Dr. Peng Peng is a Research Scientist in the Sustainable Energy & Environmental Systems (SEES) Department, Energy Analysis and Environmental Impacts (EAEI) Division. Dr. Peng's research interests include sustainable energy systems and critical resource circularity. He specializes in developing cross-scale models (i.e., material-to-system, temporal, and spatial analyses) to connect new materials/technologies with end uses, assess their economic and environmental impacts, and provide strategic roadmaps for their deployment. Dr. Peng also holds a Professional Engineer (P.E.) license in the field of Chemical Engineering.