Towards Zero-Emission Datacenters Through Direct Reuse of Waste Heat

High-performance liquid cooling allows datacenters to operate with coolant temperatures above the free cooling limit in all climates, eliminating the need for chillers and allowing the thermal energy to be reused in cold climates. We have demonstrated removal of 85% of the heat load from high-performance compute nodes at a temperature of 60 degrees Celsius and compared their energy and emission balance with a classical air-cooled datacenter, a datacenter with free cooling in a cold climate zone, and a datacenter with chiller mediated energy reuse. This talk will explain how our method reduces energy consumption by almost a factor of two compared to a current datacenter and reduces energy cost and carbon footprint by an even larger factor.