OpenModelica 2026

08:15-08:30 Registration and coffee

08:30-08.40 Lena Buffoni and Lennart Ochel (Linköping University and VTI, Sweden)

• Workshop Opening

Session 1 Chair: Martin Sjölund

08:40-09:00 Francesco Casella, Director of OSMC (Politecnico di Milano, Italy)

• Status and Directions of OpenModelica

09:00-09:45 Dirk Zimmer (DLR, Germany)

• Keynote. To what degree is a Modelica Compiler actually a Compiler?

09:45-10.10 Lennart Ochel (VTI, Sweden) and Arunkumar Palanisamy (Linköping University)

• News and Status about the FMI Standard and its Implementation in OMSimulator

10.10-10.35 Karim Abdelhak and Bernhard Bachmann (University of Applied Sciences Bielefeld, Germany)

• Compiler Status and Development of the New Backend

10:35-11:00 Coffee break

Session 2: Applications of OMC to heating, cooling and gas transport. Chair: Lennart Ochel

11.00-11.25 Sreenath Sukumaran, Siim Erik Pugal, Sylvester Ikenna Ofili and Anna Volkova

• Modelica based Simulation of District Cooling Systems Integrated with Snow Storage

11.25-11.50 Arne Speerforck, Jan Westphal

• A tool-chain for the development and simulation of large-scale district heating network models

11.50-12.15 Sergio Milo and Francesco Casella (Politecnico di Milano, Italy)

• Modelica-based Digital Twin for the Italian Natural Gas Network Infrastructure

12.15-13.30 Lunch break

Session 3 Advances in numeric and symbolic methods. Chair: Bernhard Bachmann

13.30-13.55 Felix Brandt, Philip Hannebohm and Bernhard Bachmann (University of Applied Sciences Bielefeld, Germany)

• Generation of Symbolic Adjoint Derivatives

13.55-14.15 Philip Hannebohm and Bernhard Bachmann (University of Applied Sciences Bielefeld, Germany)

• Efficient Model Evaluation with the GBODE multi-rate Solver

14.15-14.35 Linus Langenkamp and Bernhard Bachmann (University of Applied Sciences Bielefeld, Germany)

• Advancements in Numerical Methods for the GBODE Solver

14.35-15.00 Coffee break

Session 4: Applications of OMC to power and thermal systems. Chair: Francesco Casella

15.00-15.25 Joy El Feghali, Marco Chiaramello, Adrien Guironnet, Onur Alican, Miguel Alberto Carreño Galeano, Vinicius Lacerda, Juan Carlos Olives-Camps and Eduardo Prieto-Araujo

• On the Modeling Level for Power Electronics Interfaced Resources Interactions using Dynaωo Library in OpenModelica

15.25-15.50 Rüdiger Franke, Bernhard Hammer, Marcin Bartosz and Chen Song

• Operational experience with real-time optimization of a hybrid offshore grid and new directions with neural ODEs

15.50-16.15 Casper Luiten, Carlo De Servi and Francesco Casella

• Combined On-Design and Off-Design Modeling of Aerospace-grade Thermal Systems in Modelica

Panel Discussion Chairs: Lena Buffoni and Lennart Ochel

16.15-16.45 Panel discussion

• Future Directions of OpenModelica – Next 5 years and Next 20 years

16.45-17.00 Coffee Break

17.00-18.00 Open Source Modelica Consortium Annual Statutory Meeting