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Project Launch: 10/01/2020

Partners: Franklin Energy, LiquidCool

This field evaluation project examines the energy savings from a server rack using liquid immersion cooling.


Immersion cooling consists of placing servers in a dielectric liquid to efficiently remove heat. In a traditional data center, waste heat from servers is rejected into the server room before being moved around and cooled. In immersion cooling, the heat is absorbed by a liquid at the point of heat generation. The liquid is significantly more effective at absorbing heat than air because of its higher density and heat capacity. As a result, the liquid can be maintained at higher temperatures than room air in a traditional data center, improving chiller performance and allowing for more free cooling opportunities.

The project team will conduct a field evaluation of savings from a liquid-cooled server rack at a telecommunications customer site in the ComEd service territory. The study will establish baseline energy use, monitor data after the installation, and analyze the energy savings. To understand market barriers for implementation in ComEd’s territory, the team will also interview manufacturers and potential customers.