Currently, the operation of buildings is one of the main sources of energy usage in Europe. Given current construction rates, 80 percent of the European building stock that will exist in 2050 is already built, and most of this existing stock suffers from poor energy performance. Therefore, the efficient streamlining of low or zero energy building renovation processes, involving both significant energy efficiency increases and renewable energy supply, constitutes a key action in order to achieve current EU-targets for energy consumption and emission reduction. This will also have a positive effect on unsustainable energy supply and consumption trends.
The ZenN-project focuses on the zero energy building renovation process through the implementation and study of five demonstrations near Zero Energy Renovation projects at neighborhood scale. The demonstration projects are located in a number of cities located in northern, central and southern Europe. Furthermore, the project encompasses the development of a series of research and dissemination actions associated with these demonstration projects.