Amazon Web Services (AWS) has declared its plans to open Hong Kong’s first data centre that uses recycled water for cooling operations. The data centre in Hong Kong’s North District will use recycled water from a government water reclamation plant instead of using fresh water for its cooling systems, reducing demand on Hong Kong’s potable water supply.
Once fully operational, the system will save enough fresh water to meet the daily consumption needs of approximately 3,000 Hong Kong residents.
The project involves 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 reached an agreement to use recycled water for data centre cooling.
Expressing their view, Roger Wong, Director of Water Supplies at HKSARG, said, “We are excited to support AWS’ initiative to use recycled water for data-centre cooling for the first time in Hong Kong, which closely aligns with our strategy to expand the use of recycled water for non-potable uses.”
The project builds on AWS’ established presence in Hong Kong, where the company launched the AWS Asia Pacific (Hong Kong) Region in 2019 with three Availability Zones. The facility represents a significant milestone in AWS’ global water stewardship efforts, as the company currently uses recycled water at 24 locations and plans to quadruple this number by 2030.
