These self-contained units combine robust solar panels, high-capacity batteries, and essential communication equipment into rapidly deployable platforms that transform emergency. The Energy Management System (EMS) is the "brain" of the energy storage. This article will detail how to design an energy storage cabinet, especially considering the integration of core components such as PCS, EMS, lithium batteries, BMS, STS, PCC and MPPT. It uses intelligent control strategies to maximize annual savings and economical operation while Go big with our modular design for easy additional solar power capacity.