What is distributed energy storage?

　　Distributed energy storage refers to the storage of energy through photovoltaic, wind power, or electricity from the grid in green energy. The stored energy can be electricity, heat, cold, potential energy, etc. The access location of distributed energy storage systems is flexible, mainly by connecting the medium and low voltage distribution network, microgrid, and excess electricity from users to the power supply network.

　　The load of the power grid varies with the daily electricity consumption, with peaks and valleys. The continuous increase in wind and solar power generation further intensifies the pressure of peak shaving. Energy storage devices are used to discharge during peak load periods and charge from the grid during low load periods, reducing peak load demand and improving load characteristics to participate in system peak shaving.

　　With the expansion of renewable energy, it is increasingly necessary to transform the constantly changing and intermittent power output into a more stable and reliable power supply. Distributed energy storage systems absorb power peaks by adjusting loads and injecting electricity when power supply suddenly decreases. Local energy storage can alleviate power fluctuations caused by renewable energy production and output. Distributed energy storage systems have flexible access locations and are currently mostly used in medium and low voltage distribution networks, distributed generation and microgrids, and user side applications.

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