Suntec City to Join World’s Largest Underground District Cooling Network at Marina Bay

Media Release


Singapore, 29 April 2024 – Suntec City will be the latest development to be connected to SP Group (SP)’s Marina Bay district cooling network, expanding what is already the world's largest underground district cooling network. In a partnership agreement signed on 29 April 2024, SP will take charge of the operation of Suntec City’s cooling system. The system will then be interconnected to the Marina Bay District Cooling network via neighbouring developments by 2027.


Suntec City’s cooling system is made up of a single central chiller plant with an installed capacity of approximately 20,000 refrigerant tons (RT) providing cooling services across its five office towers, retail mall and convention centre, covering a total net lettable area of more than 3.4 million square feet.


The expansion of the Suntec City chiller plant into the Marina Bay district cooling network will create opportunities to deliver energy efficient cooling to a wider range of developments in the area, including Marina Centre and Bugis, thereby offering sustainable cooling solutions to more customers.

The inclusion of Suntec City brings the total current cooling capacity in operation and secured by SP through its district cooling networks in Singapore to 203,000 RT – making SP the biggest provider of district cooling solutions in Singapore.

Leveraging SP’s district cooling technology will enable Suntec City to reduce its carbon emissions by at least 10,400 tonnes over the 30-year operating period, akin to removing more than 315 cars from our roads annually.


Under the agreement, SP will oversee the maintenance and future cooling equipment replacement. This encompasses the prompt replacement of aging electrical systems and a gradual transition to energy-efficient and eco-friendly chillers, all while accommodating any expansionary cooling requirements from Suntec City.


Mr Ivan Koh, the Chief Executive Officer of APM Property Management, the Managing Agent for Suntec City said, “Our key priority has always been to achieve optimum energy efficiency for our buildings. This partnership with SP Group to implement district cooling for Suntec City is a significant stride in our sustainable energy solutions, and advances our journey towards the reduction of carbon emission for a greener built environment for Singapore.”


Mr S. Harsha, Managing Director of Sustainable Energy Solutions (Singapore), SP Group, said, “As Singapore accelerates towards our net-zero goals, sustainable energy innovations and solutions such as district cooling networks will be crucial to support our demand for urban and economic growth in a sustainable manner. We are delighted to welcome Suntec City to our Marina Bay district cooling network and look forward to bringing this proven technology to more developments, enabling them to be more energy- and cost-efficient."


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About SP Group


SP Group is a leading utilities group in the Asia Pacific, empowering the future of energy with low-carbon, smart energy solutions for its customers. It owns and operates electricity and gas transmission and distribution businesses in Singapore and Australia, as well as sustainable energy solutions in Singapore, China, Thailand and Vietnam. 


As Singapore’s national grid operator, about 1.6 million industrial, commercial and residential customers benefit from its world-class transmission, distribution and market support services. These networks are amongst the most reliable and cost-effective worldwide. 


Beyond traditional utilities services, SP Group provides a suite of sustainable and renewable energy solutions such as microgrids, cooling and heating systems for business districts and residential townships, solar energy solutions, electric vehicle fast-charging stations and digital energy solutions for customers in Singapore and the region. 


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