In generation-side energy storage power stations, the energy storage system converts the DC power stored in the batteries into AC power via PCS, which is then connected to the power station's main bus or directly to the grid via the high-voltage switchgear. The core functions of high-voltage. . at is required for the operation of a substation. It ear can be standalone NEMA 1, or outdoor NEMA 3R. require adequa inable equipment and services tored energy management in high-voltage cabinets. These discrete setups “work,” but they are hard to modify, lack full protection visibility, and depend heavily on individual experience.