System, method, and computer readable storage medium

A method, comprising:

• acquiring information representing deterioration levels and states of charge of a plurality of batteries included in a plurality of vehicles;
• managing the plurality of vehicles by categorization into a plurality of groups based on combinations of the deterioration levels and the states of charge;
• selecting, based on electric power supply or demand information in an electric power grid, a vehicle in which a battery is to be used for an electric power delivery to or from the electric power grid from among vehicles categorized into a particular group of the plurality of groups;
• acquiring reservation information for reserving use of a vehicle from among the plurality of vehicles, wherein the reservation information comprises information representing whether to use a battery of the vehicle for either of (i) the electric power delivery to or from the electric power grid or (ii) an operation of the vehicle, and
• selecting, based on the reservation information, the vehicle in which the battery is to be used for the electric power delivery to or from the electric power grid from among vehicles categorized into a first group of the plurality of groups, and the vehicle in which the battery is to be used for the operation of the vehicle from among vehicles categorized into a second group of the plurality of groups.

A non-transitory computer readable storage medium having stored therein a program, the program causing a computer to function as

• a management module which manages a plurality of vehicles by categorization into a plurality of groups based on combinations of deterioration levels and states of charge of a plurality of batteries included in the plurality of vehicles, and
• a selection module which selects, based on electric power supply or demand information in an electric power grid, a vehicle in which a battery is to be used for an electric power delivery to or from the electric power grid from among vehicles categorized into a particular group of the plurality of groups;
• an acquisition module which acquires reservation information for reserving use of a vehicle from among the plurality of vehicles, wherein the reservation information comprises information representing whether to use a battery of the vehicle for either of (i) the electric power delivery to or from the electric power grid or (ii) an operation of the vehicle, and
• the selection module selects, based on the reservation information, the vehicle in which the battery is to be used for the electric power delivery to or from the electric power grid from among vehicles categorized into a first group of the plurality of groups, and the vehicle in which the battery is to be used for the operation of the vehicle from among vehicles categorized into a second group of the plurality of groups.