Quest Operation

National Grid Transco PLC
19 April 2005

National Grid Transco plc (NGT)

19 April 2005

QUALIFYING EMPLOYEE SHARE OWNERSHIP TRUST (Quest)

(Notification of Directors' Interests pursuant to Section 324(2)

of the Companies Act 1985)

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Yesterday, each of the following NGT Executive Directors:

E M Astle, S J Holliday, S Lucas, N P Winser and R J Urwin,

technically ceased to be interested in 26,604 NGT Ordinary shares,

by virtue of the Quest transferring the shares to employees.

(Note: For Companies Act purposes, the Executive Directors named above

are deemed to have a technical interest in the shares held in NGT's Quest,

together with all participating employees. The interest ceases when shares are
transferred to participants who exercise their Sharesave scheme options.)

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


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