Congestion Risk Indicators (CRI)
Each day Elia determines the “Congestion Risk Indicators (CRI)” as part of the management of congestion risks for the Belgian grid
Below tables indicate the level of congestion risks in the electrical zones
CRI in upward direction
CRI in downward direction
Disclaimer
Legend
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CRI in upward directionA CRI in the upward direction indicates a congestion risk if the net injection in the electrical zone would increase.
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CRI in downward directionA CRI in the downward direction indicates a congestion risk if the net injection in the electrical zone would decrease.
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CRI levels
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.
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Zonal Active Power Cap (MW)
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
Reports about CRI
“Yearly report about CRI levels and electrical zones” (coming soon)Useful links
