Total Voting Rights

Centrica PLC
                  

30 March 2007

Centrica plc ('the Company')

Total Voting Rights

In conformity with the Disclosure and Transparency Rules ('the Rules'), we
notify the market of the following:

At the date of this notice, the issued capital of the Company comprises
3,664,223,389 ordinary shares. All of these shares carry voting rights of one
vote per share.

The Company does not currently hold any shares in treasury.

The above figure of 3,664,223,389 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, the Company under the
Rules.

Robin Healy

Centrica plc

01753 494 017