Amazon Web Services (AWS) has unveiled plans to establish Hong Kong’s first data centre cooled with recycled water, a pioneering move aimed at conserving the city’s potable water resources.
The new facility, located in Hong Kong’s North District, will source recycled water from a government-operated reclamation plant rather than relying on fresh water for cooling. Once fully operational, the system is expected to save enough fresh water to meet the daily needs of around 3,000 residents.
The initiative is the result of a collaboration between AWS and the Government of the Hong Kong Special Administrative Region (HKSARG). In May 2025, the Water Supplies Department, the Electrical and Mechanical Services Department, the Building Technology Research Institute, and AWS formalised an agreement to implement recycled water use for data centre cooling.
“We are delighted to support AWS’s initiative to adopt recycled water for data-centre cooling for the first time in Hong Kong,” said Roger Wong, Director of Water Supplies at HKSARG. “This aligns closely with our strategy to expand the use of recycled water for non-potable purposes.”
The project further strengthens AWS’s presence in Hong Kong, where it launched the AWS Asia Pacific (Hong Kong) Region in 2019 with three Availability Zones. It also marks an important step in AWS’s global water stewardship efforts. The company currently employs recycled water at 24 sites worldwide and intends to quadruple that figure by 2030.
The development is consistent with AWS’s wider commitment to become water positive by 2030—returning more water to the communities it serves than it consumes through direct operations. By the end of 2024, AWS had already achieved 53 per cent progress toward this goal.
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