Medium Term Note Programme

National Grid PLC
29 March 2007

                                National Grid plc

                        EURO MEDIUM TERM NOTE PROGRAMME





National Grid plc announces that it has today issued GBP 50,000,000 5.25 per
cent Instruments due 2011, Series No 31 Tranche 2, as part of the National Grid
plc / National Grid Electricity Transmission plc EUR 12,000,000,000 Euro Medium
Term Note Programme.





29 March 2007



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