The core of stacked energy storage system design lies in modularity and integrated packaging. Adopting an "All-in-One" philosophy, these systems highly integrate components-such as battery packs, Battery Management Systems (BMS), Energy Management Systems (EMS), power conversion units (DC/DC or PCS), thermal management systems, and fire suppression systems-into a standard cabinet, creating a standardized, plug-and-play module. Physically, the system stacks multiple modules vertically, significantly reducing the required footprint. To further enhance deployment and transport efficiency, some solutions optimize traditional container dimensions-for instance, using 10-foot standard units instead of 20-foot containers.
The design emphasizes high flexibility and scalability. Modules connect electrically and for communication via standardized interfaces, supporting rapid installation, replacement, and automatic networking. The system allows for the parallel connection of multiple cabinets, enabling flexible capacity adjustment based on power demands and facilitating seamless upgrades; this helps control initial investment costs while accommodating future changes in requirements. This "Lego-like" flexibility enables the system to adapt to diverse application scenarios, ranging from residential and C&I (commercial and industrial) settings to large-scale energy storage power stations.
At the system architecture level, modular design follows two approaches: first, system-level "Lego-style" modularity, where functional modules (such as DC/DC, DC/AC, and STS) can operate independently or be flexibly combined; and second, supply-chain-level "building-block" modularity, where systems are constructed using standardized components. Furthermore, the design prioritizes environmental adaptability, ensuring long-term, stable operation in harsh conditions-such as corrosive environments-through high protection ratings like IP66 and C5-M.