Mr Cook takes on what is a new post following a restructure of the networks division. He joins Ofgem from the Energy and Utilities Consulting Practice of PA Consulting Group. He has a wide experience of the utilities industry gained from work with the industry players over the past 18 years.

He was an adviser to the industry during the first transmission price control and led the design of commercial arrangements for the competitive Scottish retail market. Most recently, he has been working with Ofgem’s markets division on wholesale and retail policy.

Alistair Buchanan, CEO of Ofgem, said: Transmission policy remains pivotal to the successful operation of the GB energy markets and to the achievement of government energy policy. Stuart’s experience as an advisor in regulation, strategy and delivery of change will equip him strongly to guide Ofgem in its work with the industry and other stakeholders to shape this crucial area of our operation.