Monday, 14 September 2026
09:30-10:00 | Chairperson | Becquerel Prize Ceremony
Stefan W. Glunz
13:30-15:00 | Oral Presentation | 1AO.4.2
UV-Induced Degradation of TOPCon and Heterojunction Solar Cells: Impact of Spectrum, Temperature, Intensity and Post-UV Treatments
Pascal Messmer, Benjamin Hammann, Tim Niewelt, Wolfram Kwapil, Paul Gebhardt, Martin C. Schubert, Florian Schindler
13:30-15:00 | Oral Presentation | 4AO.7.5
Field Evaluation of Irradiance Sensing and Transposition Approaches for Single-Axis Tracker Optimization Under Diffuse Sky Conditions
Maddalena Bruno, Lena Ackermann
13:30-15:00 | Chairperson | PV Module Design and Manufacturing
Max Mittag
13:30-15:00 | Visual Presentation | 3AV.1.5
Encapsulant Selection and Accelerated Lamination for TOPCon PV Modules: from Material Screening to Full-Size Validation
Aksel Kaan Öz, Christine Wellens, Angelika Beinert, Martin Heinrich, Laura Stevens
15:15-16:45 | Oral Presentation | 2AO.2.6
Contactless Determination of the Series Resistance of Tandem Solar Cells – Possibilities and Limitations
Johannes M. Greulich, Andreas Fell, Oliver Fischer, Martin C. Schubert, Stefan Rein
15:15-16:45 | Chairperson | Silicon Solar Cells; Hydrogen and Stability & Reduction of Silver Consumption
Florian Schindler
15:15-16:45 | Chairperson | PV Module Durability and Reliability
Paul Gebhardt
15:15-16:45 | Visual Presentation | 3AV.2.21
Investigating the Impact of Mounting Clamps and Frame Adhesive Joints on Glass Breakage of PV Modules
Pascal Romer, Andreas J. Beinert, Jochen Markert
17:00-18:30 | Oral Presentation | 2AO.3.4
Metastability through Ion Migration – Impact of Scan Speed and Temperature on Current-Voltage Curve Measurements
Thomas Schleyerbach, Alexander J. Bett, Johanna Modes, Benedikt Bläsi, Martin C. Schubert
17:00-18:30 | Visual Presentation | 3AV.3.25
Extension of Analytical Thermal Models to Assess Integrated Photovoltaics and Mobile Applications
Max Mittag, Alexander Protti, Christian Reichel, Holger Neuhaus
Tuesday, 15 September 2026
08:30-10:00 | Visual Presentation | 1BV.1.13
Improved Sustainability of Heterojunction Cells by Nanometer Pyramid Texturization for Silicon
Sebastian Pingel, Katrin Krieg, Stefan Schmidt, Winfried Wolke, Andreas Wolf, Jonas De Rose, Benedikt Bläsi
10:30-12:00 | Oral Presentation | 4BO.7.4
Design and Application of a Generalizable Time-Aware Intelligent Fault Detector for Commercial Photovoltaics: DEFNE v2
Mücahid Candan, David Melgar
10:30-12:00 | Oral Presentation | 3BO.12.4
Challenges in Predicting PV Module Degradation from Accelerated Aging Tests
Paul Gebhardt, Suraj Ravindrababu, Daniel Philipp
10:30-12:00 | Oral Presentation | 4BO.17.2
Flexible MorphoColor® Technology Integrated for Coloured Perovskite Solar Cells
Sophie Gledhill, Stefanie Ritter, Martin Mattenheimer, Andreas Wessels, Marjan Akbari Famileh, Markus Kohlstädt, Thomas Kroyer
13:30-15:00 | Visual Presentation | 4BV.3.8
Vehicle Integrated PV Potential for Europe – Results of a European Wide Measurement Campaign
Christian Braun, Moditya Gupta, Barbaros Inak
13:30-15:00 | Visual Presentation | 4BV.3.16
IEA PVPS Task 16 – Phase IV
Elke Lorenz
13:30-15:00 | Visual Presentation | 4BV.3.22
