Abstract: A server manages demand and supply of electric power between a power network and at least one vehicle which is electrically connected to the power network and available as a power adjustment resource of the power network. The at least one vehicle includes a FCEV. The server includes: an acquisition unit that obtains an operation plan of the FCEV and information on a remaining hydrogen level that is available for the FCEV; and a determination unit that determines whether the FCEV is available for a DR request, based on the operation plan and the remaining hydrogen level information.

Abstract: A power system includes a first power device, a second power device, a third power device, and a power control device. The power control device is configured to control power control of each of the first power device, the second power device, and the third power device. The power control device is configured to perform gradual change switching control when the power control device switches a target of the power control from the first power device to the second power device. The power control device is configured to perform instant switching control when the power control device switches the target of the power control from at least one of the first power device and the second power device to the third power device.

Abstract: A server that manages energy of a power grid by using a plurality of energy storage resources includes a loss obtaining unit and a selector. The loss obtaining unit obtains for each of the plurality of energy storage resources, energy loss including retention loss and input and output loss, the energy loss being caused in storing energy in each energy storage resource. When surplus electric power occurs in the power grid, the selector selects at least one energy storage resource for storing surplus electric power from among the plurality of energy storage resources based on the energy loss caused in storing surplus electric power.

Abstract: A computer manages a plurality of resources operable as a balancing power for an external power supply. Each of the resources includes a power storage device chargeable with electric power from the external power supply. The computer executes resource selection for selecting a resource to be operated as the balancing power from among the resources in response to a charging request for the balancing power. The computer determines chargeable periods of the resources prior to the resource selection. The computer selects a resource having a short chargeable period with priority in the resource selection in response to a first charging request, and selects a resource having a long chargeable period with priority in the resource selection in response to a second charging request. A balancing period requested in the second charging request is longer than a balancing period requested in the first charging request.

Abstract: A retention amount management system includes a detector that detects an amount of retention and a server that adjusts an amount of production of hydrogen in a production facility such that the amount of retention of hydrogen retained in a retention facility for a predetermined period attains to a target amount of retention. The server sets the target amount of retention such that an amount of hydrogen ? corresponding to an amount of surplus electric power during a preparation period during which electric power generated per prescribed period by using renewable energy is higher than a threshold value is larger than an amount of hydrogen ? corresponding to the amount of surplus electric power during an ordinary period.

Abstract: A controller of an EMS server determines whether it has received a supply and demand request from a power transmission and distribution utility server. When having received the supply and demand request, the controller determines whether the supply and demand request is for requesting an increase in power demand or for requesting an increase in power demand. The controller decomposes the supply and demand request into first to third requests. The controller creates a negawatt DR execution plan or a posiwatt DR execution plan based on a determination result of S3. The controller allocates power adjustment resources to the first to third requests in consideration of responsiveness of each of the power adjustment resources. The controller transmits the first to third request signals to target power adjustment resources in accordance with the execution plan.

Abstract: A CEMS server obtains meteorological information and hydrogen station information. The CEMS server predicts a power demand of a microgrid after a designated period. When the power demand of the microgrid after the designated period exceeds contract power and when an amount of electric power to be reduced exceeds a prescribed value, the CEMS server generates a hydrogen addition notification and transmits the generated hydrogen addition notification to an FCEV and/or a communication terminal. The amount of electric power to be reduced is a difference between the contract power and the power demand.

Abstract: A server that manages energy of a power grid by using a plurality of energy storage resources includes a loss obtaining unit and a selector. The loss obtaining unit obtains for each of the plurality of energy storage resources, energy loss including retention loss and input and output loss, the energy loss being caused in storing energy in each energy storage resource. When surplus electric power occurs in the power grid, the selector selects at least one energy storage resource for storing surplus electric power from among the plurality of energy storage resources based on the energy loss caused in storing surplus electric power.

Abstract: A retention amount management system includes a detector that detects an amount of retention and a server that adjusts an amount of production of hydrogen in a production facility such that the amount of retention of hydrogen retained in the retention facility for a predetermined period attains to a target amount of retention. The server sets the target amount of retention such that a first amount of hydrogen a corresponding to an amount of surplus electric power during a stable period during which electric power generated per prescribed period by using renewable energy is higher than a threshold value is larger than a second amount of hydrogen ? corresponding to the amount of surplus electric power during an ordinary period.

Abstract: An electrically powered vehicle includes a target battery that is externally chargeable and externally power feedable, a sensor that detects a temperature of the target battery, and a controller that performs charging control, discharging control, and temperature increase control of the target battery. The temperature increase control is control for increasing a temperature of the target battery by selecting any of external electric power and battery power and generating heat with the selected electric power. The controller receives a leveling signal that requests for power leveling. When the temperature of the target battery is lower than a first temperature during external power feed requested by the leveling signal, the controller performs the temperature increase control by using battery power before the external power feed requested by the leveling signal.

Abstract: A notification controller controls a notification apparatus that gives a notification to a user of a mobile body. The notification controller controls the notification apparatus to carry out at least one of first notification to control the notification apparatus to give a notification about start of external charging, second notification to control the notification apparatus to give a notification about end of external charging, third notification to control the notification apparatus to give a notification about start of external power feed, and fourth notification to control the notification apparatus to give a notification about end of external power feed. The notification controller can carry out suppression control to restrict a frequency of notification by the notification apparatus by suppressing notification by the notification apparatus.

Abstract: A server manages demand and supply of electric power between a power network and at least one vehicle which is electrically connected to the power network and available as a power adjustment resource of the power network. The at least one vehicle includes a FCEV. The server includes: an acquisition unit that obtains an operation plan of the FCEV and information on a remaining hydrogen level that is available for the FCEV; and a determination unit that determines whether the FCEV is available for a DR request, based on the operation plan and the remaining hydrogen level information.

Abstract: A notification controller controls a notification apparatus that gives a notification to a user of a mobile body. The notification controller controls the notification apparatus to carry out at least one of first notification to control the notification apparatus to give a notification about start of external charging, second notification to control the notification apparatus to give a notification about end of external charging, third notification to control the notification apparatus to give a notification about start of external power feed, and fourth notification to control the notification apparatus to give a notification about end of external power feed. The notification controller can carry out suppression control to restrict a frequency of notification by the notification apparatus by suppressing notification by the notification apparatus.

Abstract: An electrically powered vehicle includes a target battery that is externally chargeable and externally power feedable, a sensor that detects a temperature of the target battery, and a controller that performs charging control, discharging control, and temperature increase control of the target battery. The temperature increase control is control for increasing a temperature of the target battery by selecting any of external electric power and battery power and generating heat with the selected electric power. The controller receives a leveling signal that requests for power leveling. When the temperature of the target battery is lower than a first temperature during external power feed requested by the leveling signal, the controller performs the temperature increase control by using battery power before the external power feed requested by the leveling signal.