Total Voting Rights

National Grid PLC
31 October 2007

31 October 2007



National Grid plc

Voting rights and capital - update

In conformity with the Transparency Directive, National Grid plc would like to
notify the market of the following:

National Grid has today been notified that 26,809 shares held in Treasury were
transferred late yesterday to share scheme participants. National Grid plc's
registered ordinary share capital as at close of 31 October 2007 consists of
2,595,793,987 shares, of which 13,106,561 have been purchased in the market and
registered as treasury shares, leaving a balance of 2,582,687,426 shares with
voting rights.

The figure of 2,582,687,426 may be used by shareholders as the denominator for
the calculations by which they will determine if they are required to notify
their interests in, or a change to their interest in, National Grid plc under
the Disclosure and Transparency Rules.

Note: this notification confirms the 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 of shares being repurchased and the supporting details will
indicate resultant share capital after market settlement and cancellation, or
transfer to treasury, of the shares involved (and any earlier repurchases that
remain to be registered).


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