Tim Lieuwen is the interim executive vice president for Research (EVPR) at the Georgia Institute of Technology. In this role, he oversees the Institute’s $1.45 billion portfolio of research, economic development, and sponsored activities. This includes leadership of the Georgia Tech Research Institute (GTRI), the Enterprise Innovation Institute, nine interdisciplinary research institutes (IRIs), and related research administrative support units.

In his 25-plus years at Georgia Tech, Liuewen earned his master's and Ph.D. degrees in mechanical engineering (1996 and 1999, respectively) and has held multiple leadership positions. He has been the executive director of the Strategic Energy Institute (SEI) since 2012 and began serving as the interim chair of the Daniel Guggenheim School of Aerospace Engineering in 2023.

Lieuwen has received numerous honors and recognition for his work in clean energy systems and policy, national security, and regional economic development. Additionally, he has been awarded the titles of Regents’ Professor and the David S. Lewis, Jr. Chair in AE. He is also a member of the National Academy of Engineering and is a fellow of the American Society of Mechanical Engineers and the American Institute of Aeronautics and Astronautics.

Richard Simmons is currently a Principal Research Engineer and Fellow at Georgia Tech’s Strategic Energy Institute (SEI) where he directs cross-cutting energy projects with an emphasis on clean electric power, vehicle efficiency and alternative fuels. Simmons is also director of the Energy Policy and Innovation Center (EPICenter) whose objective is to perform research and outreach in energy policy and innovation with a distinctively regional perspective. He is also a part-time instructor in Georgia Tech’s Woodruff School of Mechanical Engineering, with a specialization in design, mechatronics and thermal systems. 

Simmons received his BS from Georgia Tech, and MS and Ph.D. from Purdue, all in Mechanical Engineering. He is a licensed professional engineer (PE) with more than 20 years of RD&D experience in automotive, advanced materials, and alternative energy and fuels. 

From 2009 to 2012, he served a prestigious American Association for the Advancement of Science S&T (Science and Technology) Policy Fellowship at the U.S. Department of State, providing technical analysis on international policy issues related to renewable energy. He has recently authored numerous publications including an open-access eBook entitled “Understanding the Global Energy Crisis” (Purdue Press, 2014), several book chapters and journal articles related to advanced energy technologies, transportation energy technology, and future energy policy strategies.