Beginning with some background information on the unique German position regarding the energy supply eliminating any nuclear power by 2022 but enforcing the use of renewable energy sources, the challenges for both the building and the power generation sector will be highlighted. The talk will introduce opportunities to improve energy performance of buildings by new and innovative HVAC concepts as well as for increasing the penetration of renewable and environmental energy sources for heat and power supply in cities. That is also why a particular focus will be on other relevant aspects as multi-level district heating, combined heat and power generation and the proper balance between large-scale energy generation in heat and power plants and distributed small-scale heat and power generation in buildings in terms of a global optimum in energy use and emissions. Currently ongoing research projects at the Technical University of Dresden will be presented.
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