Directorate Change

National Grid PLC
12 July 2007

12 July 2007



National Grid plc





National Grid Appoints US Board Director



The Board of National Grid plc is pleased to announce the appointment of Tom
King as an Executive Director with effect from 13 August 2007.  Tom will be
based in the US and will have responsibility for the electricity distribution
and generation businesses.



Tom has more than 20 years of experience in the US energy industry.  Most
recently he was CEO of Pacific Gas and Electric Company, which is one of the
largest investor-owned gas and electric utilities in the US, serving northern
and central California. Tom was part of the leadership that, after its
re-emergence from bankruptcy, established PG&E on its journey to a top
performing utility, improving operational performance and significantly
improving customer service and its credibility with the regulator.



National Grid Chairman, Sir John Parker, commented:



'We are pleased to welcome Tom to the National Grid Board. He brings a wealth of
operational expertise and experience from the US electricity and gas industry.'



Steve Holliday, National Grid Chief Executive, added:



'I am delighted that Tom will be joining us; he has the ideal background in both
electricity and gas industries.  He also has a great track record of
implementing change, to drive improvements in reliability and customer service.
His appointment is an important final step in building the management team at
National Grid to drive the business to a new level as we near the completion of
KeySpan.'





Contacts



National Grid:



Investors

David Rees                [phone]           [phone] (m)

Richard Smith             [phone]           [phone] (m)

James Waite               [phone]           [phone] (m)



Media

Clive Hawkins             [phone]            [phone] (m)



Brunswick:

Paul Scott                [phone]            [phone](m)



Photographs can be found at www.newscast.co.uk.





Notes



Tom King



Tom was President of PG&E Corporation and Chairman and CEO of Pacific Gas and
Electric Company from 2003-07. Before that, he served as Senior Vice President
of PG&E Corporation, and as President of PG&E National Energy Group; having
joined PG&E Gas Transmission as President in 1998.



Prior to PG&E, he served as President and Chief Operating Officer of Kinder
Morgan Energy Partners. He previously spent eight years, from 1989 to 1997, with
Enron in a series of senior operating positions with its affiliates, Enron
Liquid Services, Northern Natural Gas Company, Transwestern Pipeline Company and
Northern Border Pipeline Company. He also held positions at Cabot Corporation's
natural gas unit, Cabot Transmission Corporation, and the Panhandle Eastern
Corporation.



Tom was awarded a bachelor's degree in business administration from Louisiana
State University and is a graduate of the University of Michigan's executive
management programme. He also successfully completed the Nuclear Reactor
Technology Programme at the Massachusetts Institute of Technology.





National Grid



National Grid plc (LSE:NG.; NYSE:NGG) is an international energy delivery
business with principal activities in the regulated electricity and gas
industries in the US and UK.



In the US, National Grid transmits and distributes electricity and natural gas
to over 4 million customers across 29,000 square miles of Massachusetts, New
Hampshire, New York and Rhode Island. In 2006 National Grid announced the
acquisition of KeySpan, the largest gas distributor of natural gas in the
Northeast US, operating  regulated gas utilities in New York, Massachusetts and
New Hampshire that serve 2.6 million customers. KeySpan is also the largest
electricity generator in New York State, providing power to 1.1 million
customers of Long Island Power Authority (LIPA) on Long Island and supplies
approximately 25% of New York City's capacity needs. KeySpan also operates
LIPA's electricity transmission and distribution system under contract to LIPA.



In the UK, National Grid owns the high-voltage electricity transmission network
in England and Wales and operates the system across Great Britain. It also owns
and operates the high-pressure gas transmission system in Britain and, through
its natural gas distribution business serves over 11 million customers in homes
and businesses in Britain. National Grid also has a number of businesses
operating in related areas such as LNG importation, land remediation, metering
and interconnectors.  For more information: www.nationalgrid.com.


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