Cooling system deployment at Volta, City of London data centre

In August, Volta Data Centres announced the deployment of a specially developed row-based cooling system at its Great Sutton Street (GSS) data centre. This modular system was designed and built by data cooling innovators, SemperTec, and places the server cooling exactly where Volta’s customers need it. With no IT rack being more than 4 metres from a cooling unit, the correct quantity of cool air is always delivered to the server intakes. Short, direct air paths make the coolers efficient as well as effective; each cooler can deliver up to 60kW of cooling whilst consuming just 75 watts of power.

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This unique cooling system also boasts an embedded, self-protecting ‘hive’ logic, which means that each cooler continually monitors adjacent units for faults, automatically adjusting their capacity to protect the servers from the slightest change in temperature. This approach, coupled with an N+1 capacity provision within each pod, delivers outstanding reliability and resilience.


Matthew Dent, CEO, Volta Data Centres, explained, “Our state-of-the-art row-based cooling system has resilience of N+1 per unit and uses 42% less fan power than the standard CRAC units you see in most facilities.

This is a real advantage for us. It means we can reduce our power consumption to help meet our environmental responsibilities, whilst also providing our customers with the quality of service and risk assurance they expect from a Central London data centre.”

In addition, due to the “plug and play” design of the modular system, Volta is able to relocate or replace cooling units within minutes, significantly enhancing the flexibility of the facility and further reducing the risk of equipment failure.

SemperTec continues to work with Volta, offering ever more refined environmental management and monitoring services as the facility fills with customers, each with different demands. Rob Mills, CEO, SemperTec, commented, “We are a small, multidisciplinary team led by innovation. This structure allows us to be fast on our feet and to offer bespoke solutions to each and every client. It has been a hugely rewarding challenge working with Volta. We believe that we have helped them to realise a flexible, future-proofed data facility that their customers can have confidence in, and we look forward to continuing to help them to maintain their advantage in the Co-location sector.”