Hut 8 outlines closed loop cooling system and water management for data center project

During the Batavia City Council meeting held on July 21, 2025, significant discussions centered around the implementation of a new cooling system for a local facility, which is expected to have substantial implications for water usage and environmental compliance.

The proposed system involves a closed-loop cooling mechanism that requires an initial fill of 450,000 gallons of deionized water, comparable to two-thirds the size of an Olympic swimming pool. This water will circulate within the facility, absorbing heat from servers and then being cooled by air-cooled chillers before returning to the system. The water will only need to be replaced approximately every 2,000 days, ensuring minimal disruption and resource use over time.

Council members expressed concerns regarding the management of this water, particularly during the draining process. It was clarified that the discharged water would meet city specifications, essentially treated to drinking water standards before being sent to the wastewater treatment facility. This adherence to regulations is crucial for maintaining environmental integrity and public health.

Riley Trevall, a representative from Hut 8, emphasized the importance of using pure water for the cooling system, which is essential for maintaining the integrity of the pipes and ensuring efficient operation. The system's design mirrors that of a car radiator, where water circulates to absorb heat and is then cooled before re-entering the loop.

In addition to the cooling system, the council discussed the necessity of obtaining building permits, which will require all engineering plans to comply with city specifications. This step is vital for ensuring that the project aligns with local regulations and standards.

Overall, the meeting highlighted the city's commitment to sustainable practices while addressing the growing demands of local facilities. The successful implementation of this cooling system could serve as a model for future projects, balancing operational efficiency with environmental responsibility. As the council moves forward, further discussions will likely focus on the project's progress and any additional regulatory requirements that may arise.