TwinEU advances the digitalisation of the European energy system by identifying key challenges and opportunities in system planning, operation, and market coordination. It consolidates insights from previous initiatives to enhance data interoperability and proposes solutions for bridging gaps in communication protocols and system integration. Stakeholder engagement helps define requirements for a digital twin ecosystem, while technological constraints of AI, HPC, and existing digital twins are analysed to shape future development. A vision for use cases is formalised, along with validation criteria and KPIs.
A reference architecture is designed to support federated digital twin infrastructure, aligned with EU standards and initiatives. Functional and technical specifications are developed, addressing interoperability, regulatory compliance, and cybersecurity. The architecture supports edge-level integration and aligns with smart grid frameworks.
The platform is implemented with a federated interface, immersive XR capabilities, and a big data/AI marketplace. Data sharing strategies and governance models are established, ensuring secure, scalable, and trustworthy data exchange. The system enables real-time monitoring, simulation, and coordination across local and pan-European digital twins.
The developed solutions are being implemented and validated in eight large-scale demonstrators:
1. Iberian Peninsula – Transmission, distribution and market Digital Twins for security, resilience and cross-system coordination.
2. Eastern Mediterranean – Digital Twin for the Cyprus–Crete interconnection and optimised cross-island balancing market.
3. Hungary – Conductor temperature monitoring using Artificial Neural Networks and optimisation of day-ahead and intraday market coupling.
4. Bulgaria – Congestion management, distributed energy resources forecasting and flexibility resource planning.
5. Germany – Integrated TSO/DSO flexibility management using commercial and open-source tools.
6. Italy – Simulation of defence systems and immersive CAD-based planning for the Sardinia grid.
7. Slovenia – Fast-frequency response and enhanced dynamic security assessment.
8. France/Netherlands – Cybersecurity and resilience with a Control Room of the Future and integrated cyber-range.