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Award-winning Cooling

We wanted to be one of the most efficient data centres in the world. Our cooling systems had to exceed the most demanding environmental and cooling requirements of a modern-day data centre.

That is why we chose to do things independently. We completely designed and built our own revolutionary evaporative cooling system that negates the need for mechanical cooling, thus providing a positive impact for both our efficiency and the wider environment.

  • European "Green Data Centre" award winners for fresh air cooling technology
  • True 2N resilient evaporative cooling system
  • Class A classification cooling for high density computing
  • Annualised PUE of 1.2
Resilient power

Award Winners for Pioneering
a Fresh Air Cooling System

For 100% of the year, our data centre utilises fresh air-cooling. We bring the air in externally and filter it to clean room standards to eliminate contamination, cooling it when required utilising the evaporative drop created when changing a liquid to a gas, then passing into the data centre through a bank of multiple redundant fans. Mechanical cooling also requires many moving parts and systems to come together faultlessly, whereas evaporative technology has almost no moving parts, so much less opportunity to fail. Such technology saw us awarded the Green Data Centre of the Year in just our first year of operation.

Evaporative Cooling

Custodian operates a revolutionary evaporative cooling system, completely negating the need for mechanical cooling, providing a positive impact for both the company's efficiency and the wider environment.

For 100% of the year, the data centre utilises fresh air cooling, brought in from outside and filtered to clean room standards to eliminate contamination, passing into the data centre via a bank of multiple fans. In the event that British temperatures soar beyond a set threshold, the evaporative system comes online.

A reverse osmosis plant purifies water which the system then uses to produce a very fine mist. Within a large chamber, this moisture is used to raise the humidity of the slow moving air which passes through, decreasing its temperature. The evaporative system also acts as a room humidifier, and is supported by dual water mains, ensuring that it is resilient against mains failure. This approach is 2N resilient, with completely separate duplicate systems protecting against failure should one element be affected by outage or technical difficulty.

For further details on Custodian's revolutionary approach to cooling, see the following article published at Blue and Green Tomorrow.

An overview of our data centre's green cooling system

Custodian Support

Sophia is part of our 24/7 NOC team. Her role is to take support calls from clients and help deal with these when they arise. Her day also includes responding to remote hand jobs, monitoring all of our systems and generally making sure everything works how it should.

Our 24/7 NOC team are on hand should you need to rectify an issue at 3am, whether it be a CAT5 cable or replacing a hard drive. We endeavour to provide exceptional levels of support, no matter what time of day it is.

Find out more about our Onsite Support.

Sophia Malik - NOC Engineer
Live PUE Graph

We are the only mixed colocation facility in the world to display our PUE online.

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