News on OpenModelica

Openmodelica v1.26.3 released!

Wed, 25 Feb 2026 00:00:00 +0100

OpenModelica v1.26.3 is now released. This is a patch release for 1.26.2, we highly recommend to install it in place of previous releases.

Download Linux, Mac, Windows. Report bugs in GitHub.

Here are the release notes.

Openmodelica v1.26.2 released!

Wed, 11 Feb 2026 00:00:00 +0100

OpenModelica v1.26.2 is now released. This is a patch release for 1.26.1, we highly recommend to install it in place of 1.26.0 and 1.26.1.

Download Linux, Mac, Windows. Report bugs in GitHub.

Here are the release notes.

New GPG key

Tue, 27 Jan 2026 10:00:00 +0100

The GPG key used by OpenModelica to sign Debian / Ubuntu packages was updated to a newer and more secure hash algorithm. This means that in order to install or update OpenModelica users will need to update the key.

Affected OS:

Ubuntu, Debian

New Key

sec rsa4096 2026-01-27 [SC]
 5DE86CC050F6623BBA7995B864CE41328E03B30A
uid [ultimate] OpenModelica Build System <build@openmodelica.org>
ssb rsa4096 2026-01-27 [E]

Update

Overwrite the old key:

$ curl -fsSL https://build.openmodelica.org/apt/openmodelica-2026.asc | \
 sudo gpg --dearmor -o /usr/share/keyrings/openmodelica-keyring.gpg
# File '/usr/share/keyrings/openmodelica-keyring.gpg' exists. Overwrite? (y/N)
# y
$ sudo apt-get update

Rationale

If you encounter missing key errors like

$ sudo apt-get update
[...]
Warning: OpenPGP signature verification failed: https://build.openmodelica.org/apt trixie Release: Sub-process /usr/bin/sqv returned an error code (1), error message is: Missing key 5DE86CC050F6623BBA7995B864CE41328E03B30A, which is needed to verify signature.
Error: The repository 'https://build.openmodelica.org/apt trixie Release' is not signed.
Notice: Updating from such a repository can't be done securely, and is therefore disabled by default.
Notice: See apt-secure(8) manpage for repository creation and user configuration details.

or policy warnings like

$ sudo apt-get update
[...]
W: https://build.openmodelica.org/apt/dists/trixie/Release.gpg: Policy will reject signature within a year, see --audit for details

please update the OpenModelica gpg key.

The old public GPG key

pub rsa2048 2010-06-22 [SC]
 D229 AF1C E5AE D74E 5F59 DF30 3A59 B536 6497 0947
uid OpenModelica Build System <build@openmodelica.org>
sub rsa2048 2010-06-22 [E]

used by OpenModelica is using SHA1 as hash algorithm which is not considered secure. Some operating systems like Debian 13 (trixie) will reject the OpenModelica package signed with this outdated SHA1 algorithm starting on 2026-02-01.

Old key

In case the old key is needed, e.g. for older releases of OpenModelica, it can be found at build.openmodelica.org/apt/openmodelica-2010.asc.

Openmodelica v1.26.1 released!

Tue, 13 Jan 2026 00:00:00 +0100

OpenModelica v1.26.1 is now released. This patch release for 1.26.0 contains critical fixes to avoid OMEdit crashes and incorrect code generation. Please do upgrade to 1.26.1 if you have already installed 1.26.0.

Download Linux, Mac, Windows. Report bugs in GitHub.

Here are the release notes.

Openmodelica v1.26.0 released!

Thu, 18 Dec 2025 10:00:00 +0100

OpenModelica v1.26.0 is now released.

Download Linux, Mac, Windows. Report bugs in GitHub.

Here are the release notes.

Openmodelica v1.25.7 released!

Tue, 25 Nov 2025 10:00:00 +0100

OpenModelica v1.25.7 is now released.

Download Linux, Mac, Windows. Report bugs in GitHub.

Here are the release notes.

Openmodelica v1.25.0 released!

Fri, 04 Apr 2025 20:00:00 +0100

OpenModelica v1.25.0 is now released.

Download Linux, Mac, Windows. Report bugs in GitHub.

Here are the release notes.

Openmodelica v1.25.0-dev.beta.1 released!

Wed, 19 Mar 2025 20:00:00 +0100

OpenModelica v1.25.0-dev.beta.1 is now released.

Download Linux, Mac, Windows. Report bugs in GitHub.

Here are the release notes.

Openmodelica v1.24.4 released!

Tue, 04 Feb 2025 09:00:00 +0100

OpenModelica v1.24.4 is now released.

Download Linux, Mac, Windows. Report bugs in GitHub.

Here are the release notes.

