Optimized Energy Flows and Electric Networks in Nearly Zero-Energy Buildings

A recent European directive enforces that all new buildings are nearly Zero-Energy Buildings (nZEB) by the end of 2020. A research project is described targeting the integration of new technologies in buildings in achieving this goal, such as building integrated photovoltaic systems (BIPV), active demand side management (DSM), electric vehicles (EVs), storage, etc. The focus of this research topic lies on the electrical system. However, both the electrical and thermal energy flows in buildings will be taken into account, as well as the building aspects. This will result in optimized energy flows and optimized electricity networks in buildings, while maximizing the self-consumption of locally generated electricity. A tool for a flexible approach for this integration is under development. This tool allows simultaneous transient simulations of thermal and electrical systems at building level. In this paper, the research topic and models will be explained in depth and the first results will be given.status: publishe