Total Voting Rights

National Grid PLC
23 January 2008

23 January 2008

National Grid plc (National Grid)

Voting Rights and Capital update

National Grid was notified today that 14,382 shares held in Treasury were
transferred late yesterday to share scheme participants. Following this change,
National Grid plc's registered capital consists of 2,581,913,516 ordinary
shares, of which 41,869,592 have been purchased in the market and registered as
Treasury Shares; leaving a balance of 2,540,043,924 shares with voting rights.

The figure of 2,540,043,924 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).


                      This information is provided by RNS
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