Server

A server configured to notify a user of a vehicle that carries out external charging for charging a vehicle-mounted power storage with external electric power supplied from an electric power facility outside the vehicle, the vehicle being configured such that a removable charging apparatus can be attached to the vehicle, a method of the external charging including a first charging method and a second charging method different from the first charging method, the first charging method being the method of external charging carried out while the charging apparatus is not attached to the vehicle, the second charging method being the method of external charging carried out by activation of the charging apparatus while the charging apparatus is attached to the vehicle, the server comprising:

• a processing apparatus;
• and
• a storage where tendency information representing a tendency of the external charging is stored, wherein
• the processing apparatus performs notification processing for notifying the user of recommendation for attachment or removal of the charging apparatus in accordance with the tendency information, wherein
• the external electric power is external AC power as AC power supplied from the electric power facility to the vehicle,
• the vehicle includes a first AC-DC conversion device for carrying out the external charging with the external AC power,
• the charging apparatus is a second AC-DC conversion device different from the first AC-DC conversion device,
• the first charging method includes a method of charging the vehicle-mounted power storage by activation of the first AC-DC conversion device when the external AC power is first electric power, and
• the second charging method includes a method of charging the vehicle-mounted power storage by activation of both of the first AC-DC conversion device and the second AC-DC conversion device when the external AC power is second electric power greater than the first electric power, wherein
• the tendency information includes information representing a number of prescribed AC charging facilities within a predetermined range including a base of living of the user,
• the prescribed AC charging facilities are each the electric power facility configured to supply the external AC power at the second electric power to the vehicle, and
• the processing apparatus
• performs the notification processing for more likely recommending attachment of the second AC-DC conversion device as the number of prescribed AC charging facilities is larger, and
• performs the notification processing for more likely recommending removal of the second AC-DC conversion device as the number of prescribed AC charging facilities is smaller.