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| Constraint Group | Date/Time | Limit (MW) | Flow (MW) | Utilization (%) |
|---|
Constraints on the transmission system happen when power flows approach or exceed the safe operating capacity of a boundary or transmission line. These constraints are managed by the National Grid ESO to ensure grid stability and security.
The colored boundaries on this map represent transmission system constraint boundaries as defined in the National Grid ESO's boundary reports. Colors indicate flow status relative to the boundary's limit.
Data shown is based on day-ahead constraints and flow forecasts.