SUPPORT SERVER, DISASTER SUPPORT SYSTEM, AND STORAGE MEDIUM

A support server includes a controlling portion configured to execute the followings: acquiring respective pieces of vehicle information on a plurality of vehicles present in a power outage area; specifying a power supply vehicle by which power supply is performable, from among the vehicles based on the respective pieces of vehicle information on the vehicles; and outputting, to the power supply vehicle, power supply information indicating that power supply is performable by the power supply vehicle.