Abstract: An energy management apparatus according to an embodiment is used in a management system including an information device management apparatus which has a first storage storing an information device table indicating a relationship between an information device identifier for identifying at least one information device and a zone identifier for each of zones and controls the information device based on the information device table and data received from the energy management apparatus. The energy management apparatus has an acquisitor, a data processor, a second storage and a communicator. The acquisitor acquires, regarding the zones, presence-absence information indicating a presence or absence of a person in each of the zones. The data processor generates the data based on the presence-absence information acquired by the acquisitor and the zone identifier.

Abstract: An energy management apparatus according to an embodiment is used in a management system having an information device management apparatus that has a first storage storing information device information regarding at least one information device and sends to the energy management apparatus first power consumption information regarding the power consumption by the information device. The energy management apparatus has a receiver, a first acquisitor, and a second storage. The receiver receives, regarding zones related to a building, a detection signal regarding detection of a person in each of the zones. The first acquisitor acquires second power consumption information regarding power consumed by a facility device in the zones. The second storage stores the first power consumption information and the second power consumption information in connection with the zones, based on the detection signal received by the receiver.

Abstract: An energy management apparatus according to an embodiment is used in a management system including an information device management apparatus which has a first storage storing an information device table indicating a relationship between an information device identifier for identifying at least one information device and a zone identifier for each of zones and controls the information device based on the information device table and data received from the energy management apparatus. The energy management apparatus has an acquisitor, a data processor, a second storage and a communicator. The acquisitor acquires, regarding the zones, presence-absence information indicating a presence or absence of a person in each of the zones. The data processor generates the data based on the presence-absence information acquired by the acquisitor and the zone identifier.

Abstract: An energy management apparatus according to an embodiment is used in a management system having an information device management apparatus that has a first storage storing information device information regarding at least one information device and sends to the energy management apparatus first power consumption information regarding the power consumption by the information device. The energy management apparatus has a receiver, a first acquisitor, and a second storage. The receiver receives, regarding zones related to a building, a detection signal regarding detection of a person in each of the zones. The first acquisitor acquires second power consumption information regarding power consumed by a facility device in the zones. The second storage stores the first power consumption information and the second power consumption information in connection with the zones, based on the detection signal received by the receiver.