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

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Type: Modeling clear filter
Tuesday, September 15
 

11:05 CEST

PowSyBl: A Service Provider Business Model - Nicolas Omont, Artelys
Tuesday September 15, 2026 11:05 - 11:15 CEST
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
avatar for Nicolas Omont

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

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
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
avatar for Dio Stamatiadis

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

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
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
avatar for Régis Le Drézen

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 →
avatar for Sébastien Dinot

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 →
avatar for Agnès Triponel

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
 
Wednesday, September 16
 

13:30 CEST

Bridging the Gap: Advancing PyPSA as an Industry-Grade Open Energy Planning Framework - Fabian Hofmann, Open Energy Transition
Wednesday September 16, 2026 13:30 - 13:40 CEST
Open-source energy models are becoming increasingly important for transparent and reproducible energy planning. At the same time, many institutions still rely on proprietary software for day-to-day planning and decision-making. Closing this gap requires more than open code. Open-source tools also need the functionality, reliability, and long-term support expected by industry users.

This session presents the PyPSA-Taskforce, a joint initiative by Technische Universität Berlin, Università di Pisa, and Open Energy Transition to strengthen PyPSA as a professional open-source tool for energy system planning. The Taskforce focuses on improving areas of PyPSA that are still missing or not yet mature enough for wider industry adoption.

The project focuses on developing and integrating capabilities needed for real-world planning applications while maintaining the transparency and flexibility that make open-source tools valuable. At the same time, it aims to move beyond the limitations of proprietary software by building a tool that can evolve openly with the needs of the energy transition.
Speakers
avatar for Fabian Hofmann

Fabian Hofmann

Senior Energy System Modeller, Open Energy Transition
Fabian is a Senior Energy System Modeller and core developer of the PyPSA ecosystem. He has developed PyPSA since 2016 and has played a significant role in shaping its trajectory, while creating complementary tools and mostly focusing on enhancing the user experience with PyPSA. Holding... Read More →
Wednesday September 16, 2026 13:30 - 13:40 CEST
Seebühne
 
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