On 8 April 2015, the French Government appointed Didier Houssin as Chairman and CEO of IFP Energies Nouvelles (IFPEN). He takes over from Olivier Appert whose mandate has come to an end after 12 years at the helm of IFPEN.

A graduate of the Institut d'Études Politiques de Paris (1977) and the École Nationale d'Administration (1983), he worked in international roles at the French Ministry of Industry from 1983 to 1987, before being seconded to TOTAL until 1990.
Didier Houssin then served as Deputy Director of Economic and Financial Affairs at the Ministry of Industry, followed by Director of Energy and Mineral Resources from 1997 to 2004, before being appointed Managing Director of the French Geological Survey (BRGM).

From July 2007 to October 2012, he was Director of Energy Markets and Security at the International Energy Agency (IEA). In this role, he was responsible for analyzing  energy markets, in particular oil, gas, electricity and renewable energies, and overseeing security of supply. Since December 2012, he has been Director of Sustainable Energy Policy and Technology at the IEA. In this role, he was responsible for the development of low-carbon technologies and energy transition (ETP scenarios  to 2050, technology roadmaps, carbon capture and sequestration and  the IEA's international RD&D network).