Assessment of deep geothermal research and development in the Upper Rhine Graben

Deep geothermal energy represents a key element of future renewable energy production due to its base load capability and the almost inexhaustible resource base. Especially with regard to heat supply, this technology offers a huge potential for carbon saving. One of the main targets of geothermal pr...

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Bibliographic Details
Published in:	Geothermal energy (Heidelberg) 2022-12, Vol.10 (1), p.1-67, Article 18
Main Authors:	Frey, Matthis, Bär, Kristian, Stober, Ingrid, Reinecker, John, van der Vaart, Jeroen, Sass, Ingo
Format:	Article
Language:	eng
Subjects:	Carbonates Decision making Earth and Environmental Science Earth Sciences Exploitation Geoecology/Natural Processes Geology Geotechnical Engineering & Applied Earth Sciences Geothermal energy Graben Hydraulic properties Mesozoic Open data R&D Renewable and Green Energy Renewable energies Renewable energy Research & development Reservoir characterization Reservoirs Review Sandstone Sedimentary rocks Upper Rhine Graben
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Summary:	Deep geothermal energy represents a key element of future renewable energy production due to its base load capability and the almost inexhaustible resource base. Especially with regard to heat supply, this technology offers a huge potential for carbon saving. One of the main targets of geothermal projects in Central Europe is the Upper Rhine Graben, which exhibits elevated subsurface temperatures and reservoirs with favorable hydraulic properties. Several decades of intensive research in the region resulted in a comprehensive understanding of the geological situation. This review study summarizes the findings relevant to deep geothermal projects and thus provides a useful working and decision-making basis for stakeholders. A total of nine geological units have been identified that are suitable for deep geothermal exploitation, comprising the crystalline basement, various sandstone formations and Mesozoic carbonates. An extensive lithostratigraphic, structural, geochemical, hydraulic and petrophysical characterization is given for each of these potential reservoirs. This paper furthermore provides an overview of the available data and geological as well as temperature models.
ISSN:	2195-9706 2195-9706