LF Energy Summit Europe 2026: Full Schedule

15 - 16 September | Berlin, Germany
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Note: The schedule is subject to change.

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08:00 CEST

Registration + Badge Pick-up

Tuesday September 15, 2026 08:00 - 18:00 CEST

Registration Desk/Entrance

Tuesday September 15, 2026 08:00 - 18:00 CEST
Registration Desk/Entrance

Special Events / Breaks / Registration

09:00 CEST

Keynote Sessions To Be Announced

Tuesday September 15, 2026 09:00 - 10:00 CEST

Main Stage

Tuesday September 15, 2026 09:00 - 10:00 CEST
Main Stage

Keynote Sessions

10:00 CEST

Morning Break

Tuesday September 15, 2026 10:00 - 10:30 CEST

Smart Cafe + Wunder Bar

Tuesday September 15, 2026 10:00 - 10:30 CEST
Smart Cafe + Wunder Bar

Special Events / Breaks / Registration

10:00 CEST

Solutions Showcase

Tuesday September 15, 2026 10:00 - 18:30 CEST

Smart Cafe + Wunder Bar

Tuesday September 15, 2026 10:00 - 18:30 CEST
Smart Cafe + Wunder Bar

Special Events / Breaks / Registration

10:30 CEST

Launch of OpenSTEF 4.0 - Daan van Es, Alliander

Tuesday September 15, 2026 10:30 - 11:00 CEST

Seebühne

openSTEF is launching a major new version at LF Energy this year: 4.0. In this presentation, co-hosted by SIA and Sigholm, we'll cover:

1. What and for whom is openSTEF, and what's new in 4.0 (me)
2. Creating the 4.0 documentation through genAI pipeline built in AWS (SIA)
3. Experiences from a community member who switched from 3.0 to 4.0 (Sigholm)

Speakers

Daan van Es

openSTEF TSC chair, Alliander

I work at Alliander to forecast the energy load for many points in our grid. We do so using openSTEF, for which I chair the Technical Steering Committee .

Tuesday September 15, 2026 10:30 - 11:00 CEST
Seebühne

Data + AI, Session Presentation

10:30 CEST

PowSyBl: TSO Cooperation Through Building Blocks - Nicolas Omont, Artelys & Alice Caron, RTE

Tuesday September 15, 2026 10:30 - 11:00 CEST

Waldbühne

During the last years, the PowSyBl ecosystem has expanded in many directions around the core module dedicated to grid data management, allowing the collaboration of an increasing number of organisations. As the workhorse of power systems, Open Load Flow is leading the adoption cycle with live projects for load flow, security analysis or sensitivity analysis at many TSOs and Coordination Centers. The advanced optimization tool OpenRAO is also a leading operational remedial action optimizer in Europe. Beyond computation modules, many users also adopted PowSyBl thanks to its easiness of use in day-to-day scripting through the python interface, and to grid and substation visualization features. The technical ecosystem is also widening with projects like the dynamic simulation module Dynawo and the grid study platform GridSuite. These last projects are open-source and are an open invitation to start cooperation. The session will provide an overview of the ecosystem, providing, for each module, the main features and use cases, the maturity status, and the roadmap. Eventually, through some examples, the way PowSyBl governance allows to start new cooperations will be presented.

Speakers

Nicolas Omont

VP Operations, Artelys

Nicolas Omont has more than 15 years of experience in Power Systems computation as an expert and a project manager. At Artelys and at RTE R&D department, he managed R&D projects to develop Power Systems tools for CIM CGMES data management, security analysis, remedial action optimization... Read More →

Alice Caron

Powsybl product owner, RTE

Work at RTE in the software development department. Started as a developer and then tech lead for 4 years and now working on the Powsybl project for 1year now as a product owner.

Tuesday September 15, 2026 10:30 - 11:00 CEST
Waldbühne

Modeling, Session Presentation

10:30 CEST

From Open-source Models To Production-grade Energy Planning Workflows - Harry van der Weijde, Open Energy Transition

Tuesday September 15, 2026 10:30 - 11:00 CEST

Crossover

Open source tools can improve transparency, collaboration, and speed in energy system planning, but real adoption requires more than publishing code. Drawing on work with system operators and energy institutions in Europe and Africa, this session shares practical lessons on turning open source models, data, and software into trusted planning workflows that organisations can use, maintain, and scale.

The session will focus on the transition from promising open source projects to production grade use in institutional planning contexts. It will cover the technical foundations needed for adoption, including enterprise grade applications, interoperability with existing tools, planning grade data infrastructure, reproducibility, and comparability across studies. It will also cover the institutional foundations: governance, maintenance, sustainable funding, long term support, training, and local capacity building.

The central argument is that adoption depends not only on code quality, but on trust. Energy institutions need confidence that open source workflows can integrate into existing processes, remain reliable over time, and be supported by credible communities and organisations.

Speakers

Harry van der Weijde

Head of Research and Market Development, Open Energy Transition

Dr. Harry van der Weijde is Head of Research and Market Development at Open Energy Transition, a non-profit working to transform the energy planning sector with open-source solutions. He is an expert in energy systems modeling and policy, with experience advising governments and private... Read More →

Tuesday September 15, 2026 10:30 - 11:00 CEST
Crossover

Open Source Strategy, Session Presentation

10:30 CEST

Demo by RTE of VIP’R R&D Project : Protecting a 63 KV Substation on SEAPATH With MultiVendor Solutio - Maxime Pelletier, RTE

Tuesday September 15, 2026 10:30 - 11:15 CEST

Elektro Stage

Building on the successful deployment of R#SPACE, which virtualizes substation automation functions, RTE launched the VIP’R R&D project to address a key question :
Can a 63 kV substation be reliably protected using virtual distance protection functions from different vendors (ABB and Schneider Electric) running on the open-source SEAPATH platform?

This demo will showcase IT and OT tests performed in RTE’s lab to demonstrate the real-time performance and deterministic behavior of the distance protection function within a SEAPATH cluster.
The session will include an open discussion with the audience on the test setup, results, methodology, and tools use with the participation of Schneider Electric.

Speakers

Maxime Pelletier

R&D Program Leader, Virtualization of PAC Systems – RTE, RTE

R&D Program Leader, Virtualization of PAC Systems – RTE

Tuesday September 15, 2026 10:30 - 11:15 CEST
Elektro Stage

Digital Substations, Demo Sessions

10:30 CEST

Tools for Facilitating Dynawo Usage - Jose Luis Marin, AIA ; Marco Chiaramello, RTE, Réseau de Transport d’Électricité; Clara Fernández Castañer, APLICACIONES EN INFORMATICA AVANZADA; Guiu Oms Font, AIA

Tuesday September 15, 2026 10:30 - 12:10 CEST

Back Stage

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.

Speakers

Guiu Oms Font

AI/ML Software Engineer, AIA

Guiu is an AI/ML Software Engineer with 5 years of experience deploying AI solutions, specializing in electric network simulation and validation. A top-ranked computer science graduate, their core expertise includes machine learning algorithms, deep learning, and computer vision... Read More →

Clara Fernández Castañer

Junior Consultant, APLICACIONES EN INFORMATICA AVANZADA

Clara Fernández Castañer holds a Ph.D. in Theoretical High Energy Physics from the Autonomous University of Barcelona. She is a consultant at Grupo AIA, where she works on R&D projects for the electric power sector, developing tools for power system modeling, simulation, and analysis... Read More →

Tuesday September 15, 2026 10:30 - 12:10 CEST
Back Stage

Modeling, Tutorial Sessions

11:05 CEST

PowSyBl: A Service Provider Business Model - Nicolas Omont, Artelys

Tuesday September 15, 2026 11:05 - 11:15 CEST

Waldbühne

This session presents Artelys' vision of a sustainable business model around the PowSyBl open-source framework for power system modelling.

The approach relies on a clear separation between strategic governance, technical steering and community contributions, enabling transparency and alignment across stakeholders (TSOs, RCCs, utilities, vendors). The roadmap is not imposed by a vendor but co-defined by contributors and users, who can influence priorities through governance bodies and structured collaboration.

From a business perspective, value is created through services: integration, custom developments, and especially long-term support & maintenance of shared modules. This model leverages mutualization: several users co-finance core components, ensuring sustainability of complex software while avoiding vendor lock-in.

