Conference Agenda

Overview and details of the sessions of this conference. Please select a date or location to show only sessions at that day or location. Please select a single session for detailed view (with abstracts and downloads if available).

 
 
Session Overview
Location: Open Lounge
Room 3
Date: Tuesday, 18/Nov/2025
9:00am
-
10:40am
WS3: Opportunities, goals and challenges for geothermal energy in Frankfurt am Main
Location: Open Lounge
 
9:00am - 9:20am

25 Jahre Erkundung und Nutzung der oberflächennahen Geothermie in Frankfurt am Main – Erfahrungen, Daten und ein Ausblick

Katharina Kuper, Sven Rumohr

Hessisches Landesamt für Naturschutz, Umwelt und Geologie, Deutschland



9:20am - 9:40am

Die 1060 m tiefe Forschungsbohrung Rebstockbad in Frankfurt am Main - Ergebnisse und ihre Bedeutung für die Nutzung der mitteltiefen Geothermie im Stadtgebiet

Sven Rumohr, Johann.Gerhard Fritsche, Nucola Hug-Diegel, Benjamin Homuth, Jan Marx

Hessisches Landesamt für Naturschutz, Umwelt und Geologie, Deutschland



9:40am - 10:00am

Thermisch aktivierte Bohrpfähle – Lösung für die Innenstädte

Holger Kaiser

BAUER Resources GmbH, Deutschland



10:00am - 10:20am

Beispiele großer geothermischer Anlagen in Frankfurt am Main

Hubert Graf

NRTEC GmbH, Deutschland

11:10am
-
12:50pm
WS5: Construction and drilling technology in near-surface geothermal energy
Location: Open Lounge
Chair: Christoph Knepel
 

Kostensenkung in der Geothermie: Was für kleine Bohrdurchmesser nötig ist

Oliver Buschor

separatus AG, Schweiz



Bohrlochintegrierter, elektrischer Bohrroboter für die oberflächennahe Geothermie

Hans-Jörg Dennig

Borobotics AG, Schweiz



Diskussion

Christoph Knepel

BauGrund Süd Gesellschaft für Geothermie mbH, Deutschland

2:00pm
-
3:40pm
WS9: TRANSGEO – Reuse of hydrocarbon wells for geothermal energy: Results of the potential analysis in the North German Basin and the Molasse Basin
Location: Open Lounge
Chair: Katrin Sieron
 
2:00pm - 2:20pm

Begrüßung, Vorstellung des TRANSGEO-Projekts

Hannes Hofmann

GFZ Helmholtz-Zentrum für Geoforschung, Deutschland



2:20pm - 2:40pm

Technische Aspekte der Nachnutzung von Bohrungen

Hannes Hofmann

GFZ Helmholtz-Zentrum für Geoforschung, Deutschland



2:40pm - 3:00pm

TRANSGEO-Datenbank für Tiefbohrungen und Online-Tool zur Bohrungsauswahl

Katrin Sieron1, Monika Hölzel2

1: LBGR, Deutschland; 2: Geosphere, Österreich



3:00pm - 3:20pm

Potential der Bohrungsnachnutzung im Norddeutschen Becken und in der Molasse - Ausgewählte Regionen und Bohrungen für verschiedene geothermische Anwendungen

Monika Hölzel, Katrin Sieron

GeoSphere Austria, Österreich



3:20pm - 3:40pm

Nachnutzung von Kohlenwasserstoffbohrungen als tiefe Erdwärmesonden kann die Wärmewende in Norddeutschland voranbringen

Nora Koltzer1, M. Sporleder1, J. Schoenherr2, D. Teza1, F. Wellmann1,3

1: Fraunhofer Research Institution for Energy Infrastructures and Geotechnologies (IEG), Cottbus, Germany; 2: ExxonMobil Production Deutschland GmbH, Hannover, Germany; 3: RWTH Aachen University, Computational Geoscience, Geothermics and Reservoir Geophysics (CGGR), Aachen, Germany

4:10pm
-
5:50pm
WS9b: TRANSGEO – Reuse of hydrocarbon wells for geothermal energy: Results of the potential analysis in the North German Basin and the Molasse Basin
Location: Open Lounge
Chair: Katrin Sieron
 
4:10pm - 4:30pm

Tiefe Erdwärmesonde Mühlleiten 2 in der österreichischen Molasse - Ein Erfahrungsbericht der RAG Austria AG

