DCN August 2016 - Page 16

cooling The Dutch glass house agriculture industry is uniting to investigate the feasibility of putting excess data centre heat to good use. VEGE-MIGHT! Will flowers and vegetables lead the way towards data centre heat reuse? Sander Elvik of ICTroom takes a detailed look at the future of data centre cooling and its environmental impact, as well as opportunities. W ith energy costs rising and with environmental legislation becoming ever more stringent and sustainability becoming a goal in its own right, more and more data centre operators are gearing themselves up towards the next step in data centre cooling efficiency: heat reuse. The cooling infrastructure is a vital element in any data centre, providing essential support to the business applications running in them. These applications in turn 16 are becoming even more critical to the society as a whole, be it for financial and/or economical services, healthcare, science, communication (social media) or entertainment. Essentially, our society depends on the services provided by data centres, and as such the cooling infrastructure works indirectly in support of society. The cost of cooling But this support comes at a cost. With cooling being the major part of it, the PUE of data centres in the past used to be at an average of 1.8 or higher. In other words, for every Watt of energy that was consumed by