The session will illustrate how open-source approach enables both flexibility for individual projects and efficiency at ecosystem scale.

Speakers

Nicolas Omont

VP Operations, Artelys

Tuesday September 15, 2026 11:05 - 11:15 CEST
Waldbühne

Modeling, Lightning Talk

11:05 CEST

Redispatch Without Black Boxes: Load Forecasting With OpenSTEF at E.ON - Alexander Geiseler, E.ON Digital Technology

Tuesday September 15, 2026 11:05 - 11:35 CEST

Seebühne

For reliable and cost-efficient distribution grid operation and redispatch management, accurate short-term forecasting is a core prerequisite. At E.ON, we originally relied on vendor-built “black box” forecasting solutions and experienced the familiar trade-offs: slow iteration cycles, limited transparency, and dependence on external roadmaps. In this talk, I’ll share our journey to an open-source target picture for transformer load forecasting in a redispatch context. After a quick intro to the redispatch problem and our system setup, I’ll walk through our OpenSTEF-based approach. I’ll then present results from a real benchmark against an external model and the practical lessons learned; what mattered, what didn’t, and where open source helped us move faster. Finally, I’ll cover the organizational path: how we navigated compliance and governance with our Open Source Office to turn from user into contributor.

Speakers

Alexander Geiseler

AI Software Engineer, E.ON Digital Technology

Alexander Geiseler is a seasoned AI Software Engineer at E.ON Digital Technology, focusing on forecasting and data-driven solutions for grid operations. He currently works on transformer-level load forecasting in the context of redispatch management and is actively driving the adoption... Read More →

Tuesday September 15, 2026 11:05 - 11:35 CEST
Seebühne

Data + AI, Session Presentation

11:05 CEST

From Research To Market: The Challenge Ahead for Research and Open Source - Antonello Monti, RWTH Aachen University; Ricardo Bessa, INESC TEC; Geethu Joseph, CRESYM; Elissaios Sarmas, EPU-NTUA; Ferdinando Bosco, Engineering Ingegneria Informatica Spa

Tuesday September 15, 2026 11:05 - 11:35 CEST

Crossover

The session will be structured as a combination of short presentations and a panel.
The idea is to debate the way through which research projects can reach commercial success with the support of open source. The debate will done with the support of experts that have been involved in relevant EU projects and that are committed to use open source as a way to build sustainable development after the funding period.
The idea is not only to debate the experiences but also to open the discussion on how to build the right conditions to have many success stories.

Speakers

Ferdinando Bosco

R&I Project Manager, Engineering Ingegneria Informatica Spa

Ferdinando Bosco is a Project Manager at Engineering Group’s R&I Department, with over 10 years of experience in advanced IT solutions for the energy sector. He holds a degree in Computer Engineering from the University of Palermo and has contributed to several European projects in... Read More →

Geethu Joseph

IT Asset- Project Manager & OSPO, CRESYM

Geethu Joseph is IT Asset Project Manager & OSPO at CRESYM, where she supports IT asset management and open-source collaboration across CRESYM and European energy-sector projects. With over 15 years of IT industry experience and a background in Computer Science and Engineering, she... Read More →

Ricardo Bessa

Coordinator of the Center for Power and Energy Systems, INESC TEC

IEEE Fellow, earned his 5-years in Electrical and Computer Engineering (2006), M.Sc. in Data Analysis (2008), and Ph.D. in Sustainable Energy Systems (2013) from the University of Porto. His research is focuse don AI and smart grids. He led projects like AI4REALNET and contributed... Read More →

Elissaios Sarmas

Senior Research Associate, EPU-NTUA

Elissaios Sarmas is a Senior Research Associate with the National Technical University of Athens (EPU-NTUA), specializing in the integration of artificial intelligence within energy systems. His research encompasses the development of machine learning models for energy management... Read More →

Antonello Monti

Professor, RWTH Aachen University

Antonello Monti received his Ph.D. degrees in electrical engineering from the Politecnico di Milano, Italy, in 1994. He started his career with Ansaldo Industria and then held different academic positions in Italy and USA. Since 2008, he has been the Director of the Institute for... Read More →

Tuesday September 15, 2026 11:05 - 11:35 CEST
Crossover

Open Source Strategy, Panel Discussion

11:15 CEST

Generation and Load Interconnection Studies in the US Using PowSyBl - Dio Stamatiadis, Piq Energy

Tuesday September 15, 2026 11:15 - 11:25 CEST

Waldbühne

Capacity screening studies help US generation and large-load developers evaluate project size against available network capacity. Once a project size is selected, system impact studies determine project-specific impacts and upgrade costs. Developers often need to run tens or hundreds of sensitivities to understand risk, compare sites, and navigate the interconnection process, making scale, speed, and accuracy critical. In the US, these studies are most commonly performed with commercial planning software. While open-source alternatives exist, they are still rarely used in industry-grade workflows.

We will show how we are incorporating PowSyBl into our power system analysis platform as an alternative engine for US studies. We will cover why we selected PowSyBl after evaluating other open-source options, what it took to adapt it to US planning conventions, how its results compare with commercial tools, and lessons learned bringing open-source power-system analysis into production workflows. We will also discuss where we plan to extend its use next, including broader study coverage, deeper workflow integration, and contributions back to the ecosystem.

Speakers

Dio Stamatiadis

Co-Founder and Chief Engineer, Piq Energy

Dio is co-founder and chief engineer at piq energy, where he builds power system analysis software for grid connection, renewable energy, large-load, and data centre integration studies. He has over 10 years of experience across power systems, automation, cloud infrastructure, data... Read More →

Tuesday September 15, 2026 11:15 - 11:25 CEST
Waldbühne

Modeling, Lightning Talk

11:25 CEST

How To Industrialize an Open Source Approach Around PowSyBl - Régis Le Drézen, Agnès Triponel & Sébastien Dinot, Sopra Steria

Tuesday September 15, 2026 11:25 - 11:35 CEST

Waldbühne

Transmission system operators face structural challenges: sovereignty, security, safety, efficiency, digitalization …
In this session, Sopra Steria shares a practitioner’s journey of embedding LF Energy’s PowSyBl into a real TSO production program for RTE. We cover two concrete contributions shipped to the open source community: decoupling the network-viewer component from any frontend framework (React/Angular agnostic), enabling simultaneous dual-value display (P active and Q reactive) on grid lines. Beyond the code, we discuss how an IT company structures its OSPO, open source governance (Licence Rules Book), and the cultural shift required to move from “consumer” to “contributor” in a critical infrastructure context.

Speakers

Régis Le Drézen

Partner Energy, Sopra Steria

Régis Le Drézen is a recognized expert in smart grids and energy transition. With over 20 years of experience at EDF, RTE and Enedis, he has led major innovation and infrastructure programs, including Smart Grid Vendée and e-mobility initiatives. Former Managing Director of Think... Read More →

Sébastien Dinot

Free and Open Source Expert, CS – Sopra Steria

Sébastien Dinot has been involved in open source software since 1998. He provides CS GROUP’s teams and clients with support across the four dimensions—technical, legal, social, and economic—of open source software. He helps them publish their open source projects, develop their... Read More →

Agnès Triponel

Scrum Master and Operational Project Manager, Sopra Steria

Scrum Master and project manager with 4 years of experience, I have built my career working on data, network, and cybersecurity projects, notably with major energy players such as Enedis and RTE. I operate in environments where agility plays a central role, often at the heart of transformations... Read More →

Tuesday September 15, 2026 11:25 - 11:35 CEST
Waldbühne

Modeling, Lightning Talk

11:25 CEST

Getting Started With SEAPATH: Faster Onboarding for New Users - Eloi Bail & Mathieu Dupré, Savoir-faire Linux

Tuesday September 15, 2026 11:25 - 12:10 CEST

Elektro Stage

As LF Energy SEAPATH adoption continues to grow across the energy ecosystem, making onboarding and first-time evaluation a key topic for new users and contributors.

This session will demonstrate how the SEAPATH community has streamlined the first-user experience to help newcomers get a functional SEAPATH instance running in their lab as quickly and smoothly as possible. Attendees will discover the latest onboarding improvements, including the refactored documentation, the new “Getting Started” experience, the SEAPATH Installer, and the different community resources available through the SEAPATH GitHub ecosystem.

