Energy Efficiency

Gas District Cooling (GDC) is used to supply chilled water for air conditioning to all main buildings in Putrajaya to achieve energy efficiency. Unlike the conventional air-conditioning system, GDC is environmental-friendly as it utilise clean natural gas as the primary energy source. GDC operates by using the R-134A ozone friendly refrigerant replacing the ozone depleting chlorofluorocarbon (CFC).

Its co-generation system, the combination of steam turbine driven chillers and electric chillers creates higher energy efficiency in its production process compared to combined cycle power plant. GDC also reduces air and noise pollution, and the system uses energy more efficiently because of a single system applies over a wide area and to various buildings which levels off the energy and saves fuelwith its Chilled Water Thermal Energy Storage installation.

There are 5 GDC plants with each plant providing around 15,000 to 33,000 RT (Refrigeration Tonne) of chilled water to the Government and Commercial Offices in Putrajaya.