UK Power Networks (UKPN) is a distribution network operator for electricity covering South East England, the East of England and London. It manages three licensed distribution networks (Eastern Power Networks, South Eastern Power Networks and London Power Networks) which together cover an area of square kilometres and approximately eight million customers.
As well as the three distribution arms, UK Power Networks also operates UK Power Networks Services Holdings Limited, which develops and maintains electrical networks for customers including London Underground, Heathrow and Stansted airports, Docklands Light Railway and Canary Wharf. UK Power Networks maintains the electricity networks including the lines and electricity cables. There are 14 distribution network operators (DNOs), each responsible for a different area of the country. These DNOs are all regulated by Ofgem.
The area originally comprised three networks: the London Electricity Board, the Eastern Electricity Board and the South Eastern Electricity Board, known as SEEBOARD, before being brought together by EDF Energy to form EDF Energy Networks. UK Power Networks began operations in October 2010 after the sale of EDF Energy Networks to the Cheung Kong Group for a reported ã5.5 billion.
In 2011 UK Power Networks was awarded ã6.7 million by Ofgem for its Flexible Plug and Play project, in which it was researching new ways, technical and commercial, to connect renewable energy to the distribution network in Cambridgeshire. It was awarded ã25 million in 2014 from Ofgem's Low Carbon Networks Fund for the Low Carbon London project.
UK Power Networks is owned by Cheung Kong Infrastructure Holdings (40%), Power Assets Holdings (40%), and The Li Ka Shing Foundation (20%).
In February 2026, Engie reached an agreement to purchase UKPN for ã10.5 billion.
UK Power Networks operate an with material released under either Creative Commons Attribution 4.0 International licensing or alternatively UK Open Government3.0 () licensing where necessary.