Through a live demonstration, the session will guide users step by step from initial setup to a ready-to-use SEAPATH environment, while highlighting the tools and workflows that simplify experimentation, evaluation, and contribution. The presentation will also share lessons learned from community feedback and explain how these improvements are helping reduce the barrier to entry for industrial-grade virtualization in digital substations.

Speakers

Eloi Bail

Director of operations / LF Energy SEAPATH TSC Chair, Savoir-faire Linux

Eloi Bail is an embedded systems engineer and the first contributor to LF Energy SEAPATH and project TSC Chair since 3 years.

Mathieu Dupré

Linux expert. LF Energy SEAPATH maintainer, Savoir-faire Linux

Mathieu is a senior free software consultant and has a wide knowledge of Linux system from low layers such as Kernel space to higher layers like containers / virtualization. He has valuable experience on Linux system security, for both embedded systems and servers. Mathieu is one... Read More →

Tuesday September 15, 2026 11:25 - 12:10 CEST
Elektro Stage

Digital Substations, Demo Sessions

11:40 CEST

Closing Gaps From Commercial Tools in German Redispatch 2.0 With Open Source Tools - Jordanno Paiva, Accenture

Tuesday September 15, 2026 11:40 - 12:10 CEST

Seebühne

Redispatch volumes have increased enormously over the past year, creating new challenges for existing technologies, tools, and processes. These challenges become particularly visible in settlement and billing, which sit at the end of a long chain of operational and data-processing steps.

The use of multiple commercial tools from different vendors can make data access, process transparency, and adaptation to changing requirements difficult. To address this, Bayernwerk has started using open-source tools to improve data transparency and support error detection, correction, and analysis in the Redispatch 2.0 process.

The initial experiment was successful and, beyond the original use case, has attracted new users across the organization. Making data more openly available internally has enabled new applications across departments and contributed to a broader shift in how data is used.

The next challenge is to scale and industrialize these tools to meet growing internal demand, while integrating more advanced features where LF Energy and other open source tools can play an increasingly relevant role.

Speakers

Jordanno de Assuncao Paiva

Mr., Accenture

Jordanno Paiva is since two years Associate Manager in Digital Grids at Accenture Industry X, based in Cologne, Germany. With a background in Electrical Engineering Jordanno worked for 5 years in a leading Startup developing Digital Twin for electrical Grids and since joining Accenture... Read More →

Tuesday September 15, 2026 11:40 - 12:10 CEST
Seebühne

Cross-Cutting, Session Presentation

11:40 CEST

Scaling Grid Security With Open Source - Hugo Pfister & Jorn van der Landen, TenneT Netherlands

Tuesday September 15, 2026 11:40 - 12:10 CEST

Waldbühne

The power grid is changing fast, and the systems behind it are under pressure. More data, tighter timeframes, increasing congestion, and regulatory requirements are pushing traditional grid security tools beyond their limits. At TenneT Netherlands, legacy tooling was simply no longer fast and adaptable enough to keep up with this new reality.

By combining the open source PowSyBl framework with a cloud-native orchestration platform (ReFlow), TenneT rebuilt its grid security analysis from the ground up. The result is a step change in performance and capability: reducing calculation runtimes from minutes to seconds and enabling a fundamentally different way of working.

This session will show how we:

- Moved from monolithic legacy tooling to a modular, scalable architecture
- Used open source to accelerate delivery and avoid vendor lock-in
- Established what it takes to run open source in a mission-critical environment
- Strengthened operator support by providing an integrated view across analyses through modular design

Speakers

Hugo Pfister

Manager Systems & Markets, TenneT Netherlands

Hugo Pfister is a people and technology leader at TenneT Netherlands, focused on simplifying complexity in mission-critical systems to enable effective, scalable, and innovative ways of working. He is an active open source advocate, driving adoption within TenneT and across international... Read More →

Jorn van der Landen

Business IT Specialist, TenneT Netherlands

I work as a Business IT Specialist within the Grid Security domain at TenneT, where I focus on connecting business, IT, and innovation. I am passionate about driving new technological developments and believe in a fit-for-purpose approach, where capabilities, flexibility, and speed... Read More →

Tuesday September 15, 2026 11:40 - 12:10 CEST
Waldbühne

Modeling, Session Presentation

11:40 CEST

Resilience, Redefined: What Software-Defined Grids Means for European Sovereignty - Astor Nummelin Carlberg, SUSE

Tuesday September 15, 2026 11:40 - 12:10 CEST

Crossover

Grid resilience is not a new idea. European energy systems have been built for stability, interoperability, and cross-border operation for generations, long before "digital sovereignty" became a policy priority. Energy was at the very heart of European integration from the beginning.

As the grid becomes software-defined, resilience takes on a new dimension. What does continuity of operation mean when critical infrastructure depends on software? And what does the energy sector's knowledge of large-scale, stable transitions offer to the European digital sovereignty debate?

The energy sector sits at a unique intersection: highly regulated, yet positioned to lead other critical sectors. It already operates at continental scale with common standards and complex governance. Interoperability is not a preference here—it is a structural necessity.

The Strategic Roadmap for Digitalisation and AI in Energy is part of the European Commission's Tech Sovereignty Package. This session explores what energy sector expertise in resilient, interoperable, open infrastructure can offer the EU's sovereignty agenda, and what this industry’s leadership might look like in practice.

Speakers

Astor Nummelin Carlberg

Director, Open Source Sovereignty, SUSE

Astor Nummelin Carlberg is a senior strategist operating at the intersection of digital infrastructure and European public policy. As Director of Open Source Sovereignty at SUSE, he leads engagement with European institutions to advance a secure and transparent digital future. Formerly... Read More →

Tuesday September 15, 2026 11:40 - 12:10 CEST
Crossover

Open Source Strategy, Session Presentation

12:10 CEST

Lunch

Tuesday September 15, 2026 12:10 - 13:10 CEST

Smart Cafe + Wunder Bar

Tuesday September 15, 2026 12:10 - 13:10 CEST
Smart Cafe + Wunder Bar

Special Events / Breaks / Registration

13:10 CEST

Connecting LF Energy’s Projects: A Mini-City Prototype for the Digital Grid Ecosystem - Darshan Chawda & Nao Nishijima, Hitachi, Ltd.

Tuesday September 15, 2026 13:10 - 13:40 CEST

Seebühne

LF Energy has a growing ecosystem of open-source projects for forecasting, digital substations, data-driven operation, and more. However, for many users, one question remains difficult: how do these projects fit together in a realistic digital grid workflow?
Over the past year, we explored many LF Energy projects and analyzed how they can work as parts of a larger grid ecosystem. Based on this, we're building a miniature city-grid prototype in our research lab that connects different projects across a shared operational chain. For example, one workflow starts with load and renewable forecasting, uses grid-model calculations to assess network impact, and surfaces the resulting event to an operator workflow.
The session will include a demo walkthrough using recorded lab segments, architecture diagrams, and data-flow examples. It will show how projects such as OpenSTEF, SEAPATH, PowSyBl, OpenGridFM, and OperatorFabric can fit within the same architecture. Attendees understand where to start, what role each project can play individually, and how they can be connected to solve practical digital grid problems. The session will also highlight integration gaps for community discussion.

Speakers

Nao Nishijima

Chief Researcher, Hitachi, Ltd.

He has been involved in the architecture, design, and engineering of open source systems and actively engaged in open source development for most of his 10+ years of career. He is currently engaged in the research and development of cloud native and platforms services and contributes... Read More →

Darshan Chawda

Senior Researcher, Hitachi, Ltd.

