Joan MacNaughton is an influential figure in the energy and climate policy debate, having been Director General of Energy in the UK, overseeing the energy agenda during the UK Presidency of the EU and leading work on the energy proposals agreed at the G8 Gleanagles Summit. She is Executive Chair of the World Energy Trilemma for the World Energy Council, an annual assessment of the quality of 129 countries’ energy policies. From 2004 to 2006, MacNaughton was Chair of the Governing Board of the International Energy Agency, helping redefine IEA strategy and leading the response to supply disruption caused by Hurricane Katrina. From 2007 to 2011, she led Alstom's policy department and spearheaded the company's clean power advocacy, and until the end of 2012 she was Alstom's Global Adviser on Sustainable Policies. In 2012 she was Vice Chair of the UN High Level Panel on the Clean Development Mechanism. MacNaughton is an Honorary Fellow and Past President of the Energy Institute, Chair of the Energy Academy of Europe International Advisory Board, an IETA Fellow and former member of the IETA Board, and Trustee of the Climate Group. She has served on numerous other academic, public and private sector boards, including the Argonne National Energy Laboratory (chairing the Budget Committee), and continues on several others. She has lectured extensively on energy and climate policy, and is an experienced moderator of high level discussions such as Public-Private roundtables at the annual Clean Energy Ministerial meetings.