Jonathan Brearley has been Ofgem's Chief Executive Officer since February 2020. Previously, he was Ofgem's Executive Director for Systems and Networks from April 2018.

Jonathan has wide-ranging energy sector experience, having led Electricity Market Reform as the Director for Energy Markets and Networks at the Department of Energy and Climate Change (DECC).

Prior to this, he was Director of the Office of Climate Change, a cross-government strategy unit focussed on climate change and energy issues, where he led the development of the Climate Change Act. Earlier in his career, Jonathan was a senior adviser in the Prime Minister’s Strategy Unit.

He holds a Bachelor’s degree in Mathematics and Physics from Glasgow University and a Master’s degree in Economics from the University of Cambridge.