Karoline Steixner

RAG Austria, Österreich



4:30pm - 4:50pm

Erkenntnisse aus dem Geothermieforum Niedersachsen zur geothermischen Nachnutzung von Kohlenwasserstoffbohrungen

Ingo Forstner

Bundesverband Erdgas, Erdöl und Geoenergie e.V., Deutschland



4:50pm - 5:50pm

Podiumsdiskussion

Katrin Sieron

LBGR, Deutschland

Date: Wednesday, 19/Nov/2025
11:10am
-
12:50pm
Spotlight on the Partner Country: UK-Forum 1 (engl.)
Location: Open Lounge
 
11:10am - 11:30am

Unlocking Geothermal through Cross-sector Collaborations and Global Partnerships

Charlotte Adams, Jon Gluyas, Iain Martin, Ryan Farquhar

National Geothermal Centre, United Kingdom



11:30am - 11:50am

Establishing a joint centre of excellence on engineered geothermal system (EGS) in Cornwall/Durham to enhance scientific /engineering aspects to mitigate climate change & implement a new technology worldwide

Roy Baria1, Hylke Glass2, Jon Gluyas3, Charlotte Adams3

1: EGS Energy Ltd, UK; 2: University of Exeter, UK; 3: Durham University, UK



11:50am - 12:10pm

The Geothermal Potential of the Worcester Graben, UK

Nicholas Hardy

HEC, United Kingdom



12:10pm - 12:30pm

A UK ‘Next Generation’ Geothermal Centre of Excellence: Unlocking Deep Geothermal Potential through Technology Innovation and Open Access Demonstration

Aleksandra Zawalna1, Caroline Carroll2, Jon Gluyas3, Stephen McDonald4

1: University of Exeter, United Kingdom; 2: Cornwall Council, United Kingdom; 3: Durham University, United Kingdom; 4: Durham County Council, United Kingdom



12:30pm - 12:50pm

Geobattery: Recycling waste heat into legacy mineworkings for low-carbon cooling and heat transmission

Ian Molnar1, Samuel P. Graham1, David B. Walls2, Michael V. Mourik2, Christopher I. McDermott1

1: University of Edinburgh, United Kingdom; 2: Townrock Energy, United Kingdom

2:00pm
-
3:40pm
Spotlight on the Partner Country: UK-Forum 2 (engl.)
Location: Open Lounge
 
2:00pm - 2:20pm

Heat recovery from low-enthalpy aquifers: Optimisation of doublet wells

Masoud Babaei1, Jon Gluyas2, Nigel Quinton3,4

1: University of Manchester, United Kingdom; 2: Durham University, United Kingdom; 3: National Geothermal Centre, United Kingdom; 4: Centre for Alternative Technology, United Kongdom



2:20pm - 2:40pm

Integrated Management of Scaling and Corrosion Challenges in High-Temperature Geothermal Systems

Khosro Jarrahian1,2, Eric Mackay2, Stephen Heath3, Mike Singleton2, Shabnam Mohammadi2, Frederick Pessu4

1: Global Petronas Research and Technology Centre, United Kingdom; 2: Institute of GeoEnergy Engineering, Heriot-Watt University, Edinburgh, EH14 4AS; 3: Creative Chemical Solutions Ltd, 47 Halkyn Road, Hoole, Chester, CH2 3QD; 4: School of Mechanical Engineering, University of Leeds, Leeds, LS2 9JT



2:40pm - 3:00pm

Net-zero: Modelling Heat Abstraction and Storage for Sustainable Energy Solutions; a Case study for MWES in Yorkshire, UK

Eshagh Goudarzi, Helen Turnell, Catarina Marques, Maria Centeno, Graeme Maidment

London South Bank University, United Kingdom



3:00pm - 3:20pm

Seamless Integration of Deep Geothermal Heat into 3rd and 4th Generation District Heating Networks – The Durham (UK) Cogeneration Demonstrator

Tim Lines1, Zack Moss2, Stephen McDonald3

1: Geothermal Wells UK Ltd, United Kingdom; 2: City Science, United Kingdom; 3: Durham County Council, United Kingdom



3:20pm - 3:40pm

Well Field Design for Cooling High-Performance Data Centres Using Water from legacy Coal Mines

Alejandro Perez1, Leah Swan2, Christopher McDermott1, Pablo Rodriguez Salgado3

1: University of Edinburgh, United Kingdom; 2: TownRock Energy; 3: University College Dublin

