Singapore’s largest industrial district cooling system
21st October 2025
SINGAPORE: Described as Singapore’s largest, an industrial district cooling system, built, owned, and operated by a joint venture between SP Group and Daikin Singapore, is now in operation.
The innovative district cooling system, employing a 2,000 tonne Daikin HFO chiller, will significantly improve the environmental performance of a high-volume semiconductor manufacturing site operated by STMicroelectronics at Ang Mo Kio TechnoPark.
The new system is expected to reduce carbon emissions by 120,000 tonnes per year and cooling-related electricity costs by 20% per year. In addition, it will repurpose over 500,000m3 of water consumption per year by using reject reverse osmosis water, previously used in ST cooling towers.
The system, with its installed capacity of up to 36,000RT, delivers continuous chilled water to cool both manufacturing and office spaces via a centralised closed-loop pipe network replacing individual chillers in each building. The total area served by the system is approximately 90,000m2.
The district cooling plant has been awarded the Green Mark Platinum Super Low Energy certification by Singapore’s Building and Construction Authority for its exceptional energy efficiency and sustainable design.
Incorporating whole-life carbon assessments during design and construction of the plant also enabled a reduction of about 44 percent in embodied carbon compared to industrial building benchmarks, achieved through optimised material choices and system design to further lower the plant’s carbon footprint.
Utilities group SP has also partnered with ST to upgrade the cooling system at its Toa Payoh site. Under a 20-year chilled-water-as-a-service agreement, SP will design, build, operate, and maintain a new high-efficiency chiller system, scheduled for completion by December 2025. The system will improve energy efficiency and aims to reduce carbon emissions by approximately 2,140 tonnes per year.
Additionally, the new installations free up around 4,000m2 of space at Ang Mo Kio TechnoPark, which will enable ST to install other equipment contributing to environmental impact mitigation. This includes perfluorocarbon (PFC) abatement equipment, with near-future plans for additional water reclamation systems and volatile organic compounds (VOC) abatement as part of its ongoing sustainability efforts.
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