OpenModelica 2025

Tue, 07 Jan 2025 00:00:00 +0000

17^th OpenModelica Annual Workshop - February 3, 2025

Supported by Open Source Modelica Consortium (OSMC) and Linköping University (LIU)

Final Program

08:00-08:30 Registration and coffee

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

Workshop Opening

Session Chair: Martin Sjölund

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

Compiler Status and Development of the New Backend

10:35-10:40 Coffee break

Session Chair: Lennart Ochel

10.40-11.05 Gilles Aouizerate, Joy El Feghali, Petros Aristidou, Sylvestre Prabakaran, Gautier Bureau, Baptiste Letellier, Julien De Sloovere, Florentine Rosiere and Marco Chiaramello (RTE - Réseau de Transport d’électricité, France)

An Open-Source Exercise Package for Electric Power System Teaching using the Dynawo Modelica Library

11.05-11.30 Jan Peter Axelsson (Vascaia AB, Sweden)

Experience with Google Colab for running Modelica FMU in notebooks and no installation

11.30-11.55 Francesco Casella (Politecnico di Milano), Teus van der Stelt (Asimptote BV) and Philip Hannebohm (HSBI)

Newton Diagnostics: a new handy tool for failing initialization debugging

11.55-12.20 Joy El Feghali, Gilles Aouizerate, Gautier Bureau, Julien De Sloovere, Baptiste Letellier, Sylvestre Prabakaran, Florentine Rosiere and Marco Chiaramello (RTE - Réseau de Transport d’électricité)

An Open-Source Implementation of WECC Battery Energy Storage Systems Models for Power System Stability Studies

12.20-13.15 Lunch break

Session Chair: Francesco Casella

13.15-13.40 Adrian Pop, OSMC Technical Coordinator (Linköping University)

Current Status and Technical Overview of OpenModelica and its Development Environment

13.40-14.05 Linus Langenkamp and Bernhard Bachmann (University of Applied Sciences Bielefeld, Germany)

Extending Direct Collocation-Based Dynamic Optimization with Adaptive Mesh Refinement

14.05-14.30 Philip Hannebohm and Bernhard Bachmann (University of Applied Sciences Bielefeld, Germany)

NeuralNetwork 3.0: A Library for representing PeNODEs in Modelica

14.30-14.55 John Tinnerholm (Linköping University)

Automatic Layout Generation and Translation of System Dynamic Models

14.55-15.05 Coffee break

Session Chair: Bernhard Bachmann

15.05-15.30 Claudio Stefano Bartolini, Mattia Amà, Stefano Baselice, Andrea Benelli and Samuele Bertuzzi (Politecnico di Milano, Italy)

Dynamics of mechanical press

15.30-15.55 Murali Krishna Pilli and A S Anand (Imagine Simulation Technologies Pvt. Ltd., India)

Optimization of Ethanolamines Production with OpenModelica & CasADi

15.55-16.15 Ao Zhang and Xiang Wang (Harbin Engineering University, China)

AESE Library Developed in OpenModelica: Simulation and Research for Nuclear Power Systems

16.20-16.50 Panel Discussion Chairs: Lena Buffoni and Lennart Ochel

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

16.50-17.00 Coffee Break

17.00-18.00 Open Source Modelica Consortium Annual Statutory Meeting

Openmodelica v1.24.0 released!

Wed, 09 Oct 2024 09:00:00 +0100

OpenModelica v1.24.0 is now released.

Download Linux, Mac, Windows. Report bugs in GitHub.

Here are the release notes.

Openmodelica v1.24.0-dev.beta.0 released!

Mon, 16 Sep 2024 09:00:00 +0100

OpenModelica v1.24.0-dev.beta.0 is now released. This is a preliminary release.

Download Linux, Mac, Windows. Report bugs in GitHub.

Here are the release notes.

Openmodelica v1.23.1 released!

Thu, 04 Jul 2024 09:00:00 +0100

OpenModelica v1.23.1 is now released. This is a minor release bringing fixes to some reported crashes in OMEdit.

Download Linux, Mac, Windows. Report bugs in GitHub.

Here are the release notes.

Openmodelica v1.23.0 released!

Thu, 06 Jun 2024 09:00:00 +0100

OpenModelica v1.23.0 is now released.

Download Linux, Mac, Windows. Report bugs in GitHub.

Here are the release notes.

Openmodelica v1.23.0-dev.beta.1 released!

Mon, 20 May 2024 09:00:00 +0100

OpenModelica v1.23.0-dev.beta.1 is now released.

Download Linux, Mac, Windows. Report bugs in GitHub.

Here are the release notes.

American Modelica Conference 2024!

Tue, 12 Mar 2024 09:00:00 +0100

American Modelica Conference 2024

Please consider participating in the American Modelica Conference 2024, which will be an in-person conference event, with an option to watch presentations streamed online for a reduced conference admission fee.

