Holding(s) in Company

National Grid PLC
13 November 2006

Monday 13 November 2006

National Grid plc ('NG.')



Notification of Interest in National Grid plc Ordinary Shares;

Pursuant to Section 198 of The Companies Act 1985.


NG today received a further notification from The Capital Group Companies, Inc.;
that its notifiable interest in NG's ordinary shares was 3.75% (102,067,366
ordinary shares) at 9 November 2006.






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