International Innovation Network for the Development of Cost- and Environmentally Efficient Seasonal Thermal Energy Storages

Project Information

INTERSTORES

Grant agreement ID: 101136100

DOI

10.3030/101136100

EC signature date 24 November 2023

Start date 1 January 2024

End date 31 December 2027

Funded under

• Climate, Energy and Mobility

Total cost

€ 10 999 075,00

EU contribution

€ 9 537 362,50

Coordinated by

MARTIN-LUTHER-UNIVERSITAT HALLE-WITTENBERG
Germany

CORDIS provides links to public deliverables and publications of HORIZON projects.

Links to deliverables and publications from FP7 projects, as well as links to some specific result types such as dataset and software, are dynamically retrieved from OpenAIRE .

Deliverables

Documents, reports (1)

Monitoring concepts for sTES ambient domains

In INTERSTORES, new monitoring concepts for sTES environments will be developed and implemented. A summary of these concepts and, if applicable, of initial data obtained will be provided for the demonstration sites. They provide an initial outlook on the environmental monitoring data gained in INTERSTORES and may serve as a basis for other planners to design appropriate monitoring schemes.

Other (1)

Concepts for Innovative sTES

Documented concepts illustrate INTERSTORES' approaches and innovative concepts. They serve as a basis for the further development of materials, components and the operation of sTES and provide a first perspective on the optimization potential by the project.

Publications

Peer reviewed articles (10)

Influence of thermal energy storage basins on the subsurface and shallow groundwater

Author(s): Christoph Bott, Abdulrahman Dahash, Maximilian Noethen, Peter Bayer
Published in: Journal of Energy Storage, Issue 92, 2024, ISSN 2352-1538
Publisher: Elsevier Ltd
DOI: 10.1016/J.EST.2024.112222

Applied Energy

Author(s): Dominik Müller, Christoph Bott, Markku Hagström, Peter Bayer
Published in: Applied Energy, Issue volume 404, issue 127141, 2026, ISSN 0306-2619
Publisher: Elsevier Ltd.
DOI: 10.1016/J.APENERGY.2025.127141

Understanding buried dynamics: The relevance of pipe–ground interaction in thermal networks

Author(s): Simon Müller, Christoph Bott, David Schmitt, Peter Bayer, Tobias Schrag
Published in: Renewable and Sustainable Energy Reviews, Issue 239, 2026, ISSN 1364-0321
Publisher: Elsevier BV
DOI: 10.1016/J.RSER.2026.117114

Simulation-based planning for cost-effective and energy-efficient large-scale seasonal thermal energy storage systems

Author(s): Abdulrahman Dahash, Christoph Bott, Fabrizia Giordano, Ahmed Serageldin
Published in: Renewable Energy, Issue volume 258, issue 124813, 2026, ISSN 1879-0682
Publisher: Elsevier Ltd.
DOI: 10.1016/J.RENENE.2025.124813

Implementation of an expanding thermal source network as a step towards CO2-neutral industry

Author(s): Müller, Simon; Bott, Christoph; Schmitt, David; Faigl, Markus; Göttl, Klaus; Strobel, Rainer; Bayer, Peter; Schrag, Tobias
Published in: Energy, 2025, ISSN 1873-6785
Publisher: Elsevier Ltd.
DOI: 10.1016/J.ENERGY.2025.136766

Development of a reduced-order dynamic model for large-scale seasonal thermal energy storage applications

Author(s): Michael Bayer, Curtis Meister, Philipp Schuetz, Willy Villasmil, Heimo Walter, Abdulrahman Dahash
Published in: Energy, Issue 333, 2025, ISSN 0360-5442
Publisher: Elsevier BV
DOI: 10.1016/J.ENERGY.2025.137379

Influence of thermal energy storage basins on the subsurface and shallow groundwater

Author(s): Bott, Christoph; Dahash, Abdulrahman; Nöthe, Maximilian; Bayer, Peter
Published in: Journal of Energy Storage, 2024, ISSN 2352-1538
Publisher: Elsevier Ltd.
DOI: 10.25673/117916

Comprehensive life cycle assessment of selected seasonal thermal energy storage systems

Author(s): Jenny Weise; Christoph Bott; Kathrin Menberg; Peter Bayer
Published in: Renewable Energy, 2026, ISSN 1879-0682
Publisher: Elsevier Ltd.
DOI: 10.5445/IR/1000184000

Implementation of an expanding thermal source network as a step towards CO2-neutral industry

Author(s): Simon Müller, Christoph Bott, David Schmitt, Markus Faigl, Klaus Göttl, Rainer Strobel, Peter Bayer, Tobias Schrag
Published in: Energy, Issue 330, 2025, ISSN 0360-5442
Publisher: Elsevier BV
DOI: 10.1016/J.ENERGY.2025.136766

Analytical solution for the simulation of ground thermal conditions around planar trench collectors

