Joseph F. DeCarolis is a Professor and University Faculty Scholar in the Department of Civil, Construction, and Environmental Engineering at North Carolina State University. His research addresses energy issues at the intersection of engineering, economics, and public policy. He leads the development of next-generation energy system modeling tools that are open source, transparent, and designed to deliver policy-relevant insights. Dr. DeCarolis currently co-leads an ambitious open source modeling effort involving a large multi-institutional research team. He also leads an interdisciplinary faculty cluster at NC State focused on sustainable energy and established a university-wide Energy Collaborative. Prior to joining NC State, Dr. DeCarolis was an environmental scientist within the U.S. Environmental Protection Agency’s Office of Research and Development where his research examined the air quality impacts of future energy system development. He received his Ph.D. in Engineering and Public Policy from Carnegie Mellon University, and a B.A. from Clark University in Physics and Environmental Science & Policy.