Financial Timetable

National Grid PLC
09 January 2007



National Grid plc ('National Grid ')



9th January 2007



National Grid Financial Timetable

for the year ending 31 March 2008



National Grid's Financial Timetable is currently scheduled as follows:


29 March 2007      Trading Update
17 May 2007        2006/07 preliminary results *
6 June 2007        Ordinary shares go ex-dividend
8 June 2007        Record date for ordinary shares 2006/07 final dividend
June 2007          Annual Report posted to shareholders*
11 July 2007       DRIP election date for 2006/07 final dividend
Late July 2007     Annual General Meeting
                   International Convention Centre, Birmingham.
7 August 2007      Proposed payment date for B share continuing dividend
22 August 2007     2006/07 final dividend paid to qualifying ordinary
                   shareholders
15 November 2007   2007/08 half year results*
28 November 2007   Ordinary shares go ex-dividend
30 November 2007   Record date for ordinary shares 2007/08 interim
                   Dividend
7 December 2007    DRIP election date for 2007/08 interim dividend
23 January 2008    2007/08 interim dividend paid to qualifying ordinary
                   shareholders



* Documents made available on the National Grid website (www.ngrid.com)

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Contacts:        Deborah Taylor, Investor Relations (0207 004 3169) or
                 D C Forward, Assistant Secretary (0207 004 3226)


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