Nvidia Announces Hot-Water Cooling System to Cut Data Center Water Use
5 verified4 unconfirmed
Nvidia has announced a new warm-water cooling system for data centers that the company says can dramatically reduce water consumption. The system uses 100 percent liquid cooling and runs servers hotter, with coolant entering at 45°C (113°F), allowing outdoor dry coolers to reject heat without evaporative cooling. Nvidia claims the design can achieve up to a 100 percent reduction in on-site water use, bringing consumption to near zero. However, both sources note that the solution addresses only water use within the data center facility. Water consumed in electricity generation and chip manufacturing — which can double or triple the total water footprint — remains unaffected. Nvidia’s chief sustainability officer, Josh Parker, stated that the system takes water use “from roughly 2.6 million gallons per megawatt per year for conventional cooling-tower-based systems to near zero.” The announcement comes amid growing public scrutiny of data centers’ environmental impact, particularly their water and energy demands.
What’s verified
Nvidia announced a warm-water liquid cooling system for AI data centers that it says reduces on-site water use.
The system uses coolant at 45°C (113°F) and operates in a closed loop, requiring no new water for cooling.
Nvidia claims the design can reduce water consumption by up to 100 percent inside the data center.
Water used in electricity generation and chip manufacturing is not addressed by the system.
Josh Parker is Nvidia’s chief sustainability officer and spokesperson for the announcement.
Not yet confirmed
Specific water consumption figures for power generation (2.7 billion gallons per day for fossil fuel plants, 1.17 liters per kilowatt-hour for natural gas) were reported by only one source.
Only one source mentioned that TechCrunch asked Nvidia for clarification and has not yet received a reply.
Only one source stated that Nvidia’s blog post does not mention the cost difference between this design and traditional air-cooled data centers.
Only one source identified the design as part of Nvidia’s “Rubin” generation reference design and noted that Amazon has also touted higher heat tolerances for efficiency.
Misconceptions
The sources address that Nvidia’s system reduces on-site water use but does not address water consumed in electricity generation or chip manufacturing, which can account for a significant portion of total water consumption.
Key figures
Josh Parker, Nvidia chief sustainability officer
Sources: TechCrunch, The Verge
