| 摘要 |
<p>In a store, a plurality of electric apparatuses including an air conditioner, a lighting apparatus, a water heater and a refrigeration unit are provided and connected to a single main power supply. An electric energy control system includes an electric energy detection part, an electric energy supervising part, an air conditioner derivation part and an air conditioner control part. The electric energy detection part detects the total electric energy consumption of the plurality of electric apparatuses. The electric energy supervising part outputs a demand signal when the total electric energy consumption detected by the electric energy detection part exceeds a set amount of electric energy. When the demand signal is output, the air conditioner control part employs as a default value A the electric current value of the air conditioner at the start of output of the demand signal, which has been derived by the air conditioner derivation part, and controls the air conditioner so that the electric current of the air conditioner reaches a target value TA reduced from the default value by a set amount of reduction Da1 determined based on the default value.</p> |
