Director/PDMR Shareholding

National Grid PLC
07 June 2007



7th June 2007


Director's Interests in National Grid plc (NG.) Ordinary Shares
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National Grid Share Matching Plan


Yesterday, the Trustee of the National Grid 1996 Group Employee Share Trust
(ESOP) confirmed that, on 6 June 2007, Nick Winser exercised the matching award,
over 14,059 NG. ordinary shares, granted to him under the National Grid Share
Matching Scheme operation in May 2004 (at nil cost to exercise). 8,283 of these
shares are retained by him, after disposing of 5,776 NG ordinary shares, at a
price of 751p yesterday, to meet statutory deductions.

Nick Winser's total interest after this event is over 410,182 ordinary shares.




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