Purchase of Own Securities

National Grid Transco PLC
06 March 2003





Announcement Dated: 6 March 2003


                  National Grid Transco - repurchase of shares

National Grid Transco plc announces that on 5 March 2003 it purchased for
cancellation 1,050,000 of its ordinary shares at a price of 399.0104 pence per
ordinary share.



Enquiries:



Investors

Marcy Reed          [phone]               [phone] (m)

Terry McCormick     [phone]               [phone] (m)

Louise Clamp        [phone]               [phone] (m)



Media

Gillian Home          [phone]

Jim Willison          [phone]

Clive Hawkins          [phone]


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