UK Power Networks is a distribution network operator

Distribution Network Operator

Distribution network operators are companies licensed to distribute electricity in Great Britain by the Office of Gas and Electricity Markets....

 for electricity

Electricity

Electricity is a general term encompassing a variety of phenomena resulting from the presence and flow of electric charge. These include many easily recognizable phenomena, such as lightning, static electricity, and the flow of electrical current in an electrical wire...

 covering South East England

South East England

South East England is one of the nine official regions of England, designated in 1994 and adopted for statistical purposes in 1999. It consists of Berkshire, Buckinghamshire, East Sussex, Hampshire, Isle of Wight, Kent, Oxfordshire, Surrey and West Sussex...

, the East of England

East of England

The East of England is one of the nine official regions of England. It was created in 1994 and was adopted for statistics from 1999. It includes the ceremonial counties of Essex, Hertfordshire, Bedfordshire, Cambridgeshire, Norfolk and Suffolk. Essex has the highest population in the region.Its...

 and London.

The area previously comprised three networks known as the London Electricity Board, Eastern Electricity, and South Eastern Electricity board, before being brought together by EDF Energy

EDF Energy

EDF Energy is an integrated energy company in the United Kingdom, with operations spanning electricity generation and the sale of gas and electricity to homes and businesses throughout the United Kingdom...

 to form EDF Energy Networks.

UK Power Networks began operations in October 2010 following the sale of EDF Energy Networks to Cheung Kong Infrastructure Holdings

Cheung Kong Infrastructure Holdings

Cheung Kong Infrastructure Holdings or CKI, is the largest publicly listed infrastructure company in Hong Kong with diversified investments in energy infrastructure, transportation Infrastructure, water Infrastructure and infrastructure related business, parented by Cheung Kong Holdings,...

, Power Assets Holdings

Power Assets Holdings

Power Assets holdings Limited Previously known as Hong Kong Electric Holdings is a electricity company investment holding based in Hong Kong. It hold 13 power plants, seven electricity distribution networks as well as a gas distribution network in the global....

 and The Li Ka Shing Foundation in July 2010.