Investor diary dates for 2005

National Grid Transco PLC
10 January 2005



National Grid Transco plc ('NGT')

10 January 2005

National Grid Transco calendar - investor diary dates for 2005.


Key events scheduled in the year ahead are as follows:

4 March 2005         IFRS analyst and investor briefing

24 March 2005        National Grid Transco close period trading update for the
                     year ending 31 March 2005

19 May 2005          2004/05 preliminary results announcement

25 July 2005         Annual General Meeting

End September 2005   National Grid Transco close period trading update for the
                     6 months ending 30 September 2005

17 November 2005     2005/06 interim results announcement


Note: the 2004/05 interim dividend will be paid on 24 January 2005. The 2005/06
financial timetable will be announced around the end of the current financial
year.
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Contact: D C Forward, Assistant Secretary, 0207 004 3226



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