In order to meet the needs of the rapid development of electric vehicles, the number of charging piles will increase, and the demand for electricity will become more and more significant, the future stability of the power grid system will be a challenge; but on the other hand, along with the development of charging piles (stations) introduced many new technologies (such as energy storage, solar charging stations, intelligent charging management, two-way charging technology, etc. ...), there will be an opportunity to help improve the overall flexibility of the power grid. The flexibility of the overall power grid will also be improved.