A power reception control method for controlling a power reception control device of a power storage element (EVM), the method comprising repeating a processing cycle to control element-receiving electric power (Pt) received by the power storage element (EVM) included in a load group in an electric power system for supplying electric energy to the load group including plural power storage elements (EVM) via an electric power supply base point , the processing cycle comprising: acquiring information indicating differential electric power (ΔP) obtained by subtracting a current value of total transmitted electric power (Pall_now) having been supplied to the entire load group via the electric power supply base point from a maximum value of the total transmitted electric power (Pall_max) that is an available amount to be supplied to the entire load group via the electric power supply base point ; calculating a degree of priority (β) of the power storage element (EVM) indicating a level of priority regarding charging that the power storage element (EVM) has over the other power storage elements (EVM) in accordance with a numerical value, wherein the numerical value is a remaining time period during which the power storage element (EVM) can be charged, and the degree of priority (β) is higher as the remaining time period is shorter; multiplying the differential electric power (ΔP) indicated in the acquired information by the degree of priority (β) to calculate element differential electric power (βΔP) of the power storage element (EVM); adding the element differential electric power (βΔP) to the element-receiving electric power (Pt) in a previous processing cycle to update the element-receiving electric power (Pt); and controlling a power reception device of power storage element (EVM) so as to receive the element-receiving electric power (Pt) after being updated. acquiring information indicating differential electric power (ΔP) obtained by subtracting a current value of total transmitted electric power (Pall_now) having been supplied to the entire load group via the electric power supply base point from a maximum value of the total transmitted electric power (Pall_max) that is an available amount to be supplied to the entire load group via the electric power supply base point ; calculating a degree of priority (β) of the power storage element (EVM) indicating a level of priority regarding charging that the power storage element (EVM) has over the other power storage elements (EVM) in accordance with a numerical value, wherein the numerical value is a remaining time period during which the power storage element (EVM) can be charged, and the degree of priority (β) is higher as the remaining time period is shorter; multiplying the differential electric power (ΔP) indicated in the acquired information by the degree of priority (β) to calculate element differential electric power (βΔP) of the power storage element (EVM); adding the element differential electric power (βΔP) to the element-receiving electric power (Pt) in a previous processing cycle to update the element-receiving electric power (Pt); and controlling a power reception device of power storage element (EVM) so as to receive the element-receiving electric power (Pt) after being updated. <EOS>