Supplying buildings with renewable energy in a climate-neutral way requires integrated system concepts. Intelligently combining innovative technologies, sector integration and measures to increase flexibility will make it possible to achieve high levels of coverage with renewable energy. The “Solar Energy Buildings” project (IEA SHC Task 66) aims at developing economical energy supply concepts that enable solar solutions for covering at least 85 % of the heating demand, 100 % of the cooling demand and 60 % of the power demand for households as well as e-mobility in multi-storey residential buildings and neighbourhoods. Complete systems are being developed for new buildings as well as for comprehensive renovation of existing buildings. One important focus lies on a synergetic approach to interactions with network infrastructure (electricity and heat) in the sense of bidirectional flexibility.
The goal of the international cooperation is to identify relevant stakeholders and their needs as well as to develop a technology portfolio and optimised solutions for integrated energy systems. This involves collecting, analysing and evaluating new approaches and insights from case studies in various countries. The results will serve as the basis for recommendations to policymakers and companies in energy-related industries. Under German leadership, experts from Albania, Australia, Belgium, Denmark, Norway and Austria are collaborating on this project.