Total Voting Rights

National Grid PLC
21 December 2007

21st December 2007



National Grid plc (National Grid)



Voting Rights and Capital update

Transfer of Shares- to Sharescheme Trustee



National Grid has been notified that 100,000 shares held in Treasury were
transferred today; to ExcellerateHRO Share Plan Services (Guernsey) Limited, the
Trustee of the The National Grid Performance Share Plan (the 'Plan'). This will
allow the Trustee to satisfy future releases of shares to scheme participants
from the Trust.



Following this change, National Grid plc's registered capital consists of
2,581,913,516 ordinary shares, of which 29,006,898 have been purchased in the
market and registered as Treasury Shares; leaving a balance of 2,552,906,618
shares with voting rights.



The figure of 2,552,906,618 may be used by shareholders as the denominator for
the calculations by which they will determine if they are required to notify
their interest in, or a change to their interest in, National Grid plc under the
FSA's Disclosure and Transparency Rules.



Note: This notification confirms actual capital as recorded on the register at
the above date, allowing for changes recorded since the last notification.
National Grid is currently undertaking a share repurchase programme.  Where
repurchases are made, separate covering announcements will, as required,
identify numbers being repurchased and the supporting details indicate resultant
share capital after market settlement and transfer to Treasury, or cancellation,
of the shares involved (and any earlier repurchases which remain to be
registered).


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