International Sustainable Energy Conference - Proceedings

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About the Conference Proceedings Series

The ISEC - Proceedings cover the proceedings of the international ISEC conference taking place every second year.

Current Conference Proceedings Volume

Vol. 2 (2026): ISEC 2026 – 4th International Sustainable Energy Conference

View Vol. 2 (2026): ISEC 2026 – 4th International Sustainable Energy Conference

Editors

Christian Fink, Conference Chair of ISEC and CEO of AEE – Institute for Sustainable Technologies, Austria

Christoph Brunner, Conference Chair of ISEC and CEO of AEE – Institute for Sustainable Technologies, Austria

Review Process

The papers are accepted for the conference on the basis of their abstract. The full papers do not undergo further review.

Published: 2026-04-17

Conference Dates: April 14 - April 16 2026

Conference Location: Messecongress Graz, Austria

Building the Future Energy Infrastructure

Governance, Financing, and Digitalisation to Reduce Non-Revenue Water (NRW): Adoption and Strategies (Case Study: Jakarta)

Reini Wirahadikusumah, Moammar Alzia Viqolbi, Hadi Kardhana
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Underground Thermal Energy Storage and its Impact on Groundwater Based on Experimental Mock-Ups

Florian Kainz, Matevž Vremec, Matthias J. Rebhan, Christoph Monsberger, Julian Schleicher, Gerfried Winkler, Roman Marte
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Future District Heating and Cooling

A MINLP Optimization Method to Solve Hydraulic Bottlenecks on Existing District Heating Networks

Anne-Geneviève Lemelle, Nicolas Lamaison, Nicolas Vasset, Jean-Michel Reneaume, Sylvain Serra
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Data-Driven Analysis of Energy Efficiency and Optimization Potentials in a Local Low-Temperature District Heating and Cooling System

Anna-Lena Fiedler, Marc Großklos
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Supply-Side Optimisation and P2H Sizing for a 2040 Net-Zero District Heating System: The Kapfenberg Case Transformation Planning With Industrial Waste Heat and Sector Coupling

Hakan Ibrahim Tol, Stefan Retschitzegger, Ingo Leusbrock, Elke Wieland
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An Overview of the Networking Potential of DHC Test Facilities IEA DHC Annex TS8 – Subtask C

Edmund Widl, Anna Marie Cadenbach, Kai Heussen, Senne Van Minnebruggen, Cosima Amanda Wörle, Michele Tunzi, Jad Al Koussa, Nermina Abdurahmanovic, Mohd Basit Wani, Oliver Gehrke
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The Potential of Agri-Solar Thermal Systems for Dual Land use Combining Agriculture and Large-Scale Solar Heat Generation

Fabian Feuchter, Michael Seiler, Thorsten Summ, David Schmitt, Daniel Navarro, Tobias Schrag, Wilfried Zörner, Christoph Trinkl
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The Importance of Asset Management of District Heating Pipes for the Implementation of Climate Goals in Europe

Stefan Hay, Raphael Schenkel , Christian Engel , Anna Marie Cadenbach, Andreas Leuteritz, Pakdad Langroudi , Ingo Kropp
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Development of Improved Heat Sources for a New Generation of Cold District Heating Systems

Peer Huber, Christian Lodroner, Christoph Wagner, Johannes Brunder, Harald Drück, Bernd Hafner, Ralf Dott, Konstantinos Stergiaropoulos
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Introduction to the Project innoBeLs Development and Assessment of Innovative Container Concepts for Latent Heat Stores in Cold Solar Heating Networks

Corinna Leonhardt, Stephan Lang, Harald Drück, Jonas Hilpert
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Assessing Model Sensitivities in District Heating Planning A Case Study Using a Python-Based Toolchain

Clara Pineau, Christian Wolff, Axel Oliva
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Parabolic Trough Collectors for Existing District Heating Networks A Simulation Comparison in TRNSYS

Silas Tamm, Magdalena Berberich, Dirk Krüger
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Novel Approaches in Data Usage, Digitisation, Modelling and System Assessment

Improving Supervision of Cooling Towers With Complementary Machine Learning

Lennart Heinen, Nicolas Réhault
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Design and Implementation of a Smart Solar Thermal Monitoring and Predictive Control System With Autonomous Fault Mitigation

Gorata Matsapa, Oboetswe S. Motsamai, Kevin N. Nwaigwe
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The Role of Organizational Learning and Knowledge Management for Successful BIM Integration in Lighting Design

Sascha Hammes, Johannes Weninger, David Geisler-Moroder, Johannes Strohm, Mathias Wambsganß
Optimization of CO₂ Emission Taxation in Switzerland Using Machine Learning

Huy-Duc Nguyen, David Wannier, Dominique Genoud
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Sustainable Fuels and Chemicals

From Biogas to Grid: Co-Electrolysis and Methanation for High-Yield Biomethane

Stefan Beringer, Julian Gruber, Stefan Sturm, Klara Treusch, Marie-Gabrielle Macherhammer, Vanja Subotić, Alexander Trattner
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Emerging Energy Technologies and System Integration

Grid-Forming Controllers in the Distribution Network Landscape

Andres Tarraso, Maximilian Prasser, Adolfo Anta
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Implementations and Novel Concepts in District Heating & Cooling

Hydrogen-Fuelled Combined Heat and Power for District Heating

Andreas Patha, Felix Hubmann, Bernhard Thaler, Clement Leroux
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Industrial Circular Economy Solution

Evaluating Circularity in Life Cycle Assessment based on the Case Study Re-Use Ziegelwand

Semjon Popek, Sonja Siegl, Severin Kysela, Hans Hafellner, Alexander Passer
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Innovations in the Use of Renewables and Waste Heat

Analysis of Marine and Industrial Condensing Steam Engine Performance for Low-Grade Waste Heat Recovery A Practical Solution in an Era of Super Technologies

Matthew Janssen
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Transformation in Buildings, Districts and Cities

From Heat Demand to Engagement: Mapping Socio-Technical Conditions for Urban Energy Planning An Exploratory, Multi-Scale Statistical Assessment of Heating System Age and Heat Demand Across Socio-Cultural Milieus

Timmy Schwarz
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Optimizing Energy in Single-Family Homes From Biomass Boilers to Heat Pumps

Astrid Leitner, Bernd Riederer, Andreas Moser, Daniel Muschick, Valentin Kaisermayer, Jakob Fuchsberger, Christopher Zemann, Markus Gölles
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