# NVIDIA data centers now cooled with hot water New 45°C liquid cooling system delivers major energy and water savings. - **Source:** [Engadget - Technology News & Expert Reviews](https://brifing.si/source/16dd2da6-3eea-4d1e-b34f-45e846cdf037) - **Published:** 2026-07-20 - **Topic:** [Business](https://brifing.si/c/business) - **Original article:** - **On Brifing:** https://brifing.si/s/6aecd6ca-e7a7-443e-8515-0f48d46ee683 ## The hot water cooling paradox NVIDIA's new AI servers use liquid cooling at temperatures up to 45°C (113°F). Contrary to traditional systems, this closed-loop design reduces energy consumption by up to 40%. While using hot liquid for cooling seems counterintuitive, it perfectly aligns with thermodynamics principles. ## Energy efficiency revolution Rubin-generation AI infrastructure shows each 1°C increase in coolant temperature cuts cooling costs by 4%. For a 50MW facility, this translates to $4M annual savings. Unlike air-cooled systems, it operates without mechanical chillers in most climates. ## Game-changing water conservation The system eliminates traditional towers that consume 2.6M gallons/MW/year. The closed-loop architecture with no evaporative cooling or water towers reduces consumption to near zero - a critical advantage in drought-prone regions. ## Chip performance breakthrough Coolant entering at 45°C absorbs heat and exits at 55°C. Liquid-cooled plates maintain chips within safe thermal limits at full performance. This innovation could redefine semiconductor design paradigms. ## Era of silent data centers Gone are the deafening noises from cooling fans and backup generators. NVIDIA's architecture also improves space efficiency - systems requiring 6 rack units now fit in 2. The change creates more humane working environments. ## Sustainable tech legacy This innovation addresses data centers' biggest pain points: energy consumption, water usage, noise pollution, and land use. NVIDIA's breakthrough could become the industry standard for sustainable computing infrastructure. ## Sources covering this story - https://www.engadget.com/2214770/nvidia-data-center-liquid-cooling-temperature-heat/ — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._