Sungrow Powerstack ST255CS 125kW/257kWh

Note: The price includes delivery within Sweden and commissioning. EMS300CP needs to be purchased separately.

PowerStack 255CS is the next-generation liquid-cooling commercial and industrial (C&I) energy storage system.

High Efficiency & Extended Lifespan
Equipped with 314Ah battery cells, the PowerStack 255CS delivers a 257kWh capacity (2-hour system) or 514kWh capacity (4-hour system) for a single container. Following Sungrow’s renowned AC Block product design, the system ensures a round-trip efficiency (RTE) of more than 90% and a product design lifetime of up to 20 years.

Besides, incorporating advanced liquid-cooling technology, the AI-controlled heat balance technology analyzes the cell temperature and the operating conditions data, intelligently adjusting the cooling power to reduce auxiliary power consumption by 33% - maximizing both performance and economic benefits.

Unparalleled Safety Standards
The PowerStack 255CS meets top-tier global safety certifications, including UL9540 and NFPA855/69/68/14, ensuring the highest standards of protection. It features advanced cell anomaly detection and multi-stage overcurrent protection to prevent thermal runaway. The system integrates early fire detection with multiple suppression measures, minimizing risks at every stage. With a comprehensive safety design incorporating cabinet-level, rack-level, and pack-level fuse protection, the PowerStack 255CS delivers robust fire prevention and enhanced operational security.

Unmatched Flexibility & Convenience
With a fully integrated Energy Management System (EMS), Power Conversion System (PCS), and Battery Management System (BMS), PowerStack 255CS streamlines energy storage operations while reducing installation complexity. The system supports multiple layout configurations, offering adaptable deployment for diverse site requirements. Additionally, pre-installed and pre-commissioned components enable rapid grid connection, enhancing overall efficiency. Its’ innovative design allows for scalable parallel applications, supporting up to 25 units and projects between 257kWh and 6.4MWh, making it an ideal solution for a wide range of energy storage needs.