This article introduces GSL ENERGY's dual-cabinet GSL-BESS50kVA high-voltage hybrid integrated energy storage system, which covers a capacity range of 200kWh to 315kWh and features modular design, quick installation, and safe and efficient operation. The article provides an in-depth analysis of its system integration advantages, multi-level safety protection mechanisms, and parallel expansion capabilities, demonstrating its broad application potential and value in the commercial and industrial energy storage field.