A storage battery control apparatus is provided with which a system capable of charging a storage battery using power from an electric power system and also charging the storage battery using power from a power generation system is inexpensively built. A storage battery control apparatus includes a switching control unit and a switch for connecting a CT to a current sensor connecting portion in a power generation system during a period during which a storage battery is charged using power from an electric power system, and for connecting a CT to the current sensor connecting portion during a period during which the storage battery is charged using power from the power generation system.