LF Energy Summit Europe 2026

Several related power system planning model interoperability initiatives will share their latest progress, challenges, and real-world applications, including consideration of the differing needs of different end users. Panelists will discuss the potential to align efforts and the challenges and opportunities in delivering both a more effective and more streamlined future modeling experience for end users, from grid operators to energy ministries to civil society. Presenters will cover where models overlap, where models diverge, and what the realistic boundaries are for interoperability, and will invite participants to consider which standards will likely align and which will remain distinct, both in the electricity/TSO/DSO domain and in the sector coupling/multi-commodity domain. Session panelists and participants will discuss the anticipated ways that system planning modeling will change in the next decade and how to future-proof interoperability.

Participants may include: NLR (Sienna/GDM), Princeton (GenX), VTT/Nodal Tools (CESM), TU Berlin (PyPSA), OET, Encoord, TZ, RTE, AFRY, Recognis, EPRI, Imperial College (OSeMOSYS), ENTSO-E, SOPTIM (CGMES), Sylvan

On 28 April 2025, continental Spain and Portugal experienced a total blackout, while the rest of the European grid was largely unaffected. This most severe European blackout in over 20 years is analysed using a time-domain model of the Iberian system derived from an anonymised network snapshot. In its final report on the incident, ENTSO-E’s Expert Panel identifies LF Energy’s Dynaωo, an open-source, industrial-grade suite of simulation tools, as the basis for its independent voltage stability study. Simulations closely reproduce recorded measurements and clarify the roles of cross-border exchanges, TSO-DSO interactions, distributed renewable energy sources and limited reactive power margins in the voltage rise that triggered the cascade. The study highlights the value of relying on an open-source industrial tool and shows how Dynaωo has evolved into a robust, high-performance solution. The presentation will detail the modelling and simulation approach, key challenges, and the main insights gained on the 28 April 2025 events, demonstrating how Dynaωo delivers the level of transparency, reproducibility and scientific rigour now expected for the analysis of major power system events.