
A brief synopsis of the results and performance of the Company (see Important Information).
This Performance Summary is extracted from, and should be read in conjunction with, National Grid plc’s Annual Report and Accounts 2007/08 (ARA) and Annual Review 2007/08. This Performance Summary is provided for information only, contains forward looking statements, and is not intended to be a substitute for reading the ARA or Annual Review. In particular, this Performance Summary does not constitute summary financial statements and does not contain sufficient information to allow for as full an understanding of the results and state of affairs of the Company, and the principal risks and uncertainties facing National Grid, as would be provided by the full ARA. Copies of the full Annual Report and Accounts 2007/08 and Annual Review 2007/08 are available via the National Grid website and Capita Registrars — telephone 0871 664 0500.