In SimBench Sector, a data set is to be developed based on the results of the SimBench research project, which will enable realistic mapping of German gas and heating networks. Innovative use cases in the field of neighborhood development, the conversion of gas networks for hydrogen, or even cross-sector simulations make the development of gas and heating network components as part of a benchmark data set both sensible and necessary. In particular, future studies on coupled infrastructures in the context of the energy transition and its digitalization require consistent test networks in all sectors. SimBench Sector aims to provide the research community with a consistent dataset as open data for a comprehensive description of Germany’s grid-based energy supply. In addition to high spatial and temporal resolution, the innovation lies in the technically detailed modeling of equipment in today’s networks, but also in the modeling of innovative, future equipment.