An energy storage cabinet is a device capable of storing electrical energy, typically composed of battery packs, inverters, and control chips. It stores electrical energy and releases it for use when needed, usually to provide backup power and stabilize grid voltage.
Energy storage cabinets can smooth out fluctuations caused by the integration of non-connected renewable energy sources into the grid, maintaining grid stability. They can also suppress load fluctuations, playing a role in frequency and voltage regulation, and improving the power factor.