NVIDIA has introduced a new liquid-cooling system for its Rubin AI infrastructure designed to substantially reduce water consumption in data centers. Rather than relying on conventional cooling towers, the system employs a closed-loop design that operates at higher temperatures, virtually eliminating water waste. The announcement was made at London Climate Week 2026 as part of NVIDIA's broader initiative to develop more environmentally sustainable AI infrastructure.

The technology promises significant water savings. In optimal climate conditions, water consumption could be reduced from approximately 2.6 million gallons per megawatt annually to nearly zero. For a large facility of 50 MW, this translates to over $4 million in annual savings on both energy and water costs. This development is particularly timely as India's data center capacity is projected to expand substantially by 2030, raising concerns about the environmental impact of rapidly growing AI infrastructure.