Publication of Prospectus

National Grid PLC
20 March 2007

Publication of Final Terms

The following final terms has been approved by the UK Listing Authority and is
available for viewing:



Final Terms in relation to National Grid plc's issue of EUR 250,000,000 4.125
per cent. Instruments due 2013 under the National Grid plc / National Grid
Electricity Transmission plc Euro 12,000,000,000 Euro Medium Term Note Programme

To view the full document, please paste the following URL into the address bar
of your browser.

http://www.rns-pdf.londonstockexchange.com/rns/3480t_-2007-3-20.pdf

For further information, please contact

Andrew Kluth 
Assistant Treasurer
National Grid plc 
1-3 Strand 
London WC2N 5EH

Tel:     [phone]
Fax:     [phone]

Clive Hawkins
Media Relations
National Grid plc 
1-3 Strand 
London WC2N 5EH

Tel:     [phone]
Fax:     [phone]

DISCLAIMER - INTENDED ADDRESSEES

Please note that the information contained in the Final Terms may be addressed
to and/or targeted at persons who are residents of particular countries
(specified in the Prospectus for the National Grid plc / National Grid
Electricity Transmission plc Euro 12,000,000,000 Euro Medium Term Note Programme
dated 11 August 2006) only and is not intended for use and should not be relied
upon by any person outside these countries. Prior to relying on the information
contained in the Final Terms you must ascertain from the Prospectus whether or
not you are part of the intended addressees of the information contained
therein. 

Your right to access this service is conditional upon complying with the above
requirement.  



                      This information is provided by RNS
            The company news service from the London Stock Exchange