Openmodelica v1.22.3 released!

Mon, 11 Mar 2024 09:00:00 +0100

OpenModelica v1.22.3 is now released.

Download Linux, Mac, Windows. Report bugs in GitHub.

Here are the release notes.

Openmodelica v1.22.2 released!

Wed, 21 Feb 2024 09:00:00 +0100

OpenModelica v1.22.2 is now released.

Download Linux, Mac, Windows. Report bugs in GitHub.

Here are the release notes.

OpenModelica 2024

Mon, 05 Feb 2024 00:00:00 +0000

16^th OpenModelica Annual Workshop - February 5, 2024

Supported by Open Source Modelica Consortium (OSMC) and Linköping University (LIU)

Final Program

08:30-08:50 Registration and coffee

08:50-09.00 Adrian Pop and Martin Sjölund (Linköping University, Sweden)

Workshop Opening

Session Chair: Bernhard Bachmann (HSBI Hochschule Bielefeld, Germany)

09:00-09:30 Francesco Casella, Director of OSMC (Politecnico di Milano, Italy)

Status and Directions of OpenModelica

09:30-10:10 Francesco Casella, Director of OSMC (Politecnico di Milano, Italy)

Keynote. Using OpenModelica for bleeding-edge system simulations of large energy systems

10:10-10.35 Rüdiger Franke, Clemens Grindler (ABB AG, Germany)

Model-based Balance of Operation for Carbon Capture and Storage

10:35-10:50 Coffee break

Session Chair: Adrian Pop (Linköping University)

10:50-11:15 Jan Westphal, Arne Speerforck (Technical University of Hamburg – TUHH, Germany)

Modelling larger-scale district heating networks

11:15-11:40 Joy El Feghali, Gautier Bureau, Julien De Sloovere, Baptiste Letellier, Ian Menezes, Florentine Rosiere and Marco Chiaramello (RTE Réseau de transport d’électricité, France)

An Open-Source Implementation of IEEE Test Cases using a Simplified Time-Domain Approach for Steady State Calculations

11:40-12:05 Baptiste Mazurié, Audrey Jardin, Pascal Bailly, Adrian Luca, Didier Boldo (EDF Électricité de France, France)

Use of OpenModelica’s data reconciliation functionality to consolidate state estimation of industrial systems

12:05-13:15 Lunch break

Session Chair: Francesco Casella (Politecnico di Milano, Italy)

13:15-13:45 Adrian Pop, OSMC Technical Coordinator (Linköping University)

Current Status and Technical Overview of OpenModelica and its Development Environment

13:45-14:10 Karim Abdelhak and Bernhard Bachmann (HSBI Hochschule Bielefeld, Germany)

Status and Development of the New Backend

14:10-14:35 Andreas Heuermann (HSBI Hochschule Bielefeld, Germany)

CI/CD with OpenModelica for Library and Tool developers

14:35-15:05 Coffee break

Session Chair: Gerhard Schmitz (Hamburg University of Technology, Germany)

15:05-15:30 John Tinnerholm (Linköping University)

Modelica in the Julia Environment: Latest Developments and Prospects

15:30-15:55 Lena Buffoni (Linköping University)

OpenModelica use for forecasting in the MegaGame Energy Project

15:55-16:15 Adrian Pop (Linköping University)

OpenModelica integration with the CRML – Common Requirement Modelling Language

Session Chairs: Adrian Pop and Martin Sjölund (Linköping University)

16:20-16:50 Panel Discussion

Future Directions of OpenModelica and Modelica

16:50-17:00 Coffee Break

Session Chair: Peter Fritzson (Linköping University & St Anna IT Research Institute)

17:00-18:15 Open Source Modelica Consortium Annual Statutory Meeting

Session Chair: All

19:00 Dinner at Frimis (Scandic Frimurarehotellet)

Openmodelica v1.22.1 released!

Wed, 13 Dec 2023 16:40:00 +0100

OpenModelica v1.22.1 is now released.

Download Linux, Mac, Windows. Report bugs in GitHub.

Here are the release notes.

Openmodelica v1.22.0 released!

Wed, 08 Nov 2023 16:40:00 +0100

OpenModelica v1.22.0 is now released.

Download Linux, Mac, Windows. Report bugs in GitHub.

Here are the release notes.

OpenModelica 1.21.0 released!

Tue, 18 Apr 2023 17:10:00 +0100

OpenModelica 1.21.0 is now released.

Download Linux, Mac, Windows. Report bugs in GitHub.

Here are the release notes.

