SWM GmbH faces the challenge of supplying the city of Munich with climate-friendly and secure energy in the future. It is increasingly relying on geothermal energy for its heat supply. A city-wide efficient operation includes an adapted heating infrastructure together with a sustainable reservoir management. The aim of the GEOmaRe project is to support the extensive conceptual and development tasks for the targeted 400MW of geothermal heat with technical and scientific work. As research partners the IAT (Institute of Plant Engineering, University of Bremen) for plant development, the LIAG (Leibnitz Institute for Applied Geophysics) for geophysical measurements and seismic processing and the Chair of Hydrogeology of the Technical University of Munich for hydrogeological geothermal issues are planned. Superordinate work deals with the concepts of heat availability and utilisation in the various metropolitan heating networks. In the above-ground part of the project (Geomatic), control and regulation techniques, control room concepts and operating models will be developed, in the underground part (reservoir engineering) drilling work will be carried out, extensive underground geophysical, geological and hydrochemical data will be collected and evaluated and integrated into various models.