ENERGY MANAGEMENT SYSTEM

The purpose of the present invention is to provide an energy management system that works both to reduce energy and to maintain amenity in each building. The energy management system (100) of the present invention is provided with an energy management apparatus (10) and a control apparatus (30, 30). The energy management apparatus is located superordinate to a plurality of buildings, and manages energy supplied to equipment devices provided to each building. The control apparatus is connected to the energy management apparatus, and controls the equipment devices in the buildings. The control apparatus has an operating status perceiving unit (36a, 236a, 336a, 436a) and a reducing capability presentation unit (36g, 236g, 336g, 436g). The operating status perceiving unit perceives the operating status of the equipment devices. The reducing capability presentation unit presents to the energy management apparatus a plurality of energy reducing capabilities for each condition, which are amounts of energy that can be reduced for the equipment devices, on the basis of the operating status. It is thereby possible to take into account both energy reducing and maintenance of amenity in the buildings.