LF Energy Summit Europe 2026

Dynawo is an Open-Source, production-level dynamic simulator developed by RTE, now in use for operations planning processes. It is also the reference tool for validating the compliance of new projects to grid code requirements in France. Dynawo comes with an extensive library of RMS models written in Modelica, including a complete suite of generic models (WECC, IEC) for inverter-based resources.

This Tutorial will benefit anyone who is interested in using and/or extending Dynawo's *model library* but is finding that Dynawo (the *simulator*) has a steep learning curve. In particular, we will be presenting new tools designed for facilitating the uptake of Dynawo's models, demonstrating a few use-cases:
* Usage within pure Modelica: solving the initialization problem
* Usage of Dynawo via PyPowSyBl: construction, manipulation, and visualization of (large) study cases
* Parameter-sweep studies
* Small-stability analysis

The tools take the form of Python and Julia Notebooks, designed to be flexible and easy to change by end-users. The session will also emphasize *understanding* these tools to encourage the customization and promote new creative solutions.

This hands-on tutorial will introduce VeraGrid’s open-source dynamic simulation capabilities for modern power system studies. Participants will learn how to build, run, and interpret dynamic simulations using both GUI-based and scripting workflows, making the session accessible to users with different levels of coding experience.

The tutorial will cover RMS simulation, EMT simulation, and small-signal analysis at both RMS and EMT levels. Attendees will work with out-of-the-box dynamic model templates and see how these can be extended into customized control builds for specific applications. They will also create simulation events and visualize their effect on system behaviour.

The tutorial features five presentations from experts contributing to the LF Energy CoMPAS project.

1.Driving CoMPAS Adoption with Better UX
Enhancing user onboarding, reducing training effort and minimizing errors throughout the engineering process.

2. Building an substation specification with CoMPAS
The presentation is focused on the role of top down engineering in Alliander's software defined substation initiative, their steps so far using CoMPAS, their lessons learned and their Outlook.

3. Quality You Can Trust: Raising the Bar for SCL Engineering
Introducing a new validation rules concept for higher SCL quality and efficiency.

4. Designed to Extend: How Developers Shape CoMPAS
Highlighting the design principles, extension points and best practices that enable developers to adapt CoMPAS to specific use cases, without compromising maintainability, upgradability or standards alignment.

5. Extend CoMPAS in Minutes: Build Your First Plugin (Live Coding Session)
By showcasing a real end-to-end example the session aims to demystify the development process, reduce entry barriers and empower new contributors to actively participate in the CoMPAS community.