MODPROD 2023

Tue, 07 Feb 2023 00:00:00 +0000

OpenModelica 2023

Mon, 06 Feb 2023 00:00:00 +0000

Final Program

OpenModelica Annual Workshop February 6, 2023

Supported by Open Source Modelica Consortium (OSMC) and Linköping University (LIU)

08.15-08.30 Registration and coffe

08.30-08.40 Lena Buffoni and Lennart Ochel (Linköping University and VTI)

Workshop Opening

Session Chair: Bernhard Bachmann

08.40-09.00 Francesco Casella, Director of OSMC (Politecnico di Milano, Italy)

Status and Directions of OpenModelica

09.00-09.45 Francesco Casella, Director of OSMC (Politecnico di Milano, Italy)

Keynote. Simulation of large-scale Modelica models with array-preserving technology: early results and perspectives

09.45-10.10 John Tinnerholm, Francesco Casella and Adrian Pop (Linköping University and Politecnico di Milano)

Techniques for Modeling And Simulation of Dynamic Overcontrained Connectors

10.10-10.35 El-Mehdi Karmani, Mathilde Bongrain, Quentin Cossart, Adrien Guironnet and Marco Chiaramello (RTE, France)

Implementation and Validation of a Standard Static Var Compensator Model in Modelica Using OpenModelica

10.35-10.50 Coffee break

Session Chair: Martin Sjölund

11.50-11.15 Rodrigo Castro, Mariano Zapatero and Peter Fritzson.(University of Buenos Aires and CONICET and Linköping University)

A semi-automatic translator from System Dynamics to Modelica with application to socio-bio-physical systems

11.15-11.40 Nikhil Sharma, Kannan Moudgalya and Sunil Shah (Indian Institute of Technology Bombay and Modelicon Infotech LLP)

Modelica Library for Batch Chemical Processes

11.40-12.05 Nils Dressler and Lars Eriksson (Linköping University)

Implementation of a bolted joint model in Modelica

12.05-13.15 Lunch break

Session Chair: Francesco Casella

13.15-13.45 Adrian Pop, OSMC Technical Coordinator (Linköping University)

Current Status and Technical Overview of OpenModelica and its Development Environment

13.45-14.10 Bernhard Bachmann (University of Applied Sciences Bielefeld, Germany)

The Generic Bi-Rate Ordinary Differential Equation Solver in OpenModelica

14.10-14.45 Karim Abdelhak, Philip Hannebohm and Bernhard Bachmann (University of Applied Sciences Bielefeld, Germany)

Status and Development of the New Backend

14.45-15.05 Coffee break

Session Chair: Adrian Pop

15.05-15.30 Per Östlund and Adeel Asghar (Santa Anna Institute, Sweden)

15.30-15.55 Lennart Ochel (VTI Institute, Sweden)

OpenModelica Applications at VTI – The Swedish Road and Traffic Institute

15.55-16.20 Rüdiger Franke (ABB, Germany)

The role of green hydrogen and model-based applications for the energy transition

16.20-16.50 Panel Discussion Chairs: Lena Buffoni and Lennart Ochel

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

16.50-17.00 Coffee Break

17.00-18.00 Open Source Modelica Consortium Annual Statutory Meeting

OpenModelica 1.20.0 released!

Wed, 07 Dec 2022 13:13:43 +0100

OpenModelica 1.20.0 is now released.

Download Linux, Mac, Windows. Report bugs in GitHub.

Here are the release notes.

Asian Modelica Conference 2022

Thu, 24 Nov 2022 00:00:00 +0000

The Asian Modelica Conference 2022, November 24–25.

OpenModelica 1.20.0-dev.beta2 released!

Fri, 18 Nov 2022 00:00:00 +0000

OpenModelica 1.20.0-dev.beta2 is now released.

Download Linux, Mac, Windows. Report bugs in GitHub.

Here are the release notes.

American Modelica Conference 2022

Wed, 26 Oct 2022 00:00:00 +0000

Please consider submitting a paper to American Modelica Conference 2022! The deadline for paper sumbissions has been extended to 2022-05-23.

You can find the conference website here: https://2022.american.conference.modelica.org/.

OpenModelica 1.19.2 released!

Sat, 09 Jul 2022 00:00:00 +0000

OpenModelica 1.19.2 is now released.

Download Linux, Mac, Windows. Report bugs in GitHub.

Here are the release notes. This is a bug fix only release.

OpenModelica 1.19.0 released!

Wed, 01 Jun 2022 00:00:00 +0000

OpenModelica 1.19.0 is now released.

Download Linux, Mac, Windows. Report bugs in GitHub.

Here are the release notes.

OpenModelica 1.19.0-dev.beta1 released!

Wed, 20 Apr 2022 00:00:00 +0000

OpenModelica 1.19.0-dev.beta1 is now released.

