PUB Invests S$12M in Water Efficiency for Singapore's AI Data Centres and Chip Fabs
Source: CNA
Singapore's national water agency PUB is channelling S$12 million into developing water-saving solutions for wafer fabrication plants and data centres, the two industries most critical to the city-state's AI ambitions. Deputy Prime Minister Gan Kim Yong announced the funding at Singapore International Water Week, tying water security directly to AI infrastructure resilience.
Singapore's national water agency is pouring S$12 million into a new research push aimed at slashing water consumption in wafer fabrication plants and data centres — the two industrial sectors that form the physical backbone of the city-state's AI economy. Deputy Prime Minister Gan Kim Yong announced the funding at Singapore International Water Week, framing it as part of a broader strategy to keep Singapore's AI-ready infrastructure running without straining its most precious resource.
The S$12 million industrial water solutions grant sits within a larger S$97 million RIE 2030 research package from the National Research Foundation — up from S$74 million in the previous RIE 2025 cycle. PUB will form Industrial Water Solutions Innovation Ecosystem Alliances connecting government agencies, trade associations, and research partners. For wafer fabrication, the ecosystem includes the START Centre, Singapore Water Association, and the Singapore Semiconductor Industry Association. For data centres, PUB teams up with the Sustainable Tropical Data Centre Testbed, SWA, and SGTech.
The numbers explain the urgency. Data centres and semiconductor fabs are among the most water-intensive facilities on the planet — they need massive quantities of ultra-pure water for chip manufacturing and significant cooling loads that pull from municipal supplies. With Singapore's data centre capacity expanding rapidly to meet AI demand and semiconductor heavyweights like Micron and Applied Materials deepening their local footprints, the water bill is climbing fast. PUB's goal is to develop cost-effective treatment and recycling technologies that can be deployed at commercial scale, then exported to markets around the world. DPM Gan put it plainly: "Our aim is not only to meet Singapore's own needs. We also want to develop solutions that can be applied in cities and industries globally."
The four-stage technology pipeline moves from problem identification with trade associations through partner-led solution recommendations, validation testing at facilities like the START Centre and STDCT, and finally commercial deployment. Successful projects will be consolidated into a portfolio of water recycling and cooling technologies available for local and international adoption. PUB is also investing S$85 million in municipal water solutions — treatment, desalination, and an energy-positive used water treatment validation plant slated for 2027 — meaning the industrial focus is one prong of a comprehensive water R&D upgrade.
Why it matters for Singapore: This funding directly addresses a tension that few people talk about in the AI boom: data centres and chip fabs consume enormous amounts of water, and Singapore is one of the most water-stressed countries in the world. Building AI infrastructure without solving for water efficiency isn't just environmentally irresponsible — it's a long-term strategic risk. PUB's S$12 million signal tells the industry that Singapore intends to solve for both compute growth and resource constraints simultaneously, and it wants to export those solutions globally. For Singapore's AI ecosystem, that means the runway for data centre expansion just got a little longer and a lot more sustainable.