WATER POSITIVITY
Government and AWS collaboration The project is structured through coordination with the Government of the Hong Kong Special Administrative Region( HKSARG). In May 2025, the Water Supplies Department, the Electrical and Mechanical Services Department and the Building Technology Research Institute agreed to support the use of recycled water for cooling in the AWS facility. Roger Wong, Director of Water Supplies at Hong Kong Special Administrative Region Government( HKSARG), stated:“ 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.”
This alignment reflects an existing policy direction within Hong Kong to expand reclaimed water use beyond limited applications. Data centres, with predictable and continuous demand, present a use case where treated water can be deployed without affecting potable supply. From AWS’ perspective, the project required alignment across regulatory, engineering and operational domains.
Gunalan Kaniasan, Water Infrastructure Manager for Asia Pacific at AWS, explains:“ The facility will source recycled water from a government’ s water reclamation plant, using reverse osmosis technology and advanced treatment processes to meet stringent data centre cooling requirements. The system is currently in its detailed design phase.” Gunalan’ s statement indicates that wastewater reuse in this context depends on treatment standards that meet cooling system requirements, particularly in relation to scaling, corrosion and biological control.
“We are excited to support AWS’ initiative to use recycled water for data centre cooling for the first time in Hong Kong”
Roger Wong Director of Water Supplies HKSARG
88 May 2026