Directors Technical Interests

National Grid Transco PLC
15 July 2004


15 July 2004

National Grid Transco plc (NGT)

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Interests Notified by the Trustee of the Lattice Group Employee Share Ownership
Trust

(Notification of Directors' Technical Interests, Pursuant to Section 324(2) of
the Companies Act 1985)

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NGT today received a notification from Lattice Group Trustees Limited, as
Trustee of the Lattice Group Employee Share Ownership Trust (the 'Trust'),
operated in conjunction with the Lattice Group Short Term Incentive Scheme (the
'Scheme'). Following the transfer to participants of 223,105 NGT shares today,
Steve Lucas, together with other employees formerly with Lattice Group, have a
technical interest in the new balance of 6,981 NGT shares held in the Trust.

(Note: For Companies Act purposes, Steve Lucas is deemed to have a technical
interest in all the shares held in this Trust, together with all participating
employees. The interest ceases when shares are transferred to participants under
the rules of the Scheme.)

Contact: D C Forward, Assistant Secretary (020 7004 3226)


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