Author(s): Adinda Van de Ven, Peter Bayer, Roland Koenigsdorff
Published in: Geothermics, Issue 124, 2024, ISSN 1879-3576
Publisher: Elsevier Ltd.
DOI: 10.1016/J.GEOTHERMICS.2024.103123

Conference proceedings (26)

Towards high thermal-to-hydraulic performance of heat exchangers for water-gravel thermal energy storage

Author(s): Abdulrahman Dahash, Fabrizia Giordano, Ahmed Serageldin, Emre Bas, Rainer Strobel
Published in: COMSOL Conference 2025, 2025
Publisher: COMSOL

Data-Driven Surrogate Models of Seasonal Thermal Energy Storage for MPC Applications – A Case Study on the Dronninglund Pit Storage

Author(s): Curtis Meister. Michael Bayer, Abdulrahman Dahash,Willy Villasmil, Heimo Walter, Philipp Schuetz
Published in: 11th International Conference on Smart Energy Systems, 2025
Publisher: Aalborg Universitet

Geological 3D modeling in crystalline bedrock for a cavern thermal energy storage site in S Finland - defining properties and parameters for deformation zones

Author(s): Kati M. Ahlqvist, Jon Engström, Sami Vallin, Markku Hagström
Published in: 2026
Publisher: Copernicus GmbH
DOI: 10.5194/EGUSPHERE-EGU26-4833

Thermische Auswirkungen großskaliger, geschlossener, saisonaler Kies-Wasser-Speicher

Author(s): Christoph Bott, Maximilian Noethen, Abdulrahman Dahash, Peter Bayer
Published in: Tagung der Fachsektion Hydrogeologie e.V. in der DGGV e.V. 2024, Issue 29, 2024
Publisher: Fachsektion Hydrogeologie e.V. in der DGGV e.V.

Simulation-based design of world’s largest cavern thermal energy storage: Optimization of VARANTO

Author(s): Abdulrahman Dahash, F. Giordano, K. Korhonen, Sammy Vallin, K. Ahlqvist, Markku Hagström
Published in: COMSOL Conference 2025, 2025
Publisher: COMSOL

The IN-Campus: A lighthouse site for re-used infrastructures as seasonal thermal energy storage

Author(s): Christoph Bott, Christoph Trinkl, Tobias Schrag, Simon Müller, Markus Faigl, Rainer Strobel, Peter Bayer
Published in: The 16th IEA EST CP International Conference on Energy Storage (Enerstock 2024), Issue 16, 2024
Publisher: INSAVALOR, Villeurbanne, France

Enhancing Efficiency and Feasibility of Large-Scale Thermal Energy Storage In District Heating

Author(s): Abdulrahman Dahash, Fabrizia Giordano, Ahmed Serageldin
Published in: BauSim Conference Proceedings, Proceedings of BauSim 2024: 10th Conference of IBPSA-Germany and Austria, Issue 10, 2024, ISBN 978-3-200-10068-8
Publisher: IBPSA-Germany and Austria
DOI: 10.26868/29761662.2024.18

Risk Assessment for Seasonal Thermal Energy Storage in District Heating Networks

Author(s): Ralf-Roman Schmidt, Nyasha Grecu, Gerhard Totschnig, Bernhard Mayr, Viktoria Illyés, Ina Maia-Novak, Abdulrahman Dahash
Published in: 11th International Conference on Smart Energy Systems, 2025
Publisher: Aalborg Universitet

Modern Benchmark of Adaptive Thermal Source Network at an Industrial Site – The incampus

Author(s): Simon Müller, Christoph Bott, Markus Faigl, Klaus Göttl
Published in: Book of Abstracts: 10th International Conference on Smart Energy Systems.
Publisher: Aalborg University, Denmark

Wärme- und Kältenetze der 5. Generation in der industriellen Energieversorgung – Herausforderungen und Potenziale am Beispiel des incampus

Author(s): Simon Müller, David Schmitt, Christoph Bott, Rainer Strobel, Markus Faigl, Peter Bayer, Tobias Schrag und Christoph Trinkl
Published in: Tagungsunterlagen (34.SYMPOSIUM SOLARTHERMIE UND INNOVATIVE WÄRMESYSTEME)
Publisher: Conexio-PSE GmbH

Integrating a Seasonal Thermal Energy Storage FMU in a MATLAB/Simscape Thermal Source Network Model

Author(s): Müller, Simon; Dahash, Abdulrahman; Akbar, Shariq; Schmitt, David; Bayer, Peter; Schrag, Tobias
Published in: Linköping Electronic Conference Proceedings, 2025
Publisher: Lucerne University of Applied Sciences and Arts (HSLU)
DOI: 10.25673/121618

Modeling multi-basin water-gravel thermal energy storages with STORE

Author(s): Christoph Bott, Peter Bayer
Published in: Modeling multi-basin water-gravel thermal energy storages with STORE, Issue 16, 2024
Publisher: INSAVALOR, Villeurbanne, France

Optimal integration of seasonal thermal energy storage within a thermal source network - The planning phase

