The objective of this project is the preparation and compilation of geological, geophysical and hydraulic data that are relevant for the planning of geothermal direct use facilities in Germany. The project focuses on areas and formations with geothermal potential that could be characterised in more detail or that are not yet covered by the geothermal information system GeotIS. These are for example the Bentheim sandstone in the Emsland or the Lower Bunter, which has better hydraulic properties at the edge of the North German Basin than in the centre of the basin. For these and other horizons, structural 3D models and maps of the expected hydraulic conductivity are to be developed.

Boundary layers and joint faces can also be important for the development of favourable reservoir properties. Therefore, fissures, faults and unconformities should be particularly considered in the investigation of geothermal resources. Since not every boundary layer or joint face implies an increase in permeability, modelling is an important tool for assessing geothermal potentials. All new data on the geothermal potentials of deep sediments are displayed in GeotIS in a suitable manner. In addition, an interactive e-learning portal is to be set up to provide information on the scientific and technical aspects of utilisation concepts for geothermal energy in Germany. The continuation of the work under the IEA Geothermal Implementing Agreement (GIA) is also planned.