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Roll-out of Deep Geothermal Energy in North-West Europe (DGE-ROLLOUT): Geothermal Energy Potential of Lower Carboniferous Carbonate Rocks

Deep geothermal energy (DGE) may play a crucial role in the future energy production considering its base load capacity and ubiquitous availability. The EU Interreg North-West Europe (NWE) funded project DGE-ROLLOUT aims to promote the hydrothermal potential of Lower Carboniferous carbonate rocks, which is investigated following a multi-disciplinary geoscientific approach.

Besides the Geological Survey of North Rhine-Westphalia as lead partner, project partners include the national geological surveys of Belgium, France and the Netherlands, as well as industry partners (DMT GmbH & Co. KG; Energie Beheer Nederland B.V.; RWE Power AG) and research institutions (Fraunhofer Institution for Energy Infrastructures and Geothermal Systems; Technical University Darmstadt; Flemish Institute for Technological Research). Sub- and associated partners include the national geological surveys of Great Britain and Ireland and the European Geothermal Energy Council, amongst others.

DGE-ROLLOUT comprises three administrative, one investment and three implementation work packages (WP T1-T3): T1 provides a reconciled knowledge baseline for the DGE market development in NWE, including a transnationally harmonised depth and thickness map of the Lower Carboniferous. T2 fills information gaps through the acquisition of 2D seismic surveys, drillings, reprocessing vintage seismic data, and developing 3D subsurface models. T3 increases the efficiency of existing geothermal systems, implementing new or improved production techniques regarding reservoir behaviour, cascading systems and thermal energy storage.

As DGE-ROLLOUT comes to an end in October 2023, we are keen on presenting our final results and evaluating the extent to which we succeeded in promoting the DGE potential of Lower Carboniferous carbonate rocks in NWE.


Tobias Fritschle1, Martin Arndt1, Kim Nokar1, Estelle Petitclerc2, Timme van Melle3, Matsen Broothaers4, Arianna Passamonti5, Martin Salamon1
1Geological Survey of North Rhine-Westphalia, De-Greiff-Straße 195, 47803 Krefeld, Germany; 2Royal Belgian Institute for Natural Sciences, Geological Survey of Belgium, Rue Jenner, 13, 1000-Brussels, Belgium; 3Energie Beheer Nederland B.V., Daalsesingel 1, 3511 SV Utrecht, The Netherlands; 4Flemish Institute for Technological Research, Boeretang 200, 2400 Mol, Belgium; 5Fraunhofer Institution for Energy Infrastructures and Geothermal Systems IEG, Lennershofstrasse 140, 44801 Bochum, Germany
GeoBerlin 2023