Author(s): Shariq Akbar, Simon Müller, David Schmitt, Tobias Schrag, Abdulrahman Dahash
Published in: 11th International Conference on Smart Energy Systems, 2025
Publisher: Aalborg Universitet

Modeling and simulation of combined basin structures for seasonal thermal energy storage

Author(s): Christoph Bott, Peter Bayer
Published in: EGU General Assembly 2024, Issue 1482, 2024
Publisher: Copernicus GmbH (Copernicus Meetings)
DOI: 10.5194/EGUSPHERE-EGU24-1482

Recycling of subsurface heat loss from thermal energy storage basins through geothermal trenches

Author(s): Christoph Bott, David Hoffmann, Peter Bayer
Published in: EGU General Assembly 2025, 2025
Publisher: Copernicus GmbH

A modelling-based parametric assessment of sTES design and operation within a thermal source network

Author(s): Shariq Akbar, Simon Müller, Abdulrahman Dahash, Christoph Bott, David Schmitt, Christoph Trinkl, Peter Bayer, Tobias Schrag
Published in: Building Simulation Conference Proceedings, Proceedings of Building Simulation 2025: 19th Conference of IBPSA, Issue 19, 2025
Publisher: IBPSA
DOI: 10.26868/25222708.2025.1708

Techno-economic advantages of coupling large-scale sTES with heat pumps in district heating systems

Author(s): Abdulrahman Dahash, Ahmed Serageldin, Mustafa Kalfa, Reinhard Jentsch, Michael Luaermann
Published in: 11th International Conference on Smart Energy Systems, 2025
Publisher: Aalborg Universitet

Thermal Characterization of Crystalline Rocks for Cavern Thermal Energy Storage Application

Author(s): S. Vallin, P. Hakala, K. Ahlqvist, M. Hagström, T. Luoto
Published in: Sixth EAGE Global Energy Transition Conference & Exhibition (GET 2025), 2026
Publisher: European Association of Geoscientists & Engineers
DOI: 10.3997/2214-4609.202521067

Preparation of fracture data and delineation of bedrock domains for 3D DFN modeling of a cavern thermal energy storage site in Southern Finland

Author(s): Teemu Lindqvist, Kati Ahlqvist, Jon Engström, Markku Hagström
Published in: 2026
Publisher: Copernicus GmbH
DOI: 10.5194/EGUSPHERE-EGU26-4886

Cascading of sTES for optimal operation of DHC networks – Case study on a cooling dominated grid

Author(s): Michael Bayer, Artem Sotnikov, Curtis Meister, Abdulrahman Dahash, Philipp Schuetz, Heimo Walter, Willy Villasmil
Published in: 11th International Conference on Smart Energy Systems, 2025
Publisher: Aalborg Universitet

Model-based comparison of operation modes for water-gravel-filled multi-storage basins operated for seasonal thermal energy storage

Author(s): Peter Bayer, David Hoffmann, Christoph Bott
Published in: 2026
Publisher: Copernicus GmbH
DOI: 10.5194/EGUSPHERE-EGU26-18370

Design, construction, and scientific monitoring of a Reno-sTES

Author(s): Christoph Bott, Emre Bas, Abdulrahman Dahash, Fabrizia Giordano, Janik Trauner, Daniel Lager, Markus Faigl, Christian Schneider, David Hoffmann, Jenny Weise, Simon Müller, Shariq Akbar, David Schmitt, Christoph Trinkl, Tobias Schrag, Peter Bayer, Rainer Strobel
Published in: 2026
Publisher: Copernicus GmbH
DOI: 10.5194/EGUSPHERE-EGU26-18586

Optimizing the Operation of a Thermal Source Network Based on a Digital Twin Using Matlab/Simscape

Author(s): Simon Müller, Shariq Akbar, David Schmitt, Peter Bayer, Tobias Schrag
Published in: 11th International Conference on Smart Energy Systems, 2025
Publisher: Aalborg Universitet

Environmental impacts from constructing seasonal underground thermal energy storage systems

Author(s): Jenny Weise, Christoph Bott, Kathrin Menberg, Peter Bayer
Published in: EGU General Assembly 2025, 2025
Publisher: Copernicus GmbH

Methodological Development of a Reduced-Order Data-Driven Model from Detailed Numerical Simulations for Seasonal Thermal Energy Storage (STES)

Author(s): Michael Bayer, Curtis Meister, Artem Sotnikov, Abdulrahman Dahash, Philipp Schuetz, Heimo Walter, Willy Villasmil
Published in: Book of Abstracts: 10th International Conference on Smart Energy Systems., 2024
Publisher: Aalborg University, Denmark

The importance of structural geology in site characterisation of geoenergy and nuclear waste sites 

Author(s): Jon Engström, Kati Ahlqvist, Sami Vallin, Nikolas Ovaskainen, Nicklas Nordbäck
Published in: 2026
Publisher: Copernicus GmbH
DOI: 10.5194/EGUSPHERE-EGU26-3852