Solar district heating in East Germany - Transformation in a cogeneration dominated city

Realising the aims and visions of energy policy requires special solutions. The contribution presents a solution which respects the conditions of conventional district heating (DH) systems in Germany and a heterogeneous building structure in an urban quarter. The simulation shows that a solar fraction of about 10 % can be reached easily from technical and economic points of view. The concept can be transferred to further areas within a town (urban restructuring) and other conventional DH systems in Germany. In Chemnitz, this concept is being implemented step by step from 2013 to 2018. (C) 2015 The Authors. Published by Elsevier Ltd.