From Code to Models-as-Data: GEMS, a High-Level Language for Energy System Modeling

Event Recap: FOSDEM 2026 TL;DR At FOSDEM 2026, Antoine Oustry (RTE) presented GEMS (Generic Energy Systems Modelling Scheme), a graph-based algebraic modeling language that treats mathematical component models as data rather than software code, with the goal of enabling more flexible and maintainable energy system modeling. Watch the presentation From Code to Models-as-Data Oustry opened by explaining that the word “model” can mean different things in energy system modeling. Here, the term is…