Financial Timetable- Update

National Grid PLC
11 December 2007



National Grid plc ('National Grid ')

11th December 2007

National Grid Financial Timetable
for the year ending 31 March 2009


National Grid plc's interim dividend 2007/08 of 11.7p per share will be paid on
23 January 2008. Following that, National Grid's Financial Timetable is
currently scheduled as follows:


31 January 2008              Interim Management Statement
15 May 2008                  2007/08 preliminary results *
4 June 2008                  Ordinary shares go ex-dividend
6 June 2008                  Record date for 2007/08 final dividend
June 2008                    Annual Report posted to shareholders*
9 July 2008                  DRIP election date for 2007/08 final dividend
Late July 2008               Annual General Meeting International Convention Centre,
                             Birmingham.

                             And Interim Management Statement
20 August 2008               2007/08 final dividend paid to qualifying ordinary shareholders
20 November 2008             2008/09 half year results*
3 December 2008              Ordinary shares go ex-dividend
5 December 2008              Record date for 2008/09 interim Dividend.
5 December 2008              DRIP election date for 2008/09 interim dividend
21 January 2009              2008/09 interim dividend paid to qualifying ordinary shareholders



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

----------------------------------------------------------------------------------------------------

Contact:          D C Forward, Assistant Secretary (0207 004 3226)




                      This information is provided by RNS
            The company news service from the London Stock Exchange