Evaluating Pyranometer Uncertainties with Novel Tools
Mariella Josefina Rivera Aguilar
15:15-16:45 | Oral Presentation | 1BO.4.2
Industry-relevant Plasma Oxidation Technologies for TOPCon-based Solar Cells
Jana-Isabelle Polzin, Silvère Dufour-Robbe, Ivonne Vera Pauta, Jeffrey Dobkowski, Philipp Ehnes, Mathias Bories, Marc Hofmann
15:15-16:45 | Oral Presentation | 1BO.4.3
Evaluating Curing Mechanisms in Copper Based Low-Temperature Metallization Pastes for Solar Cells
Oumaima Mhirsi, M. Noah Wengenmeyr, Jonas Bartsch
15:15-16:45 | Visual Presentation | 4BV.4.18
Colour-Accurate, Angle-Resolved Visualisation of BIPV Installations
Janina Willmann, Helen Rose Wilson, Bruno Bueno
15:15-16:45 | Visual Presentation | 4BV.4.25
Structural Durability and Performance Overview of PV Noise Barrier Projects in Lithuania
Pascal Romer, Andreas Beinert
17:00-18:30 | Oral Presentation | 2BO.10.4
From Lab Scale to High Throughput: Optimization of Spray Coating Processes for Silicon-Perovskite Tandem Solar Cell Manufacturing
Martin Zimmer, Lena Emmer, Ulrike Hatt, Melanie Frettloeh, Prabhithkumar Parapurath Subashkumar
17:00-18:30 | Oral Presentation | 3BO.15.2
Balancing Degradation and Recovery: Temperature Effects on UVID in TOPCon PV Modules
Paul Gebhardt, Angelika M. Beinert, Esther Fokuhl, Florian Schindler, Ingrid Hädrich, Mariella Rivera
17:00-18:30 | Oral Presentation | 4BO.5.6
Synergies between Vertical Bifacial PV and Green Roofs: Microclimate and Energy Balance Analysis
Ammar Tummalieh, Bruno Bueno, Fatima Abdelrhman, Andreas Beinert
Wednesday, 16 September 2026
08:30-10:00 | Plenary Presentation | CP.1.4
Designing and Manufacturing of a 34.21% World-record Efficiency Non-Concentrating Terrestrial PV Module with Optimized Optics and Shingle Interconnection of III-V Solar Cells
Laura Stevens, Leonhard Böck, Li Carlos Rendler, Marc André Schüler, Christian Reichel, Martin Heinrich
10:30-12:30 | Plenary Presentation | CP.2.3
Module Technology Innovations – Performance, Cost and New Market Applications
Dirk-Holger Neuhaus
10:30-12:30 | Plenary Presentation | CP.2.6
Time-Resolved Circular Energy Flows in TOPCon Solar Cell Production
Peter Brailovsky, Dilara Subasi, Wolfgang Kramer, Sebastian Mack, Baljeet Singh Goraya, Thomas Fluri, Nico Wöhrle, Sebastian Nold
13:30-15:00 | Oral Presentation | 1CO.1.2
Baseline for Edge Passivated TOPCon Shingle Solar Cells and (Matrix) Shingle Solar Modules
Elmar Lohmüller, Daniel von Kutzleben, Sabrina Lohmüller, Norbert Kohn, Alexander Göbel, Alexander Krieg, Sebastian Mack, Andreas Wolf, Marc Hofmann, Jale Schneider, Jörg Schube, Johannes M. Greulich, Jonas De Rose, Torsten Rößler, Achim Kraft, Holger Neuhaus, Florian Clement, Ralf Preu
13:30-15:00 | Oral Presentation | 1CO.1.3
Physics-informed Machine Learning for Solar Cell Diagnosis and Measurement Data Compression
Alexandra Wörnhör, Wilkin Wöhler, Andreas Fell, Ralf Preu, Stefan Rein, Matthias Demant
13:30-15:00 | Oral Presentation | 1CO.1.6
From Bimodal to Trimodal AgCu/Ag Microstructures: Tuning Percolation and Sintering for Low Temperature Solar Cell Metallization
Oumaima Mhirsi, M. Noah Wengenmeyr, Jonas Bartsch
15:15-16:45 | Chairperson | PV Module Materials and Processes for Sustainability
