In this context, the aim is to reduce the A/C demand in 90 kW (max), especially during the summer peak hours. This action was based on recent guidance and decisions, according to which, customers of high energy consumption in Public Power Corporation (PPC) that achieve low consumption during the peak hours (11:00–14:00) in the summer months, are rewarded with a discount in their electricity bill [63]. To this end, the proposed software tool incorporates A/Cs’ controllable and programmable shut-off, which is short so as not being perceived by the energy end-user and not affecting the effectiveness and proper operation of A/C devices.