I am a senior researcher focused on digital transformation in the energy sector, with a particular interest in open source, AI, and emerging technologies. My work centers on accelerating innovation within the LF Energy ecosystem by exploring how different open-source projects can... Read More →

Tuesday September 15, 2026 13:10 - 13:40 CEST
Seebühne

Cross-Cutting, Session Presentation

13:10 CEST

Building OSPOs in Practice: Early Lessons From Cresym, 50Hertz / Elia and TenneT - Jonas van den Bogaard, Alliander; Sven Fritzsche, Elia Group - Elia Belgium and 50 Hertz; Geethu Joseph, CRESYM; Hugo Pfister, TenneT Netherlands

Tuesday September 15, 2026 13:10 - 13:40 CEST

Crossover

As the energy sector undergoes rapid digital transformation, Open Source Program Offices (OSPOs) are emerging as strategic enablers within grid operators. Building open source readiness requires more than just technical adoption. It demands cultural and operational transformation. From aligning legal, finance, and executive leadership to equipping engineering teams with the right tools and practices, OSPOs play a critical role in guiding this shift.

This panel brings together OSPO leaders from Cresym, 50Hertz / Elia, and TenneT to explore how open source is reshaping collaboration, innovation, and the digital landscape in the utility sector. As several of these OSPOs are relatively new, the discussion will offer fresh perspectives on the challenges and opportunities of establishing and scaling such capabilities. Panelists will share firsthand experiences in launching and growing OSPOs, navigating internal alignment, and fostering cross-organizational collaboration.

Moderator:
Jonas van den Bogaard, Alliander - confirmed

Speakers:
Geethu Joseph, Cresym
Sven Fritzsche, Elia / 50Hertz
Hugo Pfister, TenneT

Speakers

Jonas van den Bogaard

Open Source Office Lead, Alliander

Jonas van den Bogaard is a Digital Strategy Lead at Alliander, a distribution system operator (DSO) in the Netherlands. Alliander provides reliable, affordable, and accessible energy transport and distribution to a large part of the Netherlands. Open source has proved to be an enabler... Read More →

Geethu Joseph

IT Asset- Project Manager & OSPO, CRESYM

Hugo Pfister

Manager Systems & Markets, TenneT Netherlands

Sven Fritzsche

OSPO Lead, Elia Group - Elia Belgium and 50 Hertz

Dr.-Ing. Sven Fritzsche is OSPO Lead at the Elia Group (for the TSOs 50Hertz and Elia Transmission Belgium), where he drives the company’s digital agenda through open source. His work focuses on using the OSPO as a catalyst for organizational change connecting business, legal, and... Read More →

Tuesday September 15, 2026 13:10 - 13:40 CEST
Crossover

Open Source Strategy, Panel Discussion

13:10 CEST

Open Source at the Edge: SEAPATH Is Now Fully Enabled on SUSE - Jurriën Bloemen, SUSE & Eloi Bail, Savoir-faire Linux

Tuesday September 15, 2026 13:10 - 13:55 CEST

Elektro Stage

As the energy sector accelerates its transition toward decentralized power, the need for robust, open-source grid automation has never been greater. LF Energy’s SEAPATH project provides this critical framework, but a resilient platform requires an equally resilient foundation.

In this session, we are thrilled to announce a major milestone: the enablement of SUSE software for the SEAPATH project is officially complete. We will walk through the journey of bringing SEAPATH to the SUSE ecosystem, discussing the technical integration and how leveraging SUSE's enterprise-grade stack provides the security, stability, and lifecycle management that critical energy infrastructure demands.

Key Takeaways:

The Milestone: What the completed SUSE enablement means for the SEAPATH ecosystem and open-source energy innovation.

Under the Hood: How SEAPATH leverages SUSE technologies for optimal performance at the edge.

Real-World Impact: How operators can now confidently deploy mission-critical solutions on this stack.

Join us to see how SEAPATH and SUSE are ready to power the substations of tomorrow!

Speakers

Jurriën Bloemen

Domain Solution Architect, SUSE

Jurriën is a Domain Solution Architect at SUSE dedicated to making complex technology simple and actionable for customers. He leverages his expertise across all markets to drive innovation with a strong focus on Linux and Edge computing.

Eloi Bail

Director of operations / LF Energy SEAPATH TSC Chair, Savoir-faire Linux

Eloi Bail is an embedded systems engineer and the first contributor to LF Energy SEAPATH and project TSC Chair since 3 years.

Tuesday September 15, 2026 13:10 - 13:55 CEST
Elektro Stage

Digital Substations, Demo Sessions

13:10 CEST

A Hands-on Open-source Dynamic Simulation Tutorial Using VeraGrid - Andres Mauricio Díaz Caicedo & Pablo de Juan Vela, eRoots Analytics; Marina Rosés Gibert & Marina Sans Esqué

Tuesday September 15, 2026 13:10 - 14:50 CEST

Back Stage

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.

Speakers

Marina Sans Esqué

Unknown Title, Unknown Company

Maria holds a BSc in Industrial Engineering and a Double MSc in Industrial and Energy Engineering from UPC-ETSEIB. Her work has focused on small-signal analysis in the RMS framework and EMT simulation foundations in VeraGrid. She is currently advancing VeraGrid’s dynamic solver... Read More →

Pablo de Juan Vela

Development engineer, eRoots Analytics

Pablo holds BSc degrees in Mathematics from UPC-FME and Industrial Engineering from UPC-ETSEIB, completed in 2021. He earned an MSc in Mathematical Optimization from Université Paris-Saclay in 2022. His master’s thesis at EDF R&D focused on robust control for EV charging. Since... Read More →

Andres Mauricio Díaz Caicedo

Power Systems Solutions Architect, eRoots Analytics

Andrés Mauricio Díaz Caicedo is a Power Systems Solutions Architect and Industrial PhD candidate at eRoots. He previously served as Dynamic Modelling Lead at a global engineering consultancy and as Economic Dispatch Analyst at XM, the Colombian ISO, where he led Protection and Control... Read More →

Tuesday September 15, 2026 13:10 - 14:50 CEST
Back Stage

Modeling, Tutorial Sessions

13:45 CEST

Selectivity as Code: Closing the Loop Between PowSyBl and SEAPATH - Aurélien Wataré, RTE INTERNATIONAL & Nevena Popović, RTE international South-East Europe

Tuesday September 15, 2026 13:45 - 14:15 CEST

Seebühne

PowSyBl runs load flow in production at TSOs; its short-circuit side is younger. We do not need a perfect fault engine to make the next leap. Treat PowSyBl as a *grid engine* — it gives the short-circuit power Scc, the fault current Icc, line parameters and source strength, the boundary conditions a protection study needs since relays are set on Icc min and max. Feed those into the *real* protection, virtualized on a SEAPATH base, close it into a software loop over one zone, and you test selectivity the way software teams test code: deterministically, repeatably, in the open.

Speakers

Aurelien Watare

DIRECTOR OF DIGITAL SOLUTION, RTE INTERNATIONAL

Aurélien Watare is Director of Digital Solutions at RTE International. He was one of the people at the origin of the SEAPATH project, a real-time Linux platform for virtualized substation automation hosted within LF Energy. His background is in power systems and IT/OT convergence... Read More →

Nevena Popović

Digital Substations & HIL Engineer, RTE international South-East Europe

Nevena Popović is a Digital Substations & HIL Engineer at RTE international South-East Europe, specializing in Power Systems and Digital Substations. With hands-on expertise in SCADA systems, IEC 61850, and Hardware-in-the-Loop (HIL) simulation, Nevena has worked across substation... Read More →

Tuesday September 15, 2026 13:45 - 14:15 CEST
Seebühne

Cross-Cutting, Session Presentation

13:45 CEST

How To Orchestrate RL Agents for Topological Remedial Actions Using PowSyBl’s Operator Strategy - Harald Jendrian, TUM School of Engineering and Design

Tuesday September 15, 2026 13:45 - 14:15 CEST

Waldbühne

We bring LF Energy's PowSyBl into the control room as a decision support tool, combining grid analysis with Reinforcement Learning to solve post-contingency problems immediately. Increasing complexity amplifies overloads, demanding corrective actions beyond what manual operator heuristics and existing tools can deliver in time. Open-source RL agents backed by PowSyBl learn curative topology reconfigurations for the Simbench EHV network in Node-Breaker representation. Agents observe bus voltages, line loadings, injection profiles, and switching states. The action space controls breakers and disconnectors via valid action masks for node splitting, busbar re-assignment, and line (dis)connection. Remedial actions are injected as Operator Strategy actions inside PowSyBl's Security Analysis, faithfully reproducing N-1 assessment in training. We discuss reward design, bonuses, penalties, and action-masking. The talk ends with a live demo: a Leaflet map with colour-coded loadings, interactive single-line diagrams, forecast plots, and a control panel triggering Security Analysis and visualising corrective actions via PowSyBl's Operator Strategy in real time.

