Transmission Network Performance Report 2005 - National Grid

WelcomeFY2005FY2005 Transmission Reliability Performance ReportThis report has been prepared for National Grid’s customers and other interestedparties. The intention of this report is to provide its recipients information on NationalGrid’s transmission reliability performance for Fiscal Year 2005 (April 1, 2004 throughMarch 31, 2005). Performance trends over the previous years have also beenprovided.National Grid, through its operating subsidiary companies, owns and operatestransmission assets in New England (in Massachusetts, Rhode Island and NewHampshire) and New York. In terms of this report, transmission is considered toconsist of National Grid assets, operating at 69,000V and above in New England and115,000V and above in New York, in these States only. This report providesinformation about the performance of National Grid’s transmission system.National Grid USA is a registered public utility holding company headquartered in Westborough,Massachusetts. National Grid USA does not directly own or operate any facilities for the transmissionor distribution of electricity; rather, such facilities are owned and/or operated directly by National GridUSA operating subsidiary companies. However, for ease of reference and for the convenience of thereader, the terms “National Grid” or “Company” shall be used in this document to refer to thetransmission facilities and assets owned and/or operated by one or more of the subsidiary companiesof National Grid USA.This document is made available with the expressed understanding that neither National Grid USAnor any of its affiliates, officers, directors, employees or agents assumes or makes any representationwith respect to the contents, accuracy or completeness of this document. No part of this documentmay be copied, reprinted or reproduced without the permission of National Grid USA.© Copyright National Grid 20052 National Grid Performance Report