Vehicle to grid in the energy communities

Distributed storage could solve problems due to electric vehicles widespread. If many e-vehicles are charged at the same time on the same network, this one not always support the energy request and, without a control logic, the increasing frequency of e-car charges could lead to a network overloading. Storage system located at the Consumer homes can both solve network overloading and reload the storage systems at Consumers homes during the hours absence. Energy stored during the day, in case of combination with RES (photovoltaic) when the system is more effective, can be "poured" into car batteries in evening, mitigating the so-called 'duck curves' effects, typical of evening hours because of the increasing of energy consumption. Distributed storage, appropriately controlled and in a nanogrid system, is an ideal solution for many e-vehicles users with no needs of fast charging during night. Finally, the bidirectional nature of streams (vehicle to grid), achievable through nanogrid, enables the implementation of an extended V2G storage system, leveraging the storage potential of the vehicle. This system could be applied in building, vehicle to building (V2B). Vehicle is charged when it is economically convenient or to balance RES overproduction. Conversely, energy stored can be reused during the high tariff time bands or to supply energy to the network. V2G could mitigate grid peaks with no need of additional power plants. SHs: Univ. of Calabria (UNICAL), of Marche, ENEA.