Speakers

Harald Jendrian

Scientific Staff & Founding Engineer, TUM School of Engineering and Design

With a strong background in power systems, Harald is currently working on Reinforcement Learning applications for transmission grid operation. At Nodus Software, he helps TSOs and DSOs with the deeper integration of the next generation of grid analysis tools. At TUM, he focuses on... Read More →

Tuesday September 15, 2026 13:45 - 14:15 CEST
Waldbühne

Data + AI, Session Presentation

13:45 CEST

How E.ON's OSPO Maps Energy Open Source Projects To Real World Utility Needs - Sebastian Grüner & Benjamin Rilz, E.ON Digital Technology GmbH

Tuesday September 15, 2026 13:45 - 14:15 CEST

Crossover

LF Energy and the broader energy Open Source ecosystem offer a growing number of promising projects, but for many utilities the challenge is no longer awareness alone — it is understanding which projects are relevant for their operations, how to evaluate them, and how to connect them to real business needs .

E.ON's OSPO built a practical evaluation approach for LF Energy and other industry projects. The goal was to turn the evaluation into something internal stakeholders could understand, discuss, and base their decisions in.

The presentation will introduce the evaluation framework we used to assess selected LF Energy projects and highlight key findings. However, the focus will be on what happened after the OSPO-internal evaluation: how the insights helped us identify the most relevant business units, how we engaged with these teams through targeted user interviews, and how this created a solid baseline towards adoption.

Speakers

Sebastian Grüner

Open Source Consulting Manager, E.ON Digital Technology

Leads the OSPO initiative at the IT subsidiary of E.ON, helping transform our grid for a carbon neutral future. Before that he worked 13 years as a journalist and editor covering Open Source - technology and software as well as the sociopolitical influence of the projects and their... Read More →

Benjamin Rilz

Junior Open Source Consultant, E.ON Digital Technology GmbH

I work in the Open Source Program Office at E.ON Digital Technology GmbH, where I focus on connecting the Open Source ecosystems with practical business needs in the energy sector. I have already attended several Linux Foundation conferences, but I haven’t given a talk yet. In this... Read More →

Tuesday September 15, 2026 13:45 - 14:15 CEST
Crossover

Open Source Strategy, Session Presentation

14:05 CEST

Dynaωo: Exploring Open-Source Real-World Dynamic Simulation Capabilities for Power Systems - Gilles Aouizerate, Joy El Feghali,Florentine Rosiere & Marco Chiaramello, RTE, Réseau de Transport d’Électricité

Tuesday September 15, 2026 14:05 - 14:50 CEST

Elektro Stage

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.

Speakers

Marco Chiaramello

Dr, R&D project manager, RTE, Réseau de Transport d’Électricité

Dr. Marco Chiaramello has worked in RTE’s R&D Department since 2017 and has led research on transmission grid modelling and simulation since 2023. His work addresses the transformation of power systems driven by HVDC links, advanced protection schemes, and power-electronic-interfaced... Read More →

Florentine Rosiere

R&D engineer, RTE

Florentine Rosiere is a Computer Engineer at RTE, where she contributes to the development of Dynawo, an open-source dynamic simulation suite used operationally for power system studies. With 15 years of experience in software engineering, she is involved in software design, implementation... Read More →

Gilles Aouizerate

R&D Engineer, RTE

Gilles Aouizerate is a R&D Engineer at RTE, where he contributes to the development of Dynawo, an open-source dynamic simulation suite, used at an industrial scale. With 15 years of experience in simulation software development, he specializes in dynamic simulators for energy systems... Read More →

Joy El Feghali

Research engineer in Power System modelling and simulation, RTE

Joy El Feghali holds a ph.D. degree in Control from Paris-Saclay University. She also holds a master’s degree in
control and signal processing from CentraleSupelec, Paris-Saclay University, and has an electrical engineering
background.
She currently works at the R&D department of RTE, the French TSO. She is mainly developing power system models for the Dynawo suite simulation tools for transient and converter stability studies using the Modelica language... Read More →

Tuesday September 15, 2026 14:05 - 14:50 CEST
Elektro Stage

Modeling, Demo Sessions

14:20 CEST

AINETUS - AI for Safety-Critical Network Infrastructures - Gil Sampaio, INESC TEC

Tuesday September 15, 2026 14:20 - 14:30 CEST

Waldbühne

This talk will present the LF Energy project AINETUS, which implements AI-based decision-support (AI assistant) capabilities for power system operations, addressing the increasing complexity of modern grids driven by high levels of renewable energy integration. Traditional tools are often limited in their ability to anticipate system dynamics and support operators under rapidly changing conditions. AINETUS tackles this gap by combining data-driven techniques with domain knowledge to provide proactive, explainable, and operator-centric support.
It will show a set of components designed to work together or independently within existing operational environments, in particular: (1) Human-AI interaction tools that enhance situational awareness. (2) Reinforcement learning agents that identify optimal operational strategies, capable of adapting to evolving grid conditions while respecting physical constraints.
(3) Explainability tools and uncertainty estimation that help to provide transparent recommendations to support informed decision-making.
AINETUS is designed to integrate with existing platforms and workflows, leveraging environments such as Grid2Op for training and validation.

Speakers

Gil Sampaio

Mr., INESC TEC

R&D Engineer and Area Manager at the Center for Power and Energy Systems (CPES) at INESC TEC, where he works on advanced solutions for smart grid operation, monitoring, and automation. His research focuses on data-driven methods, AI applications for power systems, and the integration... Read More →

Tuesday September 15, 2026 14:20 - 14:30 CEST
Waldbühne

Data + AI, Lightning Talk

14:20 CEST

Grid Enhancement Platform: Operationalizing Open Source for Real-Time, Risk-Aware Grid Management - Ankur Arohi, emsys grid services GmbH

Tuesday September 15, 2026 14:20 - 14:50 CEST

Seebühne

Modern power systems are undergoing a structural transformation that planning tools were never designed to handle. System operators today manage this complexity with tools built for a different era, decisions made on intuition shaped by experience rather than probabilistic foresight.
The Grid Enhancement Platform (GEP) solves this software architecture challenge as an open-source reference architecture. Built on a modular, loosely coupled stack of four mature projects LF Energy’s PowSyBl, Power Grid Model, OpenSTEF and Pandapower. At day-ahead clearing, GEP ingests the cleared positions and runs a forward-looking network state simulation. Using the probabilistic outputs at the asset level, propagated upward through aggregation engine and evaluated against the network model in Power Grid Model and PowSyBl, the platform generates a time-series of nodal state distributions. At the aggregation level, flexibility assets-batteries, demand response contracts are modelled as degrees of freedom that can be co-optimised against both the energy market objective and the network constraint objective simultaneously. The result is a genuinely localised, network-aware dispatch signal .

Speakers

ANKUR AROHI

Strategist, emsys grid services GmbH

Ankur is a Product Owner and Technical Lead at emsys grid services GmbH. He specializes in advanced power systems modeling, forward looking grid states forecasting and real-time grid operations. His work sits at the intersection of grid planning and real-time operations, with a strong... Read More →

Tuesday September 15, 2026 14:20 - 14:50 CEST
Seebühne

Cross-Cutting, Session Presentation

14:20 CEST

Fast, Lean, Precise, Controlled: Compliance Automation With OSCAL in Our Open-Source-Program-Office - Markus Hillebrand, 50Hertz Transmission GmbH

Tuesday September 15, 2026 14:20 - 14:50 CEST

Crossover

In the world of open-source governance, we are currently facing ‘waves the size of Nazaré’ in the form of regulatory changes, while the intensity of attacks on organizations’ digital services and supply chains continues to increase. It remains a mystery why many organizations respond by hiding behind ever-higher ‘walls of paperwork’ and creating cumbersome bureaucratic processes. We suggest a different path: to surf these waves and treat them as opportunities for progress.

