Industrial and commercial energy storage systems use lithium batteries as energy storage devices to complete the balance and optimization of power supply and power demand among the grid, batteries, and loads through local and remote EMS management systems. And can easily connect to new energy equipment such as photovoltaics. It brings application value in terms of peak and valley power consumption, distribution network capacity expansion, and power safety, and at the same time, it serves as a core node to realize smart grid access.

With the development of the economy, the load of the distribution network has increased, and problems such as low voltage at the terminal and heavy overload in the distribution area have become increasingly obvious. At the same time, as many distributed new energy generation devices are connected to the distribution network, the power supply structure has changed significantly. Power supply fluctuations and regional power supply quality are facing severe challenges. The distribution area energy storage system can participate in power demand response according to the power grid operation plan, play a role in absorbing new energy, peak shaving and valley filling, improve the distribution area power supply capacity, and ensure residents' reliable power consumption.

The characteristic of electric vehicle charging is that the charging power is large and has great impact on the power grid, but the total power consumption is not large. As the number of electric vehicles and their charging power increases, charging stations have requirement to increase the number and power of charging piles, which requires increasing power distribution capacity. The traditional way is to add distribution transformers, but the cost is high, and the actual utilization rate of the transformers is low. The best way is to configure an energy storage system to achieve dynamic capacity increase.

Some remote and unconnected areas need to build their own power grids due to sparse population and distance from the main network. Using new energy to generate electricity and using microgrid technology is a better solution. Microgrids need to use solar energy, wind energy, water energy, oil turbines and other forms of power generation according to local environmental conditions and use energy storage systems to smooth power generation and electricity consumption or improve the stability of the power supply network by complementing new energy power generation with city power.