The District Cooling Centre (DCC-1 and DCC-2) is to meet the cooling demand of commercial development within KLCC namely Petronas Towers, The Suria, Maxis Tower, The Mandarin Oriental, Esso Tower and other future commercial and residential development with KLCC.

The co-generation centre was designed to accommodate the gas turbine generators and associated heat recovery boilers, standby gas fired boilers, steam turbine driven centrifugal chillers, cooling towers and other ancillary equipment.

The KLIA Cogeneration Plant has been planned to produce chilled water at 6℃ for KLIA facilities which comprise core and privatized facilities. The excess electricity generated from the cogeneration system will also be supplied to KLIA facilities.

In phase 1 (1997) and phase 2 (2012) the plant will have a total installed cooling capacity of 35,000RT. The cogeneration plant utilizes a combination of Gas Turbine Generation (2 x 20MW) with Heat Recovery Steam Generators, standby Auxiliary Gas Boilers (2 x 25 ton/hr) and Steam Absorption Chillers of capacity of 2,500RT per unit.

The waste heat evolved from the gas turbine is to produce steam for the steam absorption chillers to produce chilled water & condenser water. The project involved the complete design and erection of the cogeneration/district cooling plant, chilled water loop reticulation including valve chambers and 33/11kV.

The District Cooling Plant is to produce chilled water for the Putrajaya Phase 1 development which includes the Government Precinct, Prime Minister's Office and other government buildings.