This session presents a lean, developer-centric approach to governance. Instead of relying on isolated GRC tools (or spreadsheets), we treat compliance as if it were a collaboration between developers. We collect applicable and auditable requirements from open standards and transform them into human-readable data records using OSCAL (Open Security Controls Assessment Language) ... and store them in GIT. We combine classic automation with AI agents to get compliance tasks done. In this session, we will show you real-world cases along the journey through a continuous improvement iteration (PDCA cycle) and demonstrate what can be achieved with such a workbench.

Speakers

Markus Hillebrand

Software Architect: Open Source | Information Security | Compliance Automation, 50Hertz Transmission GmbH

Markus is a freelance software architect and currently works as an open-source manager for 50 Hertz (Elia Group) and CARIAD SE. With a long-term background as a software developer, product manager and entrepreneur, he mainly serves corporate clients and their suppliers. At the moment... Read More →

Tuesday September 15, 2026 14:20 - 14:50 CEST
Crossover

Security & Compliance, Session Presentation

14:30 CEST

Towards Industrial Grid Foundation Models With PowSyBl and GridFM - Nicolas Lair, Artelys

Tuesday September 15, 2026 14:30 - 14:40 CEST

Waldbühne

This lightning talk presents the integration of the PowSyBl framework into the datakit of GridFM, two flagship LF Energy projects, to bridge foundation models and industrial-grade power system simulation. GridFM relies on large-scale synthetic data generation, such as load flows, to train a foundation model, where training data quality directly impacts model performance during inference.
The integration of PowSyBl brings several key benefits. It extends GridFM to realistic and industrial-grade network models by supporting multiple formats (CIM, CGMES, PSS/E), enabling the use of richer and more representative datasets. It provides access to an industrial-grade load flow solver through Open Load Flow, improving the physical consistency and accuracy of generated data. Finally, it enables the generation of dynamic simulation data through Dynawo, opening the way to foundation models trained on both static and dynamic grid behaviours.
Overall, this integration is a key step toward the industrialization of grid foundation models, enabling their application to real-world power system studies.

Speakers

Nicolas Lair

AI Project Director, Artelys

Nicolas Lair is an AI & Data Science Project Manager at Artelys, specializing in the application of AI, optimization, and advanced analytics to complex systems, particularly in the energy sector. He holds an engineering degree from École Polytechnique and a PhD in computer science... Read More →

Tuesday September 15, 2026 14:30 - 14:40 CEST
Waldbühne

Data + AI, Lightning Talk

14:40 CEST

OpenSynth Dataset Extension - RTE7K Challenge - Pierre Olivier Cayetanot, CRESYM & Josh Cooney Mercadal, eRoots Analytics

Tuesday September 15, 2026 14:40 - 14:50 CEST

Waldbühne

Last year, the LF Energy project OpenSynth expanded with the launch of D-GITT, an open data hub featuring RTE7K: a dataset of the whole French transmission grid, including topological changes over three years. Striking the interest of other actors in opening their own dataset, RTE7K demonstrated its values as a realistic, open benchmark for grid analysis.

Now, RTE, CRESYM, eRoots and IRT SystemX joined forces to launch the RTE7K Challenges, a series of challenges centered around the dataset. The first one, kicking off at this summit, focuses on tackling the "missing piece" for running powerflows on the RTE7K dataset: power injection data. Participants are tasked with producing realistic, synthetic injections using whatever public data and methodology they can come up with. As well as being an enticing challenge for participants, the outcome will be a critical extension to RTE7K that will enable further users to test and validate tools using data comparable to what was previously exclusive to TSOs.

Future challenges will explore topics like AI-driven grid topology management, power flow analysis and more, pushing the boundaries of what’s possible with open grid data.

Speakers

Josh Cooney Mercadal

Power Systems Engineer, eRoots Analytics

Josh is a power systems engineer based in Barcelona with eRoots Analytics. He is applying his background in high energy physics to the modelling of large grids eRoots Analytics.

Pierre Olivier Cayetanot

IT Asset & Project Manager, CRESYM

IT Asset and Project Manager at CRESYM, I bridge data engineering and energy systems to advance open-source solutions.

Previously, I worked on DevOps at ENTSO-E, DSO-TSO grid merging as well as an internal OpenSTEF implementation at RTE International.

Now, I drive FOSS projects to accelerate the energy transition... Read More →

Tuesday September 15, 2026 14:40 - 14:50 CEST
Waldbühne

Data + AI, Lightning Talk

14:50 CEST

Afternoon Break

Tuesday September 15, 2026 14:50 - 15:20 CEST

Smart Cafe + Wunder Bar

Tuesday September 15, 2026 14:50 - 15:20 CEST
Smart Cafe + Wunder Bar

Special Events / Breaks / Registration

15:20 CEST

Towards GridFM: GENCO – a Unified Neural Solver for Steady-state Grid Analysis - Speakers to Be Announced

Tuesday September 15, 2026 15:20 - 15:50 CEST

Waldbühne

Last year, we introduced a basic Grid Foundation Model (GridFM) for power flow. This year we released GENCO – the GEometric Neural Corrective Optimizer, a neural solver for steady-state transmission-grid analysis. It unifies three grid-analysis tasks that are typically handled by separate pipelines: power flow (PF), optimal power flow (OPF), and state estimation (SE). GENCO represents the grid as a heterogeneous graph and iteratively refines solutions using task-specific physical decoders, box constraints, and explicit power-balance residuals. GENCO achieves state-of-the-art performance against specialized model baselines and classical solvers, with 5× and 200× speedup for AC-PF and AC-OPF respectively, as well as improved robustness in SE under sparse observability conditions. Beyond the model, we released gridfm-datakit for realistic grid data generation, gridfm-graphkit for low-code training and evaluation, and benchmark datasets spanning PF and OPF instances. By unifying model architecture, data generation, training, inference, and benchmarking, this end-to-end framework shortens innovation cycles and reduces integration efforts for the LFE community.

Speakers

Alban Puech

PhD candidate, IBM Research

Alban Puech is a PhD candidate at IBM Research and ETH Zurich, developing GENCO. He is a lead contributor to the Linux Foundation’s GridFM project. He previously conducted visiting research at Harvard in Prof. Xie’s lab and holds an M.S. from EPFL and a B.S. in Mathematics and... Read More →

Tuesday September 15, 2026 15:20 - 15:50 CEST
Waldbühne

Data + AI, Session Presentation

15:20 CEST

CapEx, OpEx, and Open Source - Michael Dorner & Maximilian Capraro, Capraro Dorner PartG

Tuesday September 15, 2026 15:20 - 15:50 CEST

Crossover

Regulatory frameworks in the energy sector often favor capital expenditures (CapEx) over operational expenses (OpEx), creating a structural disincentive for TSOs and DSOs to develop and publish open-source software. In this talk, we unpack the root causes of this bias and present preliminary findings from our Linux Foundation–funded research. Finally, we outline pathways to realign incentives and enable broader adoption of open source for energy infrastructure.

Speakers

Maximilian Capraro

Researcher & Consultant, Capraro Dorner PartG

Dr. Maximilian Capraro is a researcher, consultant, and entrepreneur focused on InnerSource and open source. He is co-founding director of the InnerSource Commons Foundation, co-founder of transfer pricing startup kolabri.io and consultant at caprarodorner.de. Max currently serves... Read More →

Michael Dorner

Professor of Software Engineering, Capraro Dorner

Michael Dorner is Professor of Software Engineering at Technische Hochschule Nürnberg and a consultant. His research focuses on regulatory compliance in software engineering, investigating how regulatory frameworks shape the development of software systems.

Tuesday September 15, 2026 15:20 - 15:50 CEST
Crossover

Open Source Strategy, Session Presentation

15:20 CEST

Bringing Open Energy Models To GIS: Interoperability With ESDL in ArcGIS and QGIS - Thomas van Dijk, TNO

Tuesday September 15, 2026 15:20 - 16:05 CEST

Sonnendeck

We present how the open Energy System Description Language (ESDL) is translated into GIS environments to enable interoperable and transparent spatial energy planning, across domains. ESDL is a modelling language designed to represent multi-carrier energy system components, their relationships, and dynamic behavior, while structuring assets, network topologies, and scenarios in a consistent way.

