Dermot joined Ofgem as Chief Executive Officer in March 2014. He brings with him extensive leadership experience in energy regulation, market competition and the protection of consumers' interests having most recently been Commissioner at the Commission for Energy Regulation in Ireland from May 2008 and its Chair since May 2011. Prior to this, he was Senior Economic Adviser at the Commission for Communications Regulation and was manager of the mergers division for the Irish Competition Authority. A graduate of Trinity College Dublin, he undertook further study at Yale where he gained a PhD in Economics. He has lectured at the University of London, specialising in the areas of market structures and firm performance.