Electric vehicles can be considered as important amounts of energy stored in batteries. The possibility of taking advantage of such energy to other ends out of transport is a great opportunity for the transition from combustion engine's vehicles to electric vehicles. To do this, it is necessary to use bidirectional chargers, so the energy can ow in both directions: from the vehicle to the electrical system it is connected to and vice versa. This project studies an optimization tool to assess the impact of exploiting the energy in electrical vehicles in buildings through bidirectional chargers and its application to two models representing two di erent kind of buildings: a medium o ce and a data center. Afterwards, business models around this idea are discussed.