Research in RU5 addresses the Grand Challenge to secure the sustainable supply of georesources for future generations. Connecting scientific expertise across GFZ, we turn fundamental and applied research into practical outcomes. To this end, we investigate the key processes associated with the emplacement of energy resources and metal deposits in sedimentary, hydrothermal and magmatic systems on a geological time scale. In addition, we assess the physical, chemical and biological changes induced by the use of these georesources, the storage of substances and heat in the subsurface on a human time scale. Our work covers experiments from micro to reservoir scales including the operation of underground laboratories and numerical simulations. With this profile, Research Unit 5 contributes to topic 5 (‘Georesources’) of the program “Geosystem: The Changing Earth”, to topic ‘Geothermal Energy Systems’ in the program “Renewable Energies”, and to topic ‘Sea Floor Dynamics, Hazards, and Resources’ in the program “Oceans”.