Issue of Debt

National Grid PLC
25 August 2006

                                National Grid plc

                        EURO MEDIUM TERM NOTE PROGRAMME



National Grid plc announces that it has today issued US$ 47,500,000 Floating
Rate Instruments due 2009 Series No 40, as part of the National Grid plc and
National Grid Electricity Transmission plc Euro 12,000,000,000 Euro Medium Term
Note Programme.





25 August 2006





Contact:  Andrew Kluth (Tel: [phone])


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