Status Report on District Heating Systems in IEA Countries

The study presents an evaluation of district heating systems in IEA countries based on characteristic parameters such as the annual heat losses, the linear heat density in MWh/(a m) (where 1 m refers to the length of the pipeline), and the connection load. Data are available and presented for Austria, Denmark, Finland, Germany, and Switzerland covering a total of 800 district heating systems. An additional assessment is performed for the case of Switzerland where detailed information on 52 systems was collected and evaluated.

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