For this criteria, the focus is on the energy consumption of an air-conditioning system. Generally, an air conditioning system contributes to high usage of electricity in a building.
This can be seen in either commercial or residential buildings. For a commercial building with an air-conditioning system that consists of chillers, pumps, cooling towers and air distribution systems, improvements are needed to increase the efficiency of the overall system. This can be done by fully utilizing the system through the optimization of the equipment’s usage via proper installation of equipment of higher efficiency. For a residential building, choosing the correct air conditioners that comply with the Energy Commission of Malaysia or Singapore Energy Labeling Scheme is recommended. An energy efficient air-conditioning system will effectively save a lot of cost in the long run while not compromising the main objective of providing better indoor comfort for the residents in the building.