LF Energy Summit Europe 2026

Distribution system operators (DSOs) must manage increasingly complex grids with renewable generation, electrification, sector coupling, and active assets, especially at the low voltage level. Today’s grid control systems, however, are often monolithic, proprietary, and hard to extend, limiting interoperability and innovation. OpenEnergyTwin addresses this issue as an open source reference implementation for modular grid control systems. It provides a modular, event-driven digital twin infrastructure, capable of integrating all grid levels of a DSO, thereby creating a runtime environment for next-generation grid control services, including AI-based assistance and automation. The platform connects operational technology to a CIM-based digital twin core through flexible protocol adapters for topology, measurements, and state assessment, and exposes standardized interfaces for HMIs, alerting, forecasting, and control applications. Using publish-subscribe communication and CIM/JSON-LD, OpenEnergyTwin enables event-driven, standardized data exchange across all services. This talk presents key results of the research project, in which the OpenEnergyTwin platform has been developed.