Purchase of Own Securities

National Grid Transco PLC
04 March 2003

Announcement Dated: 4 March 2003


                  National Grid Transco - repurchase of shares

National Grid Transco plc announces that on 3 March 2003 it purchased for
cancellation 500,000 of its ordinary shares at a price of 404.2759 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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