Lessons learnt on the EEAC method for fast contingency screening on RTE use-cases

The ongoing transformation of power systems, driven by large-scale integration of renewable energy sources and significant increase in cross-border interconnections, is leading to increasingly diverse and complex operating conditions. Therefore, defining operational guidelines based on offline studies that are both sufficiently simple to implement and not overly conservative has become increasingly challenging. This pushes RTE (the French TSO) to rely on transient stability analysis performed in real-time.