and operation.

PowerCore ESS Container: Excellence in Safety, Flexibility, and Economy

Since its launch in 2025, the TWS PowerCore Container ESS system has garnered widespread acclaim for its exceptional safety, outstanding flexibility, and significant cost-effectiveness. Utilizing high-energy-density, long-lifecycle 315Ah LFP cells, PowerCore reduces the levelized cost of electricity by over 40%. The 20-foot container offers a 5MWh capacity. Its side-by-side deployment optimizes site layout, while its modular design allows for on-demand capacity and configuration adaptation. Its flexible system topology suits diverse energy storage scenarios, including utility-scale plants, microgrids, distributed energy systems, and renewable energy integration. Equipped with a triple-layer fire safety system, PowerCore excels in full-process fire prevention and control. This includes early precise detection, targeted fire suppressant spraying, rapid fire suppression, and sustained reignition prevention. At the same time, an integrated big-data intelligent fire monitoring system provides real-time panoramic surveillance and precise fire risk warnings, enabling proactive hazard identification and efficient coordination with fire suppression systems for timely response.

With its outstanding safety performance and intelligent management capabilities, TWS PowerCore successfully passed TÜV Rheinland's comprehensive audits and high-precision testing, securing the prestigious European certifications IEC 62619, IEC 63056, and CE LVD. This achievement lays a solid foundation for the product's entry into the EU market. This not only signifies full compliance with Europe's stringent technical specifications and safety standards but also showcases TWS's innovative capabilities in energy storage technology and its ultimate commitment to user safety. Moving forward, TWS Technology will leverage this milestone to accelerate its European market strategy. TWS Technology will continue to increase R&D investment and technological innovation, expand its product portfolio, optimize performance, enhance localized service networks, and improve service quality. Guided by higher safety standards and advanced technology, TWS Technology is committed to providing global customers with safe, efficient, and intelligent energy storage solutions, contributing to the thriving development of the green energy industry in Europe and worldwide.