Four different optional system of air conditioning system are simulated. In response of World oil crisis, the limitation of energy availability occurs, a paradigm on development of heating ventilation and air conditioning system (HVAC) in cluster of high rise building is proposed to minimize in investment cost, installation and operation costs. It consumes about 44% of the total energy consumption of the building. Similar as other sectors, air conditioning system is also the main primary energy consumption. During the time from 6 PM to 10 PM the price of electricity is double compared to the price of electricity from the other time. Jakarta as metropolitan city of Indonesia has peak load of energy consumption in the evening.
