Kortrong's 130kW/261kWh immersion cooling energy storage system and 60kW/208kWh hybrid solar-storage system have been awarded CB and CE certificates by Bureau Veritas, a globally recognized testing and certification group. This milestone lays a solid foundation for rapidly responding to global market demands.
01 │ Global Passport for Immersion Cooling: World's First Certified Product through LCIE Testing
With the enforcement of the EU's new battery regulation (2023/1542) and North America's updated UL 9540A standard adding thermal runaway propagation requirements, major international markets are tightening functional and safety compliance demands for energy storage systems. The CB certification scheme, governed by the International Electrotechnical Commission (IEC), is widely accepted worldwide. It covers electrical safety, mechanical safety, fire resistance, environmental reliability, and more. Leveraging a “one test, multiple certifications” mechanism, it eliminates duplicate evaluations and enables efficient market access across numerous countries.
After months of rigorous testing by LCIE, both the 130kW/261kWh immersion cooling energy storage system and the 60kW/208kWh hybrid solar-storage system conformed to three international standards:
●CB (IEC 62619)
●CE (EN 62477, EN 61000)
Notably, the 130kW/261kWh system became the world's first immersion cooling energy storage product certified by LCIE.
02 │ At a Glance: Product Strengths Across Multiple Applications
Immersion cooling technology submerges battery cells in coolant, cutting off air contact and eliminating the two key elements of combustion—heat and oxygen. This design ensures inherent safety from the source, enables a battery cluster temperature difference of ≤2°C, and extends cycle life by 30%. 
130kW/261kWh Immersion Cooling Energy Storage System
●Recognized as a 2024 Guangdong High-Quality High-Tech Product
●Equipped with Kortrong's self-developed active gas fire suppression system
●Highly integrated, supports rapid on-site deployment, plug-and-play operation
●Delivers high efficiency and energy density
●Ideal for commercial/industrial energy storage, microgrids, and zero-carbon parks
60kW/208kWh Hybrid Solar-Storage System
●Integrates solar, storage, and flexible DC power design
●Provides backup power during grid outages or electricity shortages
●Suitable for extreme environments: high/low temperature, high altitude, high humidity
03 │ Global Market Access: Accelerated Expansion with Complete Certification
With these credentials, Kortrong is fully equipped to serve global markets and will swiftly respond to mainstream international demands while deepening its worldwide presence.The two CB-certified systems are already deployed in:
●Smart microgrids
●Remote area power supply
●Commercial and industrial energy storage
●Zero-carbon parks
They effectively contribute to energy savings, emission reduction, cost reduction, and efficiency gains enhancing the stability and sustainability of energy use. These systems will provide international markets, especially those with vulnerable grids, with a safe, reliable, and cost-effective green energy experience.
