a storage unit that stores first data related to power consumption for each of the plurality of heating devices and second data related to heating capacity for each of the plurality of heating devices included in the vehicle; and

a processor that executes acquiring an air conditioning request transmitted from a user terminal, wherein the air conditioning request includes designating a condition for ending an operation of the heating device,

wherein the processor calculates a time until each of the plurality of heating devices in which operations are specified by the air conditioning request satisfies the condition using the second data,

wherein the processor calculates a power consumption amount when each of the plurality of heating devices in which operations are specified by the air conditioning request is operated for the time using the first data,

wherein the processor determines whether a remaining battery amount of the vehicle after a total amount of the calculated power consumption amount is consumed is below a predetermined threshold value,

wherein the processor selects a heating device to be operated among the plurality of heating devices in which operations are specified by the air conditioning request when the processor determines that the remaining battery amount is below the predetermined threshold value,

wherein the processor selects the heating device to be operated based on the remaining battery amount of the vehicle and the calculated power consumption amount such that the remaining battery amount after the operation of the heating device is ended does not fall below the predetermined threshold value, and

wherein, after the processor selects the heating device to be operated, the processor starts a control of the operation of the heating device that was selected.