Download Linux, Mac, Windows. Report bugs in GitHub.

Here are the release notes.

OpenModelica 2022

Mon, 31 Jan 2022 00:00:00 +0000

Final Program

OpenModelica Annual Workshop January 31, 2022

Supported by

Open Source Modelica Consortium (OSMC) and

Linköping University (LIU)

Registration was via Zoom (link removed)

Program

08.45-09.00 Web-meeting opens

09.00-09.10 Martin Sjölund and Adrian Pop (Linköping University and RISE Linköping, Sweden)

Workshop Opening

Session Chair: Bernhard Bachmann

09.10-09.30 Francesco Casella, Director of OSMC (Politecnico di Milano, Italy)

Status and Directions of OpenModelica

09.35-10.00 Karim Abdelhak and Bernhard Bachmann (University of Applied Sciences Bielefeld, Germany)

Status of the New Backend

10.00-10.25 John Tinnerholm, Adrian Pop (Linköping University and RISE Linköping, Sweden)

Language extensions to simulate Variable Structured Systems within a standard-compliant Modelica Compiler

10.25-10.50 Lluc Figueras Llerins, Vinicius Lacerda, Eduardo Prieto-Araujo, Adrien Guironnet and

Quentin Cossart (CITCEA-UPC Barcelona, Spain and RTE Réseau de Transport d’Electricité, Paris, France)

Modelling and Simulation of Power Systems with Grid-Connected Converters in OpenModelica

10.50-11.15 Coffee break

Session Chair: Lena Buffoni

11.15-11.40 Rüdiger Franke (ABB AG, Germany)

Use of OpenModelica in ABB OPTIMAX for model-based control and optimization of sustainable energy systems

11.40-12.05 Peter Fritzson (Linköping University and OSMC, Sweden), Shivam Bedar, Dinkar Verma, Sunil Shah (Modelicon, India),

Francesco Casella (Politecnico di Milano, Italy)

A Modelica library and scenarios for Sweden’s conversion from fossil powered to electric transportation

12:05 -12.30 Sören Kai Möller, Bernhard Bachmann and Rüdiger Franke (University of Applied Sciences Bielefeld and ABB AG, Germany)

Implementation of a Modelica library for modeling and simulation with neural networks in OpenModelica

12.30-13.30 Lunch break

Session Chair: Francesco Casella

13.30 -13.55 Adrian Pop, OSMC Technical Coordinator (Linköping University and RISE, Sweden)

Current Status and Technical Overview of OpenModelica and its Development Environment

13.55-14.20 Andreas Heuermann, Philip Hannebohm and Bernhard Bachmann (University of Applied Sciences Bielefeld, Germany)

Replacing Strong Components with Artificial Neural Network Surrogates in an Open-Source Modelica Compiler

14:20 -14.45 Digvijay Singh, Kannan Moudgalya and Arunkumar Palanisamy (Indian Institute of Technology Bombay, India and RISE, Sweden)

Interoperability between R and OpenModelica

14.45-15.05 Coffee break

Session Chair: Lennart Ochel

15.05 -15.35 Jan Peter Axelsson (Vascaia AB, Sweden)

Design aspects of FMU-explore a Python module to complement PyFMI

15.35 -15.55 Martin Sjölund (Linköping University, Sweden)

The OpenModelica Package Manager

15:55 -16.15 Peter Fritzson (Linköping University and OSMC, Sweden), Reshma R, Ajeya B, Sunil Shah (Modelicon, India),

Francesco Casella (Politecnico di Milano, Italy)

A Modelica library and scenarios for thermal and electric solar energy and storage for cities and buildings

16:20 -16.50 Panel Discussion Chairs: Adrian Pop and Martin Sjölund

Future Directions of OpenModelica [Minutes]

16.50-17.00 Coffee break

17.00-18.00 Open Source Modelica Consortium Annual Statutory Meeting

OpenModelica 1.18.1 released!

Thu, 23 Dec 2021 00:00:00 +0000

OpenModelica 1.18.1 is now released.

Download Linux, Mac, Windows. Report bugs in GitHub.

This is a bugfix release fixing these issues. Here are the release notes.

International Modelica Conference 2021

Mon, 20 Sep 2021 00:00:00 +0000

OpenModelica 1.18.0-dev.beta1 released!

Mon, 12 Jul 2021 00:00:00 +0000

OpenModelica 1.18.0-dev.beta1 is now released.

Download Linux, Mac, Windows. Report bugs in GitHub.

Here are the release notes.

OpenModelica 1.17.0 released!

Tue, 23 Mar 2021 00:00:00 +0000

OpenModelica 1.17.0 is now released.

Download Linux, Mac, Windows. Report bugs here.

Here are the release notes.

OpenModelica 1.16.4 released!

