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Latest PUE publications


The heart of the cloud doesn’t beat, it whirrs

Who’d have thought a data centre could be so full of surprises? I am grateful to CenturyLink Technology Solutions for accepting my request to visit their site in Slough – after all, if I am to write about them and their use every day, I should at least have witnessed this beating – or whirring… Read More


Data centres – putting less in but getting more out

A lot of attention is being paid to the green credentials of data centres in particular their power usage effectiveness (PUE) as a rating of how much energy is wasted – and with waste comes costs. Nick Razey advises on what is best practice in minimising inefficiency  Effectively consolidating space and power constrained legacy data… Read More


Evolving power trends in the data centre

Direct current, more robust power supplies, standby power systems, air side economisers, running at higher ambient temperatures and replacing copper with aluminium are just some of the methods considered by Guy Ruddock, who is responsible for the development of the data centre and node estate for Colt,  making data centres more efficient. By 2020, analyst… Read More


Green data centre’s secrets revealed

A new data centre has had its potential environmental impact massively reduced by using green data centre technologies which has also helped improved its power usage effectiveness (PUE). Adam Smith, director at Paragon Internet Group, the parent company of three cloud web hosting companies, told the Data Centre World conference about how the centre has… Read More