| CPC B60L 53/62 (2019.02) [H02J 3/381 (2013.01); B60L 2240/80 (2013.01)] | 4 Claims |
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1. An electric power system comprising:
a vehicle on which a power storage device is mounted;
a charging and discharging system that supplies and receives electric power between the vehicle and a facility external to the vehicle;
a photovoltaic power generation device that supplies electric power generated using sunlight to the charging and discharging system;
a notification device that notifies a user of predetermined information;
and a controller that notifies inquiry information using the notification device when a first condition and a third condition are satisfied, the inquiry information inquiring whether stop of the charging and discharging system is allowed, wherein
the first condition includes a condition that magnitude of the electric power supplied and received between the power storage device and the facility is smaller than a threshold,
a second condition includes a condition that a present time is a time within a time period in which an amount of electric power generated by the photovoltaic power generation device is smaller than a threshold,
and the third condition includes a condition that (i) the present time is a time within a time period in which an electricity rate lower than an electricity rate of any other time period of a day is set, and (ii) an amount of electric power stored in the power storage device is within a prescribed range corresponding to a fully charged state.
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