Forget air-con, Singapore looks underground for a cooler future
Deep underneath Singapore’s northeastern district of Punggol, a 5km (three-mile) network of metal pipes roars as it pumps chilled water to cool offices and classrooms overhead. The 140-year-old concept known as district cooling uses less electricity than centralised air conditioners – a major advantage for a resource-starved tropical island-nation that has to import nearly all its energy and where temperatures are rising twice as fast as the global average. The city state has
Singapore is increasingly turning to district cooling technology to combat the challenges of rising tropical temperatures. By circulating chilled water through an extensive network of underground pipes, the city-state can efficiently lower the temperature of buildings in areas like Punggol. This method serves as a more sustainable alternative to traditional air conditioning units, which consume significant amounts of electricity. As a nation that relies heavily on energy imports, Singapore views this infrastructure as a vital step toward reducing its overall power consumption. The expansion of these underground systems reflects a broader strategy to adapt to a warming climate while minimizing environmental impact.
This innovative cooling strategy offers a scalable model for dense, energy-dependent urban centers to mitigate the effects of climate change while improving energy efficiency.
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