Congestion Risk Indicators (CRI)

CRI level shows the level of the congestion risk.

• An empty circle indicates a low CRI level : the congestion risk due to a change of net injection of active power in the electrical zone is estimated as low
• A half red circle indicates a medium CRI level : a congestion risk is identified in case a change of net injection of active power in the electrical zone occurs in the direction of the CRI level and is higher than the Zonal Active Power Cap;
• A full red circle indicates a high CRI level : a congestion risk is identified for any change of net injection of active power in the electrical zone in the direction of the CRI level

Medium and high CRI levels indicate that coordinable technical units are not authorized to deviate from their daily schedules in real-time in the direction of the CRI level. In these situations, Elia enforces all coordinable technical units in this electrical zone to return to their last valid daily schedule in case of deviations in the direction of the CRI according to the modalities described in the Scheduling Agent contract.

The Zonal Active Power Cap indicates the maximum increase or decrease of active power net injection allowed in an electrical zone with a medium CRI level without creating a congestion