He is also a member of the university's Energy Sources and Policy Cluster. His research and teaching focus on improving understanding of the environmental, social, economic, and technical dynamics of the global energy system. He teaches courses in international environmental policy and energy systems analysis. A central focus of his research involves empirical analysis of the process of innovation and technological change. He is particularly interested in how the outcomes of this line of research can inform public policy related to improvements in low-carbon energy technologies. His work is motivated by a more general interest in issues related to energy and the environment, including how government actions can expand access to energy services while reducing their environmental impacts.