Energy density up 25%, site footprint down 20%

CRRC Zhuzhou Institute will debut its 6.X Liquid-Cooled Energy Storage System to the European market at The smarter E Europe 2026, held June 23-25 at Messe München, where the company will exhibit at Booths B2.540 and B2.640 in Hall B2. The launch is backed by the company’s 200 MWh Bohot BESS project in Bulgaria, which reached full grid connection in April 2026.

As of May 2026, CRRC Zhuzhou Institute’s energy-storage business spanned more than 25 countries and regions. At the show, the company will focus on the technical upgrades in its latest storage products and on its delivery record across benchmark European projects.

New product debut: The 6.X Liquid-Cooled Energy Storage System delivers enhanced system efficiency

Europe’s accelerating storage deployment is placing new pressure on space, efficiency and operating costs – constraints that shaped the design of the 6.X system. The platform delivers three key technical advances:

Enhanced Space Utilization: Compared with the previous generation, energy density increases by 25% and overall site footprint is reduced by more than 20%, directly addressing the land constraints and stringent planning approval processes that developers face across European markets.

Optimized Thermal Performance: A top-discharge heat-dissipation design, combined with temperature-adaptive control, cuts thermal-management energy consumption by more than 10%, reducing auxiliary power draw and improving overall system efficiency.

Full-Scenario Application Coverage: The integrated solution supports power-side (utility generation), grid-side and commercial and industrial (C&I) applications, enabling asset owners to maximize returns on investment across diverse deployment contexts.

Safety validation at scale

CRRC Zhuzhou Institute recently published results detailing its approach to safety, drawn from large-scale fire testing and six-tier extreme-safety validation conducted under UL 9540A:2026 and NFPA 855:2026, two internationally recognized safety standards for battery storage systems.

Validated delivery: The 200 MWh Bohot BESS project in Bulgaria

On April 3, 2026, the Bohot project – built with core equipment supplied by CRRC Zhuzhou Institute – reached full-capacity grid connection, meeting Europe’s stringent interconnection requirements. This compliant delivery has become a key competitive advantage as the company expands across European markets.

The project uses a highly modular architecture of DC battery cabins, integrated AC cabins and power-conversion-system (PCS) units, paired with a 33 kV grid-interconnection system. Now operating stably, it has earned recognition from local partners and regulatory authorities and helps lay the groundwork for the company’s deeper engagement across European markets.

Building beyond the grid

CRRC Zhuzhou Institute also emphasizes its contribution to the markets where it operates, prioritizing local hiring, technical-skills training and local procurement to strengthen domestic supply chains. Across all project lifecycles, the company applies ecological-protection measures and environmental-impact assessments, with programs covering energy efficiency, carbon reduction and biodiversity protection. Its adherence to host-country regulations and international standards has helped build trust with governments and regulators worldwide.

Also on display: “Chixiao” 460 kW PV inverter — power up 28%, first use of SiC devices

CRRC Zhuzhou Institute will also showcase its “Chixiao” 460 kW PV inverter. Inheriting high-speed-rail-grade design standards, the inverter raises rated power to 460 kW (506 kW maximum) and improves power density by 28% compared with the previous generation. It also adopts a new generation of silicon-carbide (SiC) devices for the first time, helping lower system costs for large-scale ground-mounted power plants.

Visitors are invited to Booths B2.540 and B2.640 in Hall B2 to explore new opportunities in Europe’s clean-energy market.