Dr. Volker Krey is the Deputy Program Leader of the Energy Program at the International Institute for Applied Systems Analysis (IIASA) which he joined in October 2007. He graduated in theoretical physics from the University of Dortmund in 2002. In 2003 he joined the Institute of Energy Research - Systems Analysis and Technology Evaluation of the Research Centre Jülich, where he continued to work until 2007. Since 2006 he has held a PhD in mechanical engineering from the Ruhr-University Bochum.

Dr. Krey’s main fields of scientific interest are the integrated assessment of climate change and the main energy challenges of the 21st century, including energy security and energy access. His work focuses on the development and application of integrated assessment models with different regional focuses (national to global scale) and time horizons. In addition, decision making under uncertainty, in particular in the context of future energy transitions and climate change mitigation strategies has been an important part of Dr. Krey's research activities.

He has been appointed a Lead Author of the recently published IPCC Special Report on Renewable Energy Sources and Climate Change Mitigation, a Lead Author of the Global Energy Assessment (GEA), and a Lead Author of the IPCC 5th Assessment Report which is scheduled for publication in 2014. Since 2010 he is an Associate Deputy Editor of the interdisciplinary journal Climatic Change. Dr. Krey also teaches in an MSc program on "Renewable Energy in Central and Eastern Europe" at the Vienna University of Technology (Austria).