DGE-ROLLOUT - Roll-out of Deep Geothermal Energy in NWE

Project Summary

Our Vision

The vision of our project is to foster the expansion of deep geothermal energy as a climate and environmentally friendly energy resource in North-West Europe, and subsequently nurture the region´s economics and the wellbeing of the citizens.

Our Mission

DGE-ROLLOUT facilitates the use of deep geothermal energy as climate friendly energy resource to reduce CO2 emissions and to protect the environment in North-West Europe.

Our Key Messages

  • DGE-ROLLOUT facilitates the use of natural and stored heat from the deep underground to reduce CO2 emissions
  • DGE-ROLLOUT provides transparency of geothermal energy usage to the public
  • DGE-ROLLOUT supports new technologies for deep geothermal energy exploration and production
  • DGE-ROLLOUT provides information for stakeholders & investors of geothermal energy in North-West Europe
  • DGE-ROLLOUT explores and tests one of the most promising geothermal reservoirs in North-West Europe
  • DGE-ROLLOUT provides exploration and engineering support for deep geothermal energy usage



NWE has to reduce CO2 emission. One major source of CO2 is the production of electricity and heat by burning fossil fuels, which could be vastly replaced by using deep geothermal energy (DGE). However, the exploration of DGE in most NWE regions requires specific expertise and technologies in the complex geological situations (strongly faulted high permeable carbonates and coarse clastic rocks) that lie across the borders between Germany, France, the Netherlands and Belgium.

It is the objective of DGE-Rollout to produce energy and reduce CO2 emissions by replacing fossil fuels through the increased usage of DGE in NWE for large-scale infrastructures requiring high-temperature heat supplies to cover their basic energy loads. This will be achieved by mapping and networking (WP 1), by the application of innovative decision, exploration strategies (WP 2) and testing for production optimization (WP 3).

WP 1. Mapping and Networking to prepare the market: Providing and harmonizing the knowledge baseline of DGE to develop the market in NWE - including DGE resource potential, the market/investor correlation and the current legal frameworks. Obtaining an overall view through an online map application merging the baseline sources to identify regional investment hotspots according to investor profiles. DGE Network will be established to share experiences and build new interactions.

WP 2. Decision and exploration support: Create the basis for decisions to invest in DGE infrastructure and exploration strategies that are compared to the current methods cheaper, risks diminishing, more reliable by better finding the right spot to drill. Improvement of the DGE resource potential map. Development of an advanced exploration toolbox, decision flow chart for exploration, decision support chart and a standardized decision workflow check list, aiming to de-risk DGE projects in NWE.

WP 3. Testing for production optimization: Demonstration of innovative techniques under real-live conditions at two sites to develop and improve further production optimization (e.g. high temperature heat pumps) to use DGE more effective for enterprises in different branches (energy and heat suppliers, industrial and agricultural enterprises) for an immediate CO2 reduction. Developing of an implementation plan for the future transition of large, today fossil fuelled power plants to DGE in a case study.

In two pilots (Balmatt, BE; Bochum, DE) production optimization will be tested by implementing high-temperature heat pumps and new cascading schemes from high (>100°C, big network) to low tempatures (>50°C, single enterprise) and to gain a CO2 reduction of 25 000 t/a. By realising further plants in DE, FR, BE, NL this will reach up to 160 000 t/a until 2022. It is estimated that 10 years after the project’s end, at least 1 600 000 t/a reduction will have been achieved. In the long term, it is expected to reach up to 7 000 000 t/a.

Further activities will apply innovative decision and exploration strategies that cost less, reduce risks, are more reliable and will show a 3D Atlas of the complex geological situation as the spatial basis usable for DGE. To set the stage for increased public acceptance of DGE, tools, planning and legal conditions need to be evaluated and business models for enterprises undertaken. A network/cluster “NWE-DGE” will be set up to sustain the outputs and investments in the long term roll-out after the end of the project.

Project Partners

Lead partner

Organisation Address Email Website
Geological Survey of NRW 195 De-Greiff-Straße
martin.salamon@gd.nrw.de www.gd.nrw.de
Name Contact Name Email Country
DMT GmbH & Co. KG Boris Dombrowski boris.dombrowski@dmt-group.com Germany
EBN B.V. Timme van Melle timme.melle-van@ebn.nl Netherlands
Royal Belgian Institute for Natural Sciences Estelle Petitclerc epetitclerc@naturalsciences.be Belgium
International Geothermal Centre, Bochum University of Applied Sciences Frank Strozyk frank.strozyk@geothermie-zentrum.de Germany
RWE Power AG Thomas Oswald thomas.oswald@rwe.com Germany
The Netherlands Organisation for Applied Scientific Research Holger Cremer holger.cremer@tno.nl Netherlands
Technische Universität Darmstadt Jeroen van der Vaart jeroen.vaart@tu-darmstadt.de Germany
Flemish Institute for Technological Research Matsen Broothaers matsen.broothaers@vito.be Belgium
French geological survey Chrystel Dezayes c.dezayes@brgm.fr France


Sub- and Associated Partners

SP Ruhr-Universität Bochum (RUB), Bochum

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Sediment- and isotope geology at the RUB specifically contributes with comprehensive expertise in rock-water interactions and geochemical tracers of subsurface fluid flow, quantification of dissolution-precipitation parameters of authigenic minerals in the subsurface related to the circulation of hydrothermal fluids, and characterization of three-dimensional carbonate bodies in the subsurface and their spatial distribution of porosity and permeability patterns including fracture systems. Read More

AP Durham University

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Durham University will act as reviewer of DGE-ROLLOUT. Further Jon Gluyas of Durham University - an expert in the fluid transmissivity, permeability and porosity of ancient buried rock formations (reservoirs) including that of karst (cave) systems - will support the project with insider views and knowledge of geology and geothermal in the UK and IE. Read More

AP European Geothermal Energy Council

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EGEC, the European Geothermal Energy Council, is a non-profit international organisation founded in 1998 to promote the European geothermal industry and enable its development both in Europe and worldwide, by shaping policy, improving business condition, and driving more research and development. Based in Brussels, EGEC works with its members on policy, market intelligence, and communication, providing a link between the industry and European institutions. More than 120 members from 28 countries, representing more than 500 entities including developers, equipment manufacturers, electricity providers, national associations, consultants, research centres, geological surveys, and public authorities, make EGEC a unique network, uniting and representing the entire European geothermal sector. EGEC is an expert in networking and strategic consulting and will contribute their knowledge and experiences to the DGE-Rollout project by attending meetings and supporting with advice by the activities market evaluation and network expansion because it has a large number of high level contacts in industry that could help roll out geothermal energy in NWE region. EGEC acta as reviewer of DGE-ROLLOUT and supports the DGE-Rollout project with insider views and knowledge of the European geothermal energy sector. Read More

AP Geological Survey Ireland (GSI)

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The Department of Communications, Climate Action and Environment of the Geological Survey Ireland interacts with project partners on DGE potential mapping and characterisation in deep carbonate rocks, and reservoir characteristics of deep karst, as developed through parallel European and National projects. GSI will support their Irish, transregional and national networks with outputs and outcomes of DGE-ROLLOUT. Read More

AP unique Wärme GmbH & Co. KG

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Unique is a common public service provider founded by the Stadtwerke Bochum and the Ruhr-Universität Bochum. Starting in 2018 unique will provide heat and electricity for the southern part of Bochum via combined heat and power generation to replace the existing energy provision and save 26.000 t CO2 emissions per year. Read More

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