In the Netherlands the spatial dimension of the energy transition is critical and diverse stakeholders (grid operators, municipalities, industry, and modelers) have to exchange, aggregate, and iteratively refine energy scenarios. This makes a shared standard, that connects different models across domains (e.g. heat, gas and electricity) and seamlessly links to GIS, important.
In this session, we demonstrate how Esri and ArcGIS are integrating ESDL and explore what this means for interoperability and the open-source ecosystem. How can a leading GIS platform evolve into an open environment for open energy simulation models?

We will share the latest status of ESDL integration in both ArcGIS and QGIS, including practical examples such as hydrogen network simulations: https://arcg.is/9rP0y

Speakers

Thomas van Dijk

Digital Energy Business Developer, TNO

Thomas has wondered most of his career how global challenges can be solved collectively. From a battery start-up, microgrids to an opensource NGO, he works at TNO since 2025, a Dutch research organization, to bring their long history of public collaborative innovation in the energy... Read More →

Tuesday September 15, 2026 15:20 - 16:05 CEST
Sonnendeck

Modeling, Birds of a Feather Sessions

15:20 CEST

PyPowSyBl Demonstration : Core and New Features - Hugo Kulesza, RTE (Réseau de Transport d'Electricité) & Federico Naranjo, Artelys

Tuesday September 15, 2026 15:20 - 16:05 CEST

Elektro Stage

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.

Speakers

Federico Naranjo

Power System Consultant, Artelys

Power systems consultant at Artelys (Madrid), holding a MSc in Energy Engineering from KU Leuven and KTH. Specialises in grid simulation, security analysis, and energy market integration, leading computational module development for European regional coordination centres. Supports... Read More →

Hugo Kulesza

Software Engineer, RTE (Réseau de Transport d'Electricité)

Hugo Kulesza has been working at RTE since his graduation as engineer from ISAE-Supaero in 2022. He contributed from the start on PyPowSyBl and other PowSyBl projects, while also working on RTE security analysis and voltage management projects.

Tuesday September 15, 2026 15:20 - 16:05 CEST
Elektro Stage

Modeling, Demo Sessions

15:20 CEST

CoMPAS in Practice: Building, Extending and Ensuring Quality in SCL Engineering - Stefan Baumgartner, Elena Krois, Lorenz Hörburger& David Monichi, BearingPoint GmbH; Sander Jansen, Alliander N.V.

Tuesday September 15, 2026 15:20 - 17:00 CEST

Back Stage

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.

Speakers

Sander Jansen

Product owner virtual stations, Alliander N.V.

Sander Jansen is Product Owner at Alliander, where he contributes to innovation in substation automation and digital grid technologies. With a background in engineering and a passion for open collaboration, Sander is an active contributor to LF Energy initiatives and a driving force... Read More →

Stefan Baumgartner

CoMPAS Vice Chair|Manager, BearingPoint

I take pleasure in working on my home automation projects, utilizing Open Source Software. When I'm not immersed in electrical projects, I enjoy singing with a small semi-professional group. As an open source enthusiast and IEC 61850 follower, I aim to collaborate with the community... Read More →

David Monichi

Coding Software Architect, BearingPoint GmbH

With a strong focus on cloud-native technologies, distributed systems, and modern platform engineering, I continuously explore better ways to design resilient, efficient, and future-ready solutions. I believe great architecture is not only about systems — it is about enabling innovation... Read More →

Elena Krois

UX Designer, BearingPoint

I’m a UX Designer with a background in business informatics and graphic and communication design. After starting in QA and test automation at an energy provider, I moved into UX. Today, I design mobile, responsive, and enterprise apps across insurance, research, and energy, focusing... Read More →

Lorenz Hörburger

System Analyst, BearingPoint

Software Developer at BearingPoint and Master’s student at TU Vienna with a passion for modern software development and optimization problems. During the last year, I have been working on CoMPAS/IEC61850 plugin development, building tools that simplify substation configuration workflows... Read More →

Tuesday September 15, 2026 15:20 - 17:00 CEST
Back Stage

Digital Substations, Tutorial Sessions

15:55 CEST

From Open Data To Foundation Models: Building GridSFM for Power Grid Analysis - Andrea Britto Mattos Lima, Microsoft Research

Tuesday September 15, 2026 15:55 - 16:25 CEST

Waldbühne

We present GridSFM, an open-source dataset and foundation model that enables building and operating transmission-scale power grid models from open data to machine learning inference.

Starting from publicly available sources in the United States (OpenStreetMap, U.S. EIA, and U.S. Census), our pipeline constructs geographically grounded, AC-OPF-solvable U.S. power grid models at continental scale. Importantly, our modeling pipeline can be extended to other locations where similar open data is available.

On top of this data layer, GridSFM introduces a physics-informed foundation model trained across a diverse mix of grid topologies and operating scenarios to predict AC-OPF solutions in milliseconds, enabling fast feasibility screening and solver acceleration.

This session will walk through the full stack: from open data ingestion and model construction to ML training and deployment. We will share lessons learned building reproducible, large-scale grid datasets and integrating physics constraints into learning systems.

Speakers

Andrea Britto Mattos Lima

Senior Research Software Engineer, Microsoft Research

Andrea Britto Mattos Lima holds B.Sc. and M.Sc. degrees in Computer Science from the Institute of Mathematics and Statistics at the University of São Paulo, Brazil. She joined Microsoft Research in 2021 and is currently part of the Catalyst Lab.

Tuesday September 15, 2026 15:55 - 16:25 CEST
Waldbühne

Data + AI, Session Presentation

15:55 CEST

Asset Thermal Models: Expanding the Family of Thermal Models To Cables and Switchgear - Anna Van Velsen & Jesse Tjebbes, Alliander

Tuesday September 15, 2026 15:55 - 16:25 CEST

Seebühne

We need the capability to thermally model all components in the chain of assets. The global energy transition is rapidly reshaping electricity systems, driven by decarbonization, electrification, and the integration of renewables. These developments introduce new operational challenges for grid operators, including increased congestion and the need to maximize existing grid capacity while ensuring reliability.

Building on our Transformer Thermal Model, we add two new members to the family of thermal models: Cable Thermal Model (CTM) and Switchgear Thermal Model (SGTM). These models estimate asset temperatures based on load, ambient conditions, and technical specifications. Together, they allow operators to identify bottlenecks, assess hidden capacity, and mitigate congestion risks. As this now enables operators to model most primary components in the grid, the applicability and value increase exponentially!

In this talk, we demonstrate how we apply these models in practice across multiple asset types, enabling higher asset utilization, optimal grid planning, improved monitoring, and more efficient system operation.

Speakers

Jesse Tjebbes

PO, Alliander

Jesse Tjebbes is a Product Owner for Asset & Product Management at Alliander. He drives several initiatives to leverage the Asset Thermal Models in business processes for maximum organizational impact.

Anna Van Velsen

Data Scientist, Alliander

Anna van Velsen is a data scientist at Alliander, a Dutch distribution system operator. She contributes to the development of our thermal models which help Alliander to fully utilize our critical assets under acceptable accelerated aging.

Tuesday September 15, 2026 15:55 - 16:25 CEST
Seebühne

Modeling, Session Presentation

15:55 CEST

Open Source ROI Framework for Grid Operators - Sam Boysel, The Linux Foundation & Dr. Mital Kanabar, PowerProfs

Tuesday September 15, 2026 15:55 - 16:25 CEST

Crossover

In an era of rapid energy transition, grid operators face complex software procurement decisions. This session introduces an open-source quantitative framework enabling utilities and regulators to benchmark the total value of OSS adoption. The framework structures decision-making by enumerating benefit and cost components and distilling them into intuitive indices for relative efficiency.

Topics covered in this session:

- OSS Benefit-Cost Framework: A deep dive into the model’s four primary components: Total Cost of Ownership (TCO), Risk Factors (e.g., vendor lock-in, cybersecurity), Strategic Value (e.g., operational efficiency, innovation), and Social Benefits (e.g., sustainability, equity). We will demonstrate how to adapt and extend this framework for specific utility contexts.

- Ecosystem Report: A summary of the current energy software ecosystem using the framework to highlight real-world trends and the strategic advantages of public digital infrastructure.

