An electricity storage control device that is adapted to transmit a charging rate of at least one of electricity storage devices to a management device that manages electric power interchange between the electricity storage devices, the electricity storage control device comprising: a charge information acquisition unit configured to acquire the charging rate of the at least one electricity storage device as a first charging rate; a communication unit configured to transmit the first charging rate to the management device; wherein the management device refers to charge and discharge determining information defining a charging rate at which charge and discharge for electric power interchange are permitted and a charging rate at which the charge and discharge are prohibited, and allows electric power interchange between electricity storage devices having the charging rate at which the charge and discharge are permitted, an electricity storage device including an electricity storage unit, the charging rate showing a current amount of charge relative to the maximum charging capacity of the electricity storage unit, characterized in that the electricity storage control device further comprises: a charge and discharge determining information storage unit configured to store said charge and discharge determining information; and a control unit configured to receive the charge and discharge determining information from the management device and to store the received charge and discharge determining information in said charge and discharge determining information storage unit, and further configured to cause the communication unit to transmit, instead of the first charging rate, a second charging rate that the charge and discharge determining information defines as the charging rate at which the charge and discharge are prohibited, when (a) the electricity storage control device is operating in an operation mode that prohibits at least one of the charge for electric power interchange and the discharge for electric power interchange and (b) the charge and discharge determining information defines the first charging rate as the charging rate at which the charge and discharge are permitted. a charge information acquisition unit configured to acquire the charging rate of the at least one electricity storage device as a first charging rate; a communication unit configured to transmit the first charging rate to the management device; wherein the management device refers to charge and discharge determining information defining a charging rate at which charge and discharge for electric power interchange are permitted and a charging rate at which the charge and discharge are prohibited, and allows electric power interchange between electricity storage devices having the charging rate at which the charge and discharge are permitted, an electricity storage device including an electricity storage unit, the charging rate showing a current amount of charge relative to the maximum charging capacity of the electricity storage unit, characterized in that the electricity storage control device further comprises: a charge and discharge determining information storage unit configured to store said charge and discharge determining information; and a control unit configured to receive the charge and discharge determining information from the management device and to store the received charge and discharge determining information in said charge and discharge determining information storage unit, and further configured to cause the communication unit to transmit, instead of the first charging rate, a second charging rate that the charge and discharge determining information defines as the charging rate at which the charge and discharge are prohibited, when (a) the electricity storage control device is operating in an operation mode that prohibits at least one of the charge for electric power interchange and the discharge for electric power interchange and (b) the charge and discharge determining information defines the first charging rate as the charging rate at which the charge and discharge are permitted. a charge and discharge determining information storage unit configured to store said charge and discharge determining information; and a control unit configured to receive the charge and discharge determining information from the management device and to store the received charge and discharge determining information in said charge and discharge determining information storage unit, and further configured to cause the communication unit to transmit, instead of the first charging rate, a second charging rate that the charge and discharge determining information defines as the charging rate at which the charge and discharge are prohibited, when (a) the electricity storage control device is operating in an operation mode that prohibits at least one of the charge for electric power interchange and the discharge for electric power interchange and (b) the charge and discharge determining information defines the first charging rate as the charging rate at which the charge and discharge are permitted.