Nvidia Introduces Innovative Warm Liquid Cooling System to Boost Data Center Efficiency

• June 23, 2026

Nvidia has announced a breakthrough in data center cooling technology designed to reduce both energy consumption and water usage. The company’s new system employs a liquid coolant composed of 75% water and 25% propylene glycol, which circulates at a relatively warm temperature of 45 °C (113 °F).

While the notion of warm liquid cooling in data centers might seem counterintuitive, Nvidia asserts that this temperature is sufficient to effectively manage the heat output of its advanced Rubin chips, maintaining chip temperature below 55 °C (131 °F). This approach contrasts with traditional cooling systems that rely on colder fluids or chilled air, which often require significant energy and fresh water resources.

Reinventing Data Center Cooling

Data centers have long grappled with the challenge of balancing cooling efficiency against resource consumption. Conventional air conditioning methods and chilled water systems can be energy-intensive and consume large quantities of water, factors that contribute to operational costs and environmental impact.

Nvidia’s solution centers on using a warmer coolant mixed with propylene glycol, a substance known for its antifreeze properties, which helps maintain system stability. By operating at 45 °C, the liquid cooling system avoids the need for complex refrigeration, thereby reducing power demand and water usage.

This efficiency gain could be particularly important as data centers continue to scale to support ever more powerful AI workloads. The Rubin chips targeted by this cooling system are part of Nvidia’s suite of processors designed for high-performance computing, which generate significant heat that needs effective dissipation.

Implementing warm liquid cooling technologies could set a new industry standard, offering a more sustainable path forward as demand for computing power accelerates. Although specific deployment details and commercial availability timelines were not disclosed, the announcement signals Nvidia’s commitment to advancing energy-conscious infrastructure innovations.

Data center operators are under increasing pressure to meet sustainability goals while ensuring maximum uptime and performance. Innovations like Nvidia’s warm liquid cooling system represent a potential step toward mitigating the environmental footprint of large-scale computing facilities.

Nvidia unveils a new warm liquid cooling technology aimed at cutting energy and water use in data centers significantly.