They integrate lithium batteries, PCS, transformer, air conditioning system, and fire protection system within a single container, offering a comprehensive plug-and-play solution for large-scale power storage needs. . Polinovel utility scale energy storage battery system incorporates top-grade LiFePO4 battery cells with long life, good consistency and superior charging and discharging performance. What are the benefits of a Bess container energy storage system? It also includes. . These four sets of 500kW (2MW) containerized energy storage systems are a solution to an efficient distributed photovoltaic energy matrix. PCS cabin is equipped with ventilation fan for cooling. 40 foot Container can Installed 2MW/4.