Germany
The Buildings Energy Act links new heating systems to renewable energy
Germany regulates building energy performance through the Gebäudeenergiegesetz (GEG), the Buildings Energy Act, in force since November 2020. Its 2023 amendment, effective from January 2024, requires newly installed heating systems to run on at least 65% renewable energy. The rule applies straight away to new buildings in new development areas; for existing buildings it is tied to municipal heat planning, which larger cities must complete first.
The energy certificate (Energieausweis) is required when a building is built, sold or let, and rates buildings on a scale from A+ to H. Renovation and efficient heating are supported through the federal BEG programme (Bundesförderung für effiziente Gebäude).
The recast EPBD requires Germany, like every member state, to move its certificates to the common A to G scale and to set national thresholds for its non-residential stock and a trajectory for its homes.