Furthermore, when there is an application of cooling thermal storage, it is important to consider about the benefit of the condenser waste heat recovery. In fact, considering the sustainability of national electric power availability which predominantly depends on fossil fuel as primary energy resources and the price of energy that is very dynamic and tends to increase every year which is not agree with this assumptions used in this calculation, it is expected that within 10 years system operation, option 3 could be better than option 2. As the result of the simulation, in point view of investment, operational, and life cycle cost as the main criteria for the choice of the proposed system design, option 2 is the best choice. The investment, operation, and life cycle cost for each option is compared in analyses efficiency of the systems. Those systems are centralized air conditioning system for individual buildings, centralized air conditioning system without TES (thermal energy storage) for cluster of buildings, centralized air conditioning system with TES for a cluster of buildings, and hybrid centralized air conditioning system with TES for a cluster of buildings. In this paper, four different optional systems of air conditioning are simulated. In response to the World oil crisis and to the limitation of energy availability, a paradigm on development of HVAC in cluster of high rise buildings is proposed to minimize investment, operation, and life cycle costs. Similar as other sectors, air conditioning system is the main primary energy consumption.It consumes about 60% of the total energy demand of the building.
During the time from 6 PM to 10 PM the price of electricity is double compared to other time. Jakarta as a metropolitan city of Indonesia has its peak load of energy consumption in the evenings.
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