LF Energy Summit Europe 2026

Join this demo session to explore Dynaωo, an open-source suite of time domain simulation tools for power systems. Through real-world use cases at full grid scale, we will showcase the tool’s current capabilities, including its ability to model complex grid behaviors, simulate disturbances, and analyze system stability. We will demonstrate how both academic and industrial users can quickly get started with Dynaωo, enabling them to leverage its powerful time domain simulation capabilities for their specific needs.
This session will highlight Dynaωo’s integration with PowSybl, another open-source tool under the Linux Foundation Energy umbrella, to demonstrate how seamless interface enhances workflows for researchers and industry professionals. Attendees will gain hands-on insights into Dynawo’s modular architecture, its flexibility for customization, and its potential for industrial applications.
Whether you are a developer, researcher, or grid operator, this demo will illustrate how Dynaωo can support your dynamic simulation needs while fostering collaboration within the open-source energy community.

PowSyBl is becoming more and more widely used by the power grid community. PyPowSyBl is the entry point to this ecosystem for a lot of users, bringing most of the functionalities of PowSyBl to Python development.

We propose to demonstrate both the core features of the package (network manipulation, loadflow computation, security or sensitivity analysis, visualization...) and give a glimpse into the more recently added features.

It will allow both new members of the community to discover how PyPowSyBl works and members already using it to know more about features they might not use and new ones.

Operating highly loaded grids in real time requires combining powerful topology optimisation with efficient handling of “linear” remedial actions. ToOp, developed by 50Hertz, is a state-of-the-art optimiser for topological measures, going beyond the topology optimisation currently available in OpenRAO.

In TopRAO, we couple ToOp with the Powsybl-based OpenRAO toolbox: OpenRAO optimises linear remedial actions (PST, redispatching, counter-trading, HVDC), while ToOp focuses on topological measures. Together, they form a real-time-capable RAO engine for security analysis at TSO and inter-TSO level.

This demo walks through an end-to-end workflow: importing network data, running joint optimization of topology and linear actions, and analysing resulting constraints, actions and costs using open, transparent components.