Group Summary

National Grid Transco is one of the world's largest utilities, focused on delivering energy safely, reliably and efficiently. We own and operate the high-voltage electricity system in England and Wales and the high pressure gas transmission system in Britain. We also have electricity transmission systems in northeastern US and manage further electricity transmission assets in the US Midwest. Our local distribution networks deliver gas to some 21 million homes, offices and factories in Britain. We distribute electricity in the northeastern US to approximately 3.2 million customers and gas in upstate New York to around 550,000 customers. We also have a number of businesses operating in related areas such as communications infrastructure, metering and interconnectors.