An in depth report has been revealed on the outcomes of exploration for deep geothermal sources within the cities of Duisburg and Düsseldorf in NRW, Germany.
The “Geothermal Rhine” undertaking has revealed an in depth report on the outcomes of the exploration work undertaken to judge the potential geothermal sources within the cities of Duisburg and Düsseldorf in North Rhine-Westphalia (NRW), Germany.
The total report (in German), “Deep geothermal vitality for Düsseldorf and Duisburg,” will be accessed through this hyperlink.
The technical and financial feasibility examine for the event of geothermal sources in Duisburg and Düsseldorf was first introduced in early 2023 underneath the “Geothermie-Rhein” inter-municipal undertaking. The joint feasibility examine was undertaken by the respective municipal utilities, Stadtwerke Düsseldorf AG and Stadtwerke Duisburg AG, together with Fraunhofer IEG, the College of Duisburg-Essen, and the Düsseldorf Airport.
As a way to advance the warmth transition, the state parliament of NRW handed the decision “Utilizing warmth potential – facilitating using geothermal vitality” in 2019. A element of the state parliament decision is the promotion of measures to discover and use geothermal district heating in NRW. Three tasks had been awarded a complete of EUR 1.5 million, with the Düsseldorf-Duisburg municipal cluster as one of many award winners.
Outcomes of the analysis
Gravimetric measurements had been made in each Duisburg and Düsseldorf to assist determine subsurface layers and vital fracture zones. This new information was then mixed with present information from the LIAG Institute for Utilized Geophysics, in addition to information from 2D seismic measurements carried out by the Geological Service of North Rhine-Westphalia.
The mixture of information from the completely different surveys allowed for the creation of a 3D subsurface mannequin which might now be used to create 3D depth maps to find out the depths of the Kohlenkalk and Massenkalk formations, that are potential host formations for geothermal sources.
Along with the geological situations and the related warmth potentials within the subsurface, the technical integration of geothermal vitality as a warmth supply for present networks in Düsseldorf and Duisburg was additionally investigated as a part of the Geothermal Rhine undertaking. Totally different warmth outputs and temperature ranges had been simulated within the community and the hydraulic results had been investigated.
Within the majority of the situations examined, the entire warmth from deep geothermal vitality will be built-in into the prevailing warmth
provide. For increased outputs of the warmth supply with increased temperatures, a storage choice is required in some variants so as to have the ability to exploit the total potential of geothermal vitality.
Subsequent steps
With this part of the undertaking accomplished, the 2 cities will perform additional exploration measures independently of one another. These additional measures goals to offer extra data on the precise present potential in every metropolis.
The goal horizons for geothermal lie deeper within the Duisburg area. To extra exactly map the goal subsurface formation, town utility is planning to conduct additional 2D seismic measurements.
In Düsseldorf, present information signifies attainable drilling places within the north area of town. Particular drilling places are being decided accounting for geologic suitability, amongst different standards.
Supply: Geothermie-Rhein