Max Mittag
17:00-18:30 | Chairperson | Innovation in PV Module Manufacturing
Henning Nagel
17:00-18:30 | Oral Presentation | 5CO.3.1
Analysis of the Practical Application of the Net Zero Industry Act
Max Mittag, Pamela Molina, Peter Brailovsky, Sebastian Nold, Holger Neuhaus
17:00-18:30 | Oral Presentation | 3CO.12.2
Impact of Ag-Diffusion into Sn-based Solder Alloys during Interconnection on the Reliability of TOPCon Solar Cells and Modules
Benjamin Grübel, Derya Güldali, Dirk Eberlein, Stephan Hoffmann, Achim Kraft
17:00-18:30 | Oral Presentation | 3CO.12.4
Anti-glare Module Glass Textures with Enhanced Light In-coupling
Benedikt Bläsi, Lasse Bienkowski, Janina Willmann, Martin Zimmer, Erdmut Schnabel, Andreas Brand, Marc Hofmann, Thomas Kroyer, Jan Nekarda
Thursday, 17 September 2026
08:30-10:00 | Oral Presentation | 2DO.6.4
Controlling Hybrid Route Perovskite Conversion via Substrate Surface Properties in Fully-Textured Perovskite/Silicon Tandem Solar Cells
Oussama Er-Raji, Sandhya Padmaraj, Bhushan P. Kore, Martin Bivour, Patricia S. C. Schulze, Stefan W. Glunz, Juliane Borchert
08:30-10:00 | Visual Presentation | 4DV.1.4
Image-based Phenology Monitoring to Optimize Agrivoltaic System Design and Tracker Operation in Vineyards
Dennis Kniel, Tamara Bretzel, Hannes Engler, Matthew Berwind
08:30-10:00 | Visual Presentation | 4DV.1.11
A High Resolution, Forecast-Enhanced Digital Twin for Agrivoltaic Trackers: Implementation and Orchard Trials
Bilal Abdul-Qayyoom Khalid, Maddalena Bruno, Tamara Bretzel, Leonhard Gfüllner, Matthew Berwind
08:30-10:00 | Visual Presentation | 4DV.1.34
PV2Float: Comparative Thermal and Performance Analysis of Three Floating PV Demonstrators and a Land Reference
Monica Nicola, Matthew Berwind
10:30-12:00 | Oral Presentation | 2DO.7.6
High-Efficiency Solvent-Free Solar Cells for Tandem Applications
Mohamed A. A. Mahmoud, Juan S. O. Vivas, Oliver Fischer, Stephan Riepe, Ulrike Hatt, Oussama Er-Raji, Martin Bivour, Martin Hermle, Stefan W. Glunz, Andreas W. Bett, Juliane Borchert
10:30-12:00 | Oral Presentation | 3DO.12.1
PV Module Layouts for Silicon Perovskite Tandem Solar Cells
Li Carlos Rendler, Leonhard Böck, Torsten Rößler, Christian Reichel, Martin Heinrich, Dirk-Holger Neuhaus
10:30-12:00 | Oral Presentation | 3DO.12.2
Module Efficiency of 31.3% with Monolithic III-V//Si Tandem Solar Cells using Automated Shingling Interconnection
Leonhard Böck, Jonas De Rose, Tadeo Schweigstill, Jan Benick, Ralph Müller, Torsten Rößler, Gerald Siefer, Holger Neuhaus, Frank Dimroth, Florian Clement, Oliver Höhn
10:30-12:00 | Oral Presentation | 4DO.17.1
STEWART: Science-based Environmentally Friendly Layouts for Floating PV
Karolina Baltins, Alexander Graef, Konstantin Ilgen, Esra Sirch
15:15-16:45 | Oral Presentation | 4DO.4.2
The Power of Agrivoltaic Control Systems to Achieve Required Crop Yield Limits
Leonhard Gfüllner, Matthew Berwind, Maddalena Bruno
15:15-16:45 | Oral Presentation | 5DO.14.4
Key Drivers of Low Environmental Impact Triple-Junction Perovskite/Perovskite/Silicon Tandem Modules at Industrial-Scale Manufacturing
Sebastian Nold
Fraunhofer Institute for Solar Energy Systems ISE