Mon, 22 Feb 2021 00:00:00 +0000

OpenModelica 1.16.4 is now released.

This is a bug fix release.

Download Linux, Mac, Windows. Report bugs in Trac.

Thank you to everybody that contributed!

MODPROD 2021

Wed, 03 Feb 2021 00:00:00 +0000

15th MODPROD Workshop on Model-Based Cyber-physical Product Development

Linköping University, February 3-4, 2021

“Digital engineering for a resource efficient and circular industry”

To see full program refer, https://modprodblog.files.wordpress.com/2021/02/modprod_program_2021-1.pdf

OpenModelica 2021

Tue, 02 Feb 2021 00:00:00 +0000

OpenModelica Annual Workshop February 2, 2021

Supported by

Open Source Modelica Consortium (OSMC) and Linköping University (LIU)

Registration is free of charge, click here

Program

08.15-08.30 Web-meeting opens

08.30-08.40 Lena Buffoni and Lennart Ochel (Linköping University and RISE Linköping, Sweden)

Workshop Opening

Session Chair: Bernhard Bachmann

08.40-09.00 Francesco Casella, Director of OSMC (Politecnico di Milano, Italy)

Status and Directions of OpenModelica

09.00-09.45 Francesco Casella, Director of OSMC (Politecnico di Milano, Italy)

Keynote. Is OpenModelica finally coming of age?

09.45-10.10 John Tinnerholm, Adrian Pop and Martin Sjölund (Linköping University and RISE Linköping, Sweden)

Modelica extensions for Highly Dynamic Systems via Julia and OpenModelica

10.10-10.35 Adrien Guironnet, Florentine Rosière and Gautier Bureau (RTE, France)

Dynaωo: A Suite of Power System Simulation Tools using Modelica and the OpenModelica Compiler

10.35-10.50 Coffee break

Session Chair: Martin Sjölund

10.50-11.15 Sai Kiran Samboju, Vivek Teja Tanjavooru, Daniel Zinsmeister and Vedran S. Perić (Technical University of Munich)

· Modeling of Combined Heat and Power Generation Unit for Dynamic Analysis of Integrated Thermal-Electric Grids

11.15-11.40 Jan Peter Axelsson (Vascaia AB, Sweden)

Design aspects of Bioprocess Library for Modelica

11.40-12.05 Barbara Zardin, Giovanni Cillo and Massimo Borghi (University of Modena and Reggio Emilia, Italy)

Modelling and simulation of positive – displacement machines with OpenModelica

12.05-13.15 Lunch break

Session Chair: Francesco Casella

13.15-13.40 Adrian Pop, OSMC Technical Coordinator (Linköping University)

Current Status and Technical Overview of OpenModelica and its Development Environment

13.40-14.05 Vishak Dudhee and Vladimir Vukovic (Teesside University, UK)

Simulation-Based Optimisation Coupling OpenModelica and GenOpt

14.05-14.30 Hubert Blervaque and Kods Grissa Nacib (EDF, France)

BuildSysPro library on OpenModelica: a compatibility case study

14.30-14.55 Nikhil Sharma, Kannan Moudgalya and Sunil Shah (Indian Institute of Technology Bombay and Modelicon Infotech LLP)

Modelica Library for Batch Distillation

14.55-15.05 Coffee break

Session Chair: Adrian Pop

15.05-15.30 Philip Hannebohm and Bernhard Bachmann (University of Applied Sciences Bielefeld, Germany)

· Symbolic Manipulation on Operator Records

15.30-15.55 Francesco Casella and Adrien Guironnet (Politecnico di Milano, Italy and RTE, France)

Experimenting OMC and --daeMode with large-scale grid models: status and perspectives

15.55-16.15 Karim Abdelhak and Bernhard Bachmann (University of Applied Sciences Bielefeld, Germany)

Efficient Handling of Arrays in the New Backend

16.20-16.50 Panel Discussion Chairs: Lena Buffoni and Lennart Ochel

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

16.50-17.00 Coffee Break

17.00-18.00 Open Source Modelica Consortium Annual Statutory Meeting

OpenModelica 1.16.2 released!

Mon, 21 Dec 2020 00:00:00 +0000

OpenModelica 1.16.2 is now released.

This is a bug fix release.

Download Linux, Mac, Windows. Report bugs in Trac.

Thank you to everybody that contributed!

OpenModelica 1.16.1 released!

Tue, 17 Nov 2020 00:00:00 +0000

OpenModelica 1.16.1 is now released.

This is a bug fix release.

Download Linux, Mac, Windows. Report bugs in Trac.

Thank you to everybody that contributed!

OpenModelica 1.16.0 released!

Sat, 24 Oct 2020 00:00:00 +0000

OpenModelica 1.16.0 is now released.

