The research on energy-optimised buildings and districts is focussing in particular on innovative, efficient and economic supply structures. Systemic approaches instead of individual solutions are required to progress sectoral coupling and digitisation and to significantly reduce primary energy requirements throughout the system through the integration of renewable energies.
In future, renewable energies will therefore supply not only the sectors already driven by electrical energy but the energy system as a whole. This particularly applies to the provision of low-temperature heat for space and domestic hot water heating in buildings and districts. And because the fluctuating supply of renewable energy means there is often a considerable overproduction of solar and wind power, all options for flexibly using this energy must be developed in all load sectors.