4:10pm
-
5:50pm
Spotlight on the Partner Country: UK-Forum 3 (engl.)
Location: Open Lounge
 
4:10pm - 4:30pm

Hydrogen energy and underground carbon retention by biogas-geothermal wellbore reforming reactor

Masoud Babaei1, Stuart Gillick2

1: University of Manchester, United Kingdom; 2: Metharc ApS



4:30pm - 4:50pm

Geothermal cooling: As Britain turns into a hot country—Using the subsurface for heating and cooling

Thomas Gruner1, Karen Spenley2

1: SLB Cambridge Research, United Kingdom; 2: Celsius Energy UK, United Kingdom



4:50pm - 5:10pm

Leveraging Oil & Gas Expertise to Unlock UK Geothermal Potential – The Salisbury NHS Project

Ross Glover, Rik Evans, Rachel Pickering, Marie Dransfield

Star Energy Group plc, United Kingdom



5:10pm - 5:30pm

From Essen to Gateshead: how the reuse of mines in Germany has inspired the future of geothermal energy in the UK and beyond

Sally Jack, David Walls

TownRock Energy, United Kingdom

Date: Thursday, 20/Nov/2025
9:00am
-
10:40am
Forum 10: Regionale Konzepte und Fallbeispiele der Tiefen Geothermie
Location: Open Lounge
 
9:00am - 9:20am

Fast forward to first heat - from seismic to full functioning facility in three years

Stephan Ghisler-Solvang, Andreas Beha

Innargi Deutschland, GmbH



9:20am - 9:40am

Vom Reservoir ins Wärmenetz: Erfolgsfaktoren und Herausforderungen mitteltiefer Geothermie in norddeutschen Kommunen

Evelin Pechan1, Stefanie Krug1, Simone Röhling1, Janis Bergmann2, Simon Richter2, Julika Weiß2, Lars Holstenkamp3, Johanna Jekel3

1: Bundesanstalt für Geowissenschaften und Rohstoffe (BGR), Deutschland; 2: Institut für ökologische Wirtschaftsforschung (IÖW) GmbH, gemeinnützig, Deutschland; 3: ECOLOG-Institut für sozial-ökologische Forschung und Bildung gGmbH, Deutschland



9:40am - 10:00am

DemoCELL – Geothermische Standortentwicklung im Großraum Celle

Matthias Franz1, Oliver Höhn2, Rüdiger Biedorf2, Fabian Käsbohrer1, Sven Krüger2, Inga Moeck1

1: Georg-August-Universität Göttingen, Deutschland; 2: Baker Hughes INTEQ GmbH Celle



10:00am - 10:20am

Der Kohlenkalk als geothermisches Reservoir in NRW – Neue Erkenntnisse zum Unterkarbon aus der Forschungsbohrung Krefeld

Stephan Becker, Bernd Linder, Sebastian Mighali, Ingo Schäfer, Sören Stichling

Geologischer Dienst NRW, Deutschland



10:20am - 10:40am

IGWN-LFZG – Innovative geothermische Wärmenetze in der Region Oberschwaben

Ernst Kiefer1, Roland Koenigsdorff2, Kathrin Menberg1, Birgit Müller1, Ingrid Stober3, Frank Schilling1, Stephan Volkmer2

1: Karlsuher Institut für Technologie; 2: Biberach University of Applied Sciences; 3: Universität Freiburg

11:10am
-
12:50pm
Forum 14: Petrothermale Systeme (EGS)
Location: Open Lounge
 
11:10am - 11:30am

Entwicklungen in EGS in den USA

Christian Gradl

Fervo Energy, United States of America



11:30am - 11:50am

SMART-EGS: Skalenübergreifende THM-Modellierung zur Optimierung von EGS-Systemen

René Kahnt1, Haimeng Shen2, Martin Herbst3, Markus Barsch1, Fikri Karim4, Hannes Hofmann2, Jörg Renner4, Arno Zang2, Heinz Konietzky3, Friederieke Tiedtka3, Marcel Schlegel1, Kristhian Pena Ceron4

1: G.E.O.S. Ingenieurgesellschaft mbH, Deutschland; 2: Geoforschungszentrum Potsdam; 3: Technische Universität Bergakademie Freiberg; 4: Ruhruniversität Bochum

2:00pm
-
3:40pm
Forum 18: Miscellaenous Topics (engl.)
Location: Open Lounge
 
2:00pm - 2:20pm

Tools for the implementation of raw material extraction from geothermal fluids: the CRM-geothermal AI Lithium estimation tool and Guidelines towards Social Licence to Operate

