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District Heating District Heating means a system supplying heat that is utilised centrally in one or several locations to a non-restricted number of customers. It is distributed on a commercial basis by means of a distribution network using hot water or steam as a medium. As district heat is produced centrally, its use allows central removal of harmful substances, which leads to a better overall environmental protection level. District Heating systems can vary substantially in size, from systems supplying only a few buildings, to system that supplies entire capital cities. District Heating allows the utilisation of low-grade energy that otherwise would be wasted, such as municipal refuse and waste heat from different sources. As an example, geothermal heat is supplying around 90% of buildings in Iceland with CO2 free heat. For example in Sweden over half the fuels used for district heating are renewable.District Cooling District Cooling means a system producing cooling services by means of a distribution network, supplying centrally produced chilled or centrally produced district heat to local chillers. District cooling is distributed on a commercial basis to a non-restricted number of customers. District Cooling is a relatively new technology that provides office buildings, hospitals etc. with quality cooling systems. District Cooling can be fed by existing District Heating systems using absorption chillers or just cold water from lake. |
