KUALA LUMPUR (Aug 18): China is known for building mega projects and machinery these days and it has added another to the list with central District Cooling System (DCS) that covers more than 2.75 sq km of public buildings in the Qianhai area of Shenzhen.

Shenzhen Qianhai Energy Technology Development Co built the No 5 cooling station which started operations in June, reported South China Morning Post (SCMP) recently.

The report said that three stations have been finished (including No 5) and another seven will be built “over the next few years”.

When all 10 stations are completed, they will pump out up to 400,000 refrigeration ton (RT) of cold air to cater to 19 million sq m. The cost of all this is RMB4 billion (RM2.6 billion).

Fu Jianping, director of Qianhai energy and vice-president of the District Energy Committee of the China Association of Building Energy Efficiency told SCMP that Qianhai’s system can “save 130 million kilowatts of electricity every year, which is equal to burning 16,000 tonnes of coal, reducing carbon dioxide emissions by 130,000 tonnes”.

“A DCS is a centralised system so it cuts down machinery by 20 per cent, as opposed to installing individual machines, and the fewer machines, the less refrigerant we use. That’s one way to reduce emissions,” he explained.

Unfortunately, the system is not meant for residential use. “The characteristics of residential households determine that they are not suitable for DCS, the system calls for more routine usage, such as from eight to five, that includes offices, commercial centres, subways or data centres,” said Fu.

Shenzhen Qianhai Energy Technology Development Co is also collaborating with Hong Kong on a DCS system for Kai Tak.

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