Download Linux, Mac, Windows. Report bugs in Trac.

Here are the release notes.

Thank you to everybody that contributed!

2020 Asian Modelica Conference

Thu, 08 Oct 2020 00:00:00 +0000

2020 Asian Modelica Conference, Sep 22-24

Tue, 22 Sep 2020 00:00:00 +0000

OpenModelica 2020

Mon, 03 Feb 2020 00:00:00 +0000

OpenModelica Annual Workshop February 3, 2020

Supported by

Open Source Modelica Consortium (OSMC) and Linköping University (LIU)

Registration

International participants (credit card only)

Swedish participants (invoice or credit card)

Program

08.00-08.30 Registration and coffee, outside room A2, A-building, LiU

Session Chair: Bernhard Bachmann

08.30-08.40 Workshop Chairs: Martin Sjölund and Adrian Pop (Linköping University and RISE SICSEast, Sweden)

Workshop Opening

08.40-09.00 Peter Fritzson, Director of OSMC (Linköping University, Sweden)

Status and Directions of OpenModelica

09.00-09.45 Francesco Casella, Vice Director of OSMC (Politecnico di Milano, Italy)

Keynote. Open-Source Modelling and Simulation of Innovative Power Generation Systems using OpenModelica: the case of the FlexiCal project

09.45-10.10 Rüdiger Franke, Chairman of OSMC (ABB AG, Germany)

Modelica in the Digital World

10.10-10.35 Andreas Heuermann and Bernhard Bachmann

Efficient Minimal Tearing of Hybrid Algebraic Loops for Large-scale System Simulation

10.35-11.05 Coffee and Poster Session

Session Chair: Lennart Ochel

11.05-11.30 Adrien Guironnet, Florentine Rosiere, Karim Abdelhak and Bernhard Bachmann (RTE, France; FH Bielefeld, Germany)

· Experience on the Use of OpenModelica DAE Mode for Industrial Power System Simulations

11.30-11.55 Sören Möller, Karim Abdelhak, and Bernhard Bachmann (FH Bielefeld, Germany)

Generation of Symbolic Hessian Matrices in OpenModelica

11.55-12.20 Santosh Desai, Ritesh Sharma, Vasu Goel, Vidhu Shah, Sunil Shah and Adeel Asghar (Modelicon, India; RISE SICS East, Sweden)

Virtual Automation Lab using Unity 3D and OpenModelica

12.20-13.30 Lunch at Kårallen

Session Chair: Francesco Casella

13.30-13.55 Adrian Pop, OSMC Technical Coordinator (Linköping University)

Current Status and Technical Overview of OpenModelica and its Development Environment

13.55-14.20 John Tinnerholm, Adrian Pop, and Martin Sjölund (Linköping University)

Experimentation with a Prototype OpenModelica Compiler in Julia

14.20-14.45 Herbert Schmidt and Silvia Hacia (Bochum University of Applied Sciences, Germany)

Influence of Iron Losses on Switching Dynamics of an Electromagnet from Experiment and Simulation

14.45-15.05 Coffee and Poster Session

Session Chair: Lena Buffoni

15.05-15.30 Lennart Ochel (RISE SICS East, Sweden)

· FMI Simulation, Co-Simulation, and Graphical Composition with OMSimulator in OpenModelica

15.30-15.55 Adeel Asghar, Rodrigo Castro, and Peter Fritzson (RISE SICS East; University of Buenos Aires, Linköping University)

Sensitivity Analysis and Non-linear Optimization with OMSens in OpenModelica

15.55-16.15 Francesco Casella and Adrien Guironnet (Politecnico di Milano, Italy; RTE, France)

A Library to Support Learning Power Systems Modeling with OpenModelica and OMEdit

16.20-16.50 Panel Discussion Chairs: Martin Sjölund and Adrian Pop

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

16.50-17.00 Break

17.00-18.00 Open Source Modelica Consortium Annual Statutory Meeting

19.00 Dinner

News on OpenModelica

Openmodelica v1.26.3 released!

Openmodelica v1.26.2 released!

New GPG key

New Key

Update

Rationale

Old key

Openmodelica v1.26.1 released!

Openmodelica v1.26.0 released!

Openmodelica v1.25.7 released!

Openmodelica v1.25.0 released!

Openmodelica v1.25.0-dev.beta.1 released!

Openmodelica v1.24.4 released!

