Issue of Debt

National Grid PLC
28 June 2006

                                 National Grid plc

                        EURO MEDIUM TERM NOTE PROGRAMME


National Grid plc announces that it has today issued EUR 600,000,000 Floating
Rate Instruments due June 2010 Series No 33, as part of the National Grid plc
and National Grid Electricity Transmission plc EUR 12,000,000,000 Euro Medium
Term Note Programme.




28 June 2006




Contact:  Andrew Kluth (Tel: [phone])


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