The impact of EV´s fast charging stations on the MV distribution grids of the Milan metropolitan area

In the next 20 years the number of electric vehicles (EV) will significantly increase and will reach more than 40 million in EU. The energy required for charging EV, usually recovering in private parking places for many hours, will be mainly provided through smart charging boxes connected to the LV network. In all other cases, EVs will be charged in fast charging stations (FC) or battery swap stations connected to the MV network. Such charging stations require high power during the day, especially when the network could be overloaded, hence there is the need to model and analyze the impact on the grid. The paper describes the 2030 scenario for the metropolitan area of Milan, and explains how power demand due to Fast Charging stations for electric mobility can represent an issue for the electric grid, and how it is possible to face such problems using storages and power electronics.