Renewable energies constitute one of the keys for the transition to a more sustainable World, while energy storage technologies such as RFBs can be used to regulate the timing between electricity production from renewable energies and consumption, especially when they are part of smart grids, i.e. electrical grids which have the capability to manage in real time and in the most efficient way the energy flow depending on the electricity production and consumption. and by avoiding the EV battery to fully discharge. The EV driver must collect as many gifts as possible while circulating on the roads of a virtual city and its peripheric areas. Those gifts appear randomly on the roads, one after the other, and their collection gives points to the EV driver. In contrast to our past EV serious games in VR and similarly to our past Smart Grid MR serious game, there is not limit in the number of gifts that can be collected in Smart Grid MR 2.0. After a configurable number of points the game level is automatically upgraded, which implies that more pirate trucks will appear and that the barriers randomly blocking the roads will appear more frequently. The EV can be recharged by the VR player by parking it for a few seconds in one of the 4 recharge stations available in the virtual city. These recharge stations are powered with the energy stored by the RFB which has the role of an energy backup system. The energy stored (ES) by the RFB is given by