Andrew W. Bartling is a process engineer in the Economics, Sustainability, and Market Analysