Data Center Operators Look to Cooling Strategies for Greater Efficiency Liquid cooling – immersion cooling is a relatively new cooling technique that submerges computer equipment in a non-conductive fluid. (Photo: Summer; Servers immersed in dielectric fluid in a Submer SmartPodX immersion cooling enclosure.) . wraps up with a deep dive into different data center cooling strategies, as well as tips on how to navigate balancing power efficiency and water usage — a process that is unique to each data center and is affected by continual technology change. Get the full report. Seeking a Balance The best data center cooling strategy is to seek a balance. Since 2006, Green Grid’s Power Usage Efficiency (PUE) rating has been used as the gold standard for data center efficiency. PUE is calculated by dividing the amount of power entering a facility by the amount used to support the IT load, with the goal being to get as close to a 1:1 ratio as possible.