Katrin Kieling1, Simona Regenspurg1, Konstantinos Loupos2, Stathis Antoniou2, Paul Mitchell3, Rosanna Tufo4, Anna Seres5

1: Helmholtz Centre for Geosciences (GFZ); 2: Inlecom Innovation; 3: Green Horizons Environmental Consultants Ltd; 4: Levin Sources; 5: University of Miskolc



2:20pm - 2:40pm

Applicability of pygfunction for modelling deep coaxial borehole heat exchangers

Dmitry Romanov1, Ingela Becker-Grupe1, Amir Jodeiri2, Marco Cozzini2, Stefan Holler1

1: HAWK Hildesheim/Holzminden/Göttingen University of Applied Sciences and Arts, Faculty of Resource Management, Rudolf-Diesel-Straße 12, 37075, Göttingen, Germany; 2: EURAC Research, Institute for Renewable Energy, Viale Druso 1, 39100, Bolzano, Italy



2:40pm - 3:00pm

Artificial Intelligence in the Geothermal Sector: Practical Pathways and Real-World Applications

Sepehr Sangin1, Pejman Shoeibi Omrani2, Lorena Bello-Rujana1

1: University of Göttingen; 2: The Netherlands Organisation for Applied Scientific Research (TNO), Netherlands



3:00pm - 3:20pm

Feasibility study on the repurposing of the doublet well at the Groß Schönebeck research platform

Lingkan Finna Christi1,2, Ingo Sass1,3, Günter Zimmermann1,2, Hannes Hofmann1,2, Ben Norden1, Guido Blöcher1,2, Mrityunjay Singh1,3, Maximilian Frick1

1: GFZ Helmholtz Center for Geosciences, Telegrafenberg, 14473 Potsdam; 2: Technische Universität Berlin, Straße des 17. Juni 135, 10623 Berlin; 3: Technische Universität Darmstadt, Schnittspahnstraße 9, 64287 Darmstadt



3:20pm - 3:40pm

Enhancing Social Acceptance of Next-Generation Geothermal Technologies in Germany: from Skepticism to Support

Anastasia Sidorova, Nora Medgyesi, Fabian Uth

Geothermie-Allianz Bayern - Technische Universität München, Deutschland

4:10pm
-
5:50pm
Forum 22: Energy Storage and Disctrict Heating (engl.)
Location: Open Lounge
 
4:10pm - 4:30pm

On the value of integrated modeling and optimization approaches for planning Aquifer Thermal Energy Storage on the example of Berlin Adlershof

Elena Petrova1, Cornelius O. Schwarze1, Lioba Virchow1, Stefan Kranz1, Guido Blöcher1,2

1: GFZ Helmholtz Centre for Geosciences, Section 4.3: Geoenergy, Telegrafenberg, 14473, Potsdam, Germany.; 2: Department of Engineering Geology, Technical University of Berlin, 10587 Berlin, Germany



4:30pm - 4:50pm

Microbial Response to Thermal Energy Storage in Anoxic Saline Siliciclastic Aquifers

Julia Mitzscherling1, Martin Gitter2, Ferry Schiperski2, Thomas Neumann2, Dirk Wagner1,3

1: GFZ Helmholtz Centre for Geosciences, Section Geomicrobiology, 14473 Potsdam, Germany; 2: Technische Universität Berlin, Department of Applied Geosciences, Applied Geochemistry, 10587 Berlin, Germany; 3: University of Potsdam, Institute for Geosciences, 14476 Potsdam, Germany



4:50pm - 5:10pm

Geomechanical influence of reservoir permeability on supercharged hybrid gas-based energy storage

Daniel Bücken1,2, Tobias Backers1

1: Ruhr Universität Bochum, Germany; 2: geomecon GmbH, Berlin, Germany



5:10pm - 5:30pm

Das Fernwärmenetz in Bradford (UK) - eine Fallstudie

Luis Quiroga

Asper Investment Management, Vereinigtes Königreich



5:30pm - 5:50pm

Corrosion in the context of an ATES (Aquifer Thermal Energy Storage) borehole in a mesozoic high-salinity aquifer in Berlin-Adlershof

Laura Kranich1, Lioba Virchow1, Ralph Bäßler2, Stefan Kranz1, Simona Regenspurg1

1: GFZ Potsdam / FU Berlin, Deutschland; 2: Bundesanstalt für Materialforschung