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Power capacity lost to air-cooling can amount to as much as 33%* of the total available power even in modern data centre builds. This is primarily due to the amount of power capacity that needs to be set aside for chilled water plant pumps and fans for the design peak case.

Another, more hidden, factor is the power loss caused by server fans, this factor can easily contribute 5-10%* to the IT load, not expressed in the standard PUE calculation. That means that even state-of-the-art air-cooling designs and relaxed temperature settings will strand around 15-16%* of site power.


Not only does air-cooling contribute to a significant loss in power capacity and tie up large amounts of power and capital that sits idle, it has become a limiting factor in the overall performance of IT hardware.

With virtualization and automation of IT management the utilization of systems has markedly increased in recent years and has resulted in a shift towards higher performance and higher power IT equipment. At the same time server chips have become dynamic in their speed settings and semiconductor trends are dictating that thermal requirements of future processors will only go up, which means air-cooling will leave more and more performance on the table.


Hotter IT equipment demands effective-cooling and for air-cooling to be effective it currently requires hot and cold aisle containment. This not only consumes significant amounts of power and restricts layout on the data floor, it also limits the physical location of the facility as it requires increasingly expensive real-estate for its complex and water-thirsty cooling infrastructure.

The limitations of air-cooling with higher performance CPUs and GPUs placing increasing demands on the facility means that optimizing air-cooling any further will yield only marginal gains at best.

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1.6 MW data centre reference design

** Source Solvay * Source Schneider Electric


Our patented chassis level liquid cooling technology with precision delivery of a dielectric coolant can easily accommodate the increasing heat loads from the latest processor roadmaps – from relatively modest densities through to 45kw per rack. But if it’s Formula 1 compute, networking and storage you’re looking for, we’ve already cooled 100kw per rack.

Dealing with heat at source and managing it effectively, our cooling technology has 1000 times** the capacity to remove heat from electronics than air-cooling. Adding more cooling capacity our technology enables processors to be configured for higher power envelopes, whilst maintaining run at higher performance levels.

By removing the need for and the restrictions created by complex air-cooling infra-structure, our cooling technology can use 5 times* less energy, 75%* less space, and contribute to significant water savings. Because the servers are 100% sealed, protected, resilient and thermally stable over a wide range of operating temperatures, they can be deployed in the harshest environments.

Our cooling technology not only offers a CapEx saving of 30%* and an OpEx saving of 70%*, it also helps reclaim power capacity, boost IT performance, reduce failure risk, and simplify the data centre.