Intelligent Data Centres Issue 02 | Page 36

FEATURE THE NEXT GENERATION OF DATA CENTRES SHOULD, BY DESIGN, UTILISE RESOURCES EFFECTIVELY, WHILE ENSURING SEAMLESS INTEGRATION WITH THEIR SMART CITY ECOSYSTEM: SMART GRIDS AND HEATING NETWORKS. day, a data centre is nothing else but a system where electricity comes in and heat comes out. Heat that in most cases is being just rejected to the surrounding environment, wasted. But looking at the energy flows within a data centre, a new series of solutions can emerge. A data centre can optimise both its design and operations to deliver heat to local heating (and cooling) networks. They can recover, redistribute and reuse their residual heat for building space heating (residential and non-residential such as hospitals, hotels, greenhouses and pools), service hot water and industrial processes. Depending on the cooling technology in use, the data centre may harvest heat at the desirable temperature level. In any case, a heat pump may be in place to increase, as necessary, the low calorific heat generated by the data centre before its delivery to the heat grid. The data centre may also be able to adjust its server room temperature set points to increase the amount of thermal energy generated. A data centre may capitalise on the use of a heat storage, such as a 36 Issue 02 thermal energy storage system, to store heat during the summer and deliver it to the heat grid during the winter in addition to the direct heat normally supplied, increasing its heat capacity. The main barrier in these scenarios is actually raised by local policies, operations and infrastructures that may or may not be in place to enable recovery, redistribution and reuse of residual heat. So, it also falls on the shoulders of the local communities and area developers. There are examples where indeed all stakeholders work together to ensure data centres can integrate their own operations to the needs and wants of other sectors, linking their commons (B2B). Such an example is the Green Datacentre Campus in the Amsterdam Metropolitan Area, with the Schiphol Area Development www.intelligentdatacentres.com