
Data centers use vast amounts of water primarily to cool air, not chips. Evaporative cooling systems chill the air that gets blown across server racks—and that evaporation is where the water loss occurs. Remove the air, and you eliminate the majority of water consumption.
In this episode of Thinking On Paper, Simon Jesenko, CEO of Iceotope, explains how fanless, precision liquid cooling is revolutionizing AI data center infrastructure. By circulating 15 to 20 liters of dielectric fluid—a highly refined, safe liquid—inside a sealed chassis, Iceotope cools every single component directly without relying on air or external fans.
Jesenko addresses the sensational headlines surrounding AI's water footprint, noting that critics are describing legacy air-cooled facilities. Once data centers transition to fully sealed liquid-cooled architectures, water and energy consumption drop dramatically.
Please enjoy the show.
Links & Resources
• Learn more about Iceotope: https://www.iceotope.com/
Connect with Thinking on Paper
◼ Choose your own technology adventure: https://www.thinkingonpaper.xyz
◼ Running a tech conference? Book us to host: Conference Hosting
◼ Listen on Spotify: Listen on Spotify
◼ Listen on Apple Podcasts: Listen on Apple Podcasts
◼ Follow Mark: LinkedIn
◼ Follow Jeremy: LinkedIn
Chapters
(00:00) Introduction to Data Center Cooling Challenges
(01:07) Data Center Water Usage vs. Agriculture & Industry
(03:00) Open Loop vs. Closed Loop Cooling Systems
(04:18) Guest Introduction: Simon Jesenko (CEO, Iceotope)
(05:02) Misconceptions About Data Center Water & Power Consumption
(06:08) The Evolution From Legacy Air Cooling to Liquid Cooling
(07:31) Direct-to-Chip Liquid Cooling Explained
(08:40) Water Consumption: Traditional vs. Fully Liquid-Cooled Facilities
(10:29) Market Transition Toward Total Liquid Cooling
(12:23) Airflow Elimination & System-Level Thermal Management
(13:34) Environmental Factors & Geographic Placement of AI Workloads
(15:50) Integrating Precision Liquid Cooling into OEM Hardware
(19:02) Future-Proofing Next-Gen High-Density GPU Clusters
(22:02) Immersion Cooling History & Lessons from Crypto Mining
(23:25) What is Dielectric Fluid? Safety & Environmental Impact
(26:50) Market Adoption & Enterprise Opportunities for Iceotope
(30:56) Optimizing PSU Thermal Efficiency & Tokens per Watt
(34:15) Industry Trends in Next-Gen High Performance Computing (HPC)
(37:24) Thermal Limits & Capacities of Current Liquid Cooling Tech
(40:26) Daily AI Workflows & Closing Thoughts
More episodes from "Thinking On Paper"



Don't miss an episode of “Thinking On Paper” and subscribe to it in the GetPodcast app.








