DRIP operation

National Grid PLC
14 February 2007

14th February 2007



Notification of Directors' Interests:
(Dividend Reinvestment Plan)

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NG's Registrars yesterday notified us that, following the operation of the NG
Dividend Reinvestment Plan (DRIP), Mark Fairbairn became interested in an
additional 227 ordinary shares purchased at 753.5p per share on 24 January 2007.



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Contact: D C Forward, Assistant Secretary- 0207 004 3226


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