Jan Horst Keppler is professor of economics at the Université Paris–Dauphine, where he directs the Chair European Electricity Markets (CEEM). His principle research is on the competitiveness of low carbon technologies such as nuclear energy and renewables, taking into account their full costs at the system level. He is also senior economic advisor at the OECD Nuclear Energy Agency. Recent publications include« Rationales for Capacity Remuneration Mechanisms » (Energy Policy, 2017), « Intermittent Renewable Production and the Convergence of French and German Electricity Prices » (The Energy Journal, 2016), Nuclear Energy and Renewables: System Effects in Decarbonising Energy Systems (2012) as well as The Econometrics of Energy Systems (2007). Current work includes the study of optimal transport infrastructure provision with growing shares of variable renewables. Professor Keppler intervenes regularly in the media and is a member of the Exchange Council of EPEX Spot, the European electricity market operator.