Attendees will gain a methodology to move beyond qualitative arguments and effectively capture the diverse value OSS offers to the global power grid.

Speakers

Sam Boysel

Data Scientist, The Linux Foundation

Sam Boysel is a Data Scientist at the Linux Foundation. He has extensive empirical research experience in topics across the open source ecosystem. His work leverages microeconomic theory to explore incentives, behaviors, and place value on open source dynamics. Before joining the... Read More →

Dr. Mital Kanabar

Founder & CEO, PowerProfs

Dr. Mital Kanabar is a Founder and CEO of PowerProfs Inc., Markham, Ontario, Canada. He has 20+ years of industry experience serving the power & energy domain. Dr. Kanabar holds 25+ international patent applications; and has published 50+ journal/magazine/conference articles. Dr... Read More →

Tuesday September 15, 2026 15:55 - 16:25 CEST
Crossover

Open Source Strategy, Session Presentation

16:15 CEST

Comparing Grid Control Architectures: A MBSE Approach With CyberGridML, SysON and SysML V2 - Akli Rahmoun, RTE France & Guillaume Giraud, RTE

Tuesday September 15, 2026 16:15 - 17:00 CEST

Elektro Stage

As power grids transition to highly integrated cyber-physical systems, the complexity of control architectures poses a major challenge for resilience and scalability. This session introduces CyberGridML, a modeling language based on MBSE (Model-Based System Engineering) and the OMG SysML v2 standard, designed to evaluate the impact of digital architecture on operational performance.
We will demonstrate how to model a modular SCADA system across three architectural layers: functional control, digital resources and hazard modeling (computing failures, network failures, network latency, etc.). Through a concrete case study, we show how the CyberGridML methodology enables a rigorous assessment of trade-offs between resilience, operational efficiency and cost, and how these models can be leveraged within digital twin environments such as TwinEU control-room twin to support realistic experimentation and training.

Speakers

Guillaume GIRAUD

R&D Distinguished Engineer, RTE

Guillaume Giraud is a distinguished R&D engineer (CentraleSupélec 96) with 26 years of experience working on telecommunication, electrical system control, and cyber-physical systems at RTE (French Transmission Operator). He is currently overseeing different R&D projects to imagine... Read More →

Akli Rahmoun

R&D Engineer, RTE France

Rahmoun Akli is an R&D Engineer at RTE. His work focuses on applying Model-Based Systems Engineering and SysML standard to design and assess resilient grid control architectures. He contributes to CyberGridML, an open-source domain-specific modeling language supporting architectural... Read More →

Tuesday September 15, 2026 16:15 - 17:00 CEST
Elektro Stage

Security & Compliance, Demo Sessions

16:30 CEST

EnerGNN: A Graph Neural Network Library for Real-life Complex Energy Systems. - Balthazar Donon, RTE (Réseau de Transport d'Électricité)

Tuesday September 15, 2026 16:30 - 17:00 CEST

Waldbühne

EnerGNN is an open-source python package that aims at bridging the gap between research on Graph Neural Networks (GNNs) and industrial operation of energy networks.

This package includes:
- A faithful and adaptive data representation tailored for large scale industrial systems made of interacting entities.
- A modular library of GNN implementations designed to handle such data.
- A clear interface for business-driven use-case.
- A modular training loop for training GNNs on your specific use-case.

It is the result of 8+ years of research at RTE (Réseau de Transport d'Électricité) and academical partners (Université Paris-Saclay & Université de Liège). It is currently being used for multiple use-cases at RTE, and has shown its ability to scale to the full HV-EHV French system, and to output meaningful and high-precision predictions.

This presentation aims at showing the potential of our open-source package EnerGNN, and to attract potential users and contributors to help us on the following topics :
- GNN acceleration, robustification and improvement,
- Application of EnerGNN to new use cases,
- Extension of EnerGNN to other industrial domains.

Speakers

Balthazar Donon

Research Officer, RTE (Réseau de Transport d'Électricité)

Balthazar is a research officer at RTE (Réseau de Transport d’Électricité) Research & Development. He mainly works on designing an AI algorithm to help power grid operators.
He graduated from the École polytechnique and Stanford University. He obtained a PhD in Computer Science at Université Paris-Saclay and RTE R&D under the supervision of Isabelle Guyon, Marc Schoenauer, and Rémy Clément. He then worked as a postdoctoral researcher at the Unive... Read More →

Tuesday September 15, 2026 16:30 - 17:00 CEST
Waldbühne

Data + AI, Session Presentation

16:30 CEST

Phlowers: An Ecosystem for Physical Simulations of Overhead Lines - Jérémy Wang & Adrien Goeller, RTE

Tuesday September 15, 2026 16:30 - 17:00 CEST

Seebühne

Understanding, simulating and predicting the behavior of overhead lines and their supporting structures (including electrical towers) is essential for securing grid maintenance and extending asset life. Phlowers provides tools to achieve this in a simple way, despite the complexity of the underlying algorithms.

Phlowers is an Open Source ecosystem that brings mechanical and thermal modeling of overhead lines to engineers, researchers and operators, including those working offline. In the future, it will integrate the modeling of supporting structures (pylons/towers) to simulate mechanical constraints and interactions within the grid.

The ecosystem currently includes Python libraries for simulations and an offline web application called Stellar. It enables users to customize models, integrate their own data and adapt tools to operational needs. It will also support large-scale batch computations to assess maintenance policies, simulate multiple scenarios and optimize long-term asset management strategies.

In this session, we will explore its architecture, use cases and contribution to innovation in grid asset management.

Speakers

Jérémy Wang

Software Engineer, RTE

Software engineer after graduating from CentraleSupélec (Paris-Saclay University) in 2024. Worked on the projects of Phlowers about mechanics: Mechaphlowers and Stellar.

Adrien Goeller

Tech Lead, RTE

At RTE, Adrien Goeller leads technical development in software for overhead power lines. He’s behind several Open Source projects in the Phlowers initiative. He worked before on DLR and thermic analysis subjects. He also supports R&D in AI and MLOps for automated grid inspection... Read More →

Tuesday September 15, 2026 16:30 - 17:00 CEST
Seebühne

Modeling, Session Presentation

16:30 CEST

Who Builds the Tools? Creating Pathways for Women in Open Source Energy Modelling - Tosin George, Open Energy Transition & Ekaterina Fedotova, Open Energy Transition, PyPSA-meets-Earth

Tuesday September 15, 2026 16:30 - 17:00 CEST

Crossover

The open source energy community is building the tools that will shape the global energy transition. But who is building those tools and who is being left out of that conversation?

Women remain significantly underrepresented in open source energy modelling worldwide. This is not just an equity issue. It is a capability gap. When the people building energy planning tools do not reflect the diversity of the communities they serve, the solutions themselves fall short.

This session introduces a first-of-its-kind mentorship programme designed to bring more African women into open source energy modelling, developed in partnership between LF Energy, the World Resources Institute, Centre for Net Zero and Open Energy Transition.

The programme builds structured, supported pathways connecting aspiring women energy experts with experienced practitioners. Crucially, it is designed not just to prepare women for the open source community but to prepare the open source community to welcome and sustain them.

Panellists will share how the programme was conceived, how the partnership was built, what the curriculum looks like, and what the community can do to support and sustain it.

Speakers

Ekaterina Fedotova

Lead Maintainer, Open Energy Transition, PyPSA-meets-Earth

Ekaterina holds a PhD in Thermal Physics and has 10+ years of experience across industry and research, where she adopted open source tools to solve practical challenges in the decarbonisation of energy supply. She is one of the core developers of the PyPSA-Earth energy system model... Read More →

Tosin George

Project Manager, Open Energy Transition

Tosin George is a project and programme management professional specialising in the renewable energy and clean energy transition space. With experience spanning solar project delivery, capacity building, and open-source energy planning tools, she has led complex, multi-stakeholder... Read More →

Tuesday September 15, 2026 16:30 - 17:00 CEST
Crossover

Open Source Strategy, Session Presentation

17:00 CEST

Networking Reception

Tuesday September 15, 2026 17:00 - 18:00 CEST

Smart Cafe + Wunder Bar

Tuesday September 15, 2026 17:00 - 18:00 CEST
Smart Cafe + Wunder Bar

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