System map
GB grid flows
Measured interconnector exchanges and day-ahead transmission-boundary forecasts, shown together without mixing actual and forecast data.
Schematic · not a circuit diagram
Boundary <75%75–90%90–100%At/above limitImportExport
Live exchange data · Not availableBoundary forecast source · Not available
Cross-border exchangesElexon FUELINST · measured every five minutes
Transmission boundariesNESO day-ahead constraint flows and limits
Map geometryNESO network diagrams · schematic GridCurrent placement