Reasons behind this project
EU Regulation 2017/1485 (the System Operation Guideline, SO GL) places clear obligations on TSOs: they must collect and exchange dynamic stability data with neighbouring operators, perform annual coordinated stability assessments using a common grid model, and ensure that Significant Grid Users (SGUs) and HVDC system owners provide the models needed for dynamic simulation. These obligations are legally binding — yet the Regulation says nothing about how to fulfil them technically.
The result is a significant implementation gap. There is no standardised structure for dynamic data exchange, no shared methodology for merging individual component models into a system-wide simulation, no agreed validation procedure, and no common approach to version control or model provenance. Each TSO navigates these challenges independently, at the cost of consistency, efficiency and cross-border comparability.
Objectives
COLib-SOGL provides TSOs with the technical architecture, processes and simulation methodology needed to comply with their SO GL obligations for dynamic data exchange and stability assessment — covering conventional equipment, HVDC systems, SGUs and FACTS devices.
Concretely, the project defines standardised data exchange structures combining IEC 61970-457 and FMI-based equation-level model exchange (with versioning, provenance and quality metadata); specifies the obligations and formats for SGUs and HVDC owners to supply usable models and event data; develops step-by-step simulation workflows showing how dynamic model data is assembled into a system-wide model built on top of the Common Grid Model; and proposes a shared methodology for coordinated dynamic stability assessments.
A pilot study demonstrates the end-to-end workflow with selected SGUs and a cross-border TSO data exchange. Deliverables are designed for promotion to ENTSO-E for wider European adoption. The project builds directly on COLib as its model repository, and depends on COLib-EB for executable equation-based model representations.
Project partners
gridDigIt, SuperGrid Institute, RTE and SPEN. The project is looking for additional partners.