Indication of the level of congestion risk per electrical zone.Elia determines the “Red Zones” as part of the management of congestion risks for the Belgian grid.An incremental red zone indicates a congestion risk if the net injection in the zone would increase. The increase of net injection in the zone is limited depending on the risk severity.A decremental red zone indicates a congestion risk if the net injection in the zone would decrease. The decrease of net injection in the zone is limited depending on the risk severity.