Abstract: A power arrangement comprises an energy management arrangement, a demand interface circuit, a power distribution arrangement, a vehicle power terminal and a building power terminal. The demand interface circuit acquires at least one demand data of a group comprising: an energy need that is required of an electric vehicle, a discharge energy that is available by the electric vehicle for discharging, a charging time period that is available for charging the electric vehicle and a discharging time period that is available for discharging the electric vehicle. The energy management arrangement controls the power distribution arrangement such that vehicle electrical power is provided at the vehicle power terminal as a function of the demand data and building electrical power is provided at the building power terminal.