OpenModelica 2025

17th OpenModelica Annual Workshop - February 3, 2025

Supported by Open Source Modelica Consortium (OSMC) and Linköping University (LIU)

Final Program

08:00-08:30 Registration and coffee

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

Session Chair: Martin Sjölund

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

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

09:45-10.10 Lennart Ochel (VTI, Sweden)

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

10:35-10:40 Coffee break

Session Chair: Lennart Ochel

10.40-11.05 Gilles Aouizerate, Joy El Feghali, Petros Aristidou, Sylvestre Prabakaran, Gautier Bureau, Baptiste Letellier, Julien De Sloovere, Florentine Rosiere and Marco Chiaramello (RTE - Réseau de Transport d’électricité, France)

11.05-11.30 Jan Peter Axelsson (Vascaia AB, Sweden)

11.30-11.55 Francesco Casella (Politecnico di Milano), Teus van der Stelt (Asimptote BV) and Philip Hannebohm (HSBI)

11.55-12.20 Joy El Feghali, Gilles Aouizerate, Gautier Bureau, Julien De Sloovere, Baptiste Letellier, Sylvestre Prabakaran, Florentine Rosiere and Marco Chiaramello (RTE - Réseau de Transport d’électricité)

12.20-13.15 Lunch break

Session Chair: Francesco Casella

13.15-13.40 Adrian Pop, OSMC Technical Coordinator (Linköping University)

13.40-14.05 Linus Langenkamp and Bernhard Bachmann (University of Applied Sciences Bielefeld, Germany)

14.05-14.30 Philip Hannebohm and Bernhard Bachmann (University of Applied Sciences Bielefeld, Germany)

14.30-14.55 John Tinnerholm (Linköping University)

14.55-15.05 Coffee break

Session Chair: Bernhard Bachmann

15.05-15.30 Claudio Stefano Bartolini, Mattia Amà, Stefano Baselice, Andrea Benelli and Samuele Bertuzzi (Politecnico di Milano, Italy)

15.30-15.55 Murali Krishna Pilli and A S Anand (Imagine Simulation Technologies Pvt. Ltd., India)

15.55-16.15 Ao Zhang and Xiang Wang (Harbin Engineering University, China)

16.20-16.50 Panel Discussion Chairs: Lena Buffoni and Lennart Ochel

16.50-17.00 Coffee Break

17.00-18.00 Open Source Modelica Consortium Annual Statutory Meeting

Openmodelica v1.24.0 released!

Openmodelica v1.24.0-dev.beta.0 released!

Openmodelica v1.23.1 released!

Openmodelica v1.23.0 released!

Openmodelica v1.23.0-dev.beta.1 released!

American Modelica Conference 2024!

American Modelica Conference 2024

Openmodelica v1.22.3 released!

Openmodelica v1.22.2 released!

OpenModelica 2024

16th OpenModelica Annual Workshop - February 5, 2024

Supported by Open Source Modelica Consortium (OSMC) and Linköping University (LIU)

Final Program

08:30-08:50 Registration and coffee

08:50-09.00 Adrian Pop and Martin Sjölund (Linköping University, Sweden)

Session Chair: Bernhard Bachmann (HSBI Hochschule Bielefeld, Germany)

09:00-09:30 Francesco Casella, Director of OSMC (Politecnico di Milano, Italy)

09:30-10:10 Francesco Casella, Director of OSMC (Politecnico di Milano, Italy)

10:10-10.35 Rüdiger Franke, Clemens Grindler (ABB AG, Germany)

10:35-10:50 Coffee break

Session Chair: Adrian Pop (Linköping University)

10:50-11:15 Jan Westphal, Arne Speerforck (Technical University of Hamburg – TUHH, Germany)

11:15-11:40 Joy El Feghali, Gautier Bureau, Julien De Sloovere, Baptiste Letellier, Ian Menezes, Florentine Rosiere and Marco Chiaramello (RTE Réseau de transport d’électricité, France)

11:40-12:05 Baptiste Mazurié, Audrey Jardin, Pascal Bailly, Adrian Luca, Didier Boldo (EDF Électricité de France, France)

12:05-13:15 Lunch break

Session Chair: Francesco Casella (Politecnico di Milano, Italy)

13:15-13:45 Adrian Pop, OSMC Technical Coordinator (Linköping University)

13:45-14:10 Karim Abdelhak and Bernhard Bachmann (HSBI Hochschule Bielefeld, Germany)

14:10-14:35 Andreas Heuermann (HSBI Hochschule Bielefeld, Germany)

14:35-15:05 Coffee break

Session Chair: Gerhard Schmitz (Hamburg University of Technology, Germany)

15:05-15:30 John Tinnerholm (Linköping University)

15:30-15:55 Lena Buffoni (Linköping University)

15:55-16:15 Adrian Pop (Linköping University)

Session Chairs: Adrian Pop and Martin Sjölund (Linköping University)

17^th OpenModelica Annual Workshop - February 3, 2025

16^th OpenModelica Annual Workshop - February 5, 2024