Abstract: A server includes a communication unit (acquisition unit) that acquires temperature information about a battery of an electrified vehicle, and a processor. The processor predicts the temperature transition of the battery in a meeting period during which an electric power supply-demand adjustment request from an electric power grid (electric power network) can be met, based on at least the temperature information. The processor estimates an hour zone in the meeting period during which the temperature of the battery is in the range of a non-restrictive temperature zone (a temperature zone in which transmitted electric power is restricted), based on the temperature transition. The processor sets an hour zone during which the electrified vehicle executes electric power transmission in response to the electric power supply-demand adjustment request, based on the estimated hour zone.

Abstract: A non-contact power supply device comprises: a primary winding (101); and a secondary winding (201) to which an electric power is supplied from an alternating current power supply via the primary winding, wherein an impedance characteristic of Z1 with respect to a frequency is such that a minimal value is provided in the proximity of a frequency of a fundamental wave component of the alternating current power supply and another impedance characteristic of Z2 with respect to the frequency is such that the frequency of the fundamental wave component is provided between the frequency which is nearest to the frequency of the fundamental wave component and at which a maximal value is provided and the frequency which is nearest to the frequency of the fundamental wave component and at which the minimal value is provided.

Abstract: A non-contact power supply device comprises: a primary winding (101); and a secondary winding (201) to which an electric power is supplied from an alternating current power supply via the primary winding, wherein an impedance characteristic of Z1 with respect to a frequency is such that a minimal value is provided in the proximity of a frequency of a fundamental wave component of the alternating current power supply and another impedance characteristic of Z2 with respect to the frequency is such that the frequency of the fundamental wave component is provided between the frequency which is nearest to the frequency of the fundamental wave component and at which a maximal value is provided and the frequency which is nearest to the frequency of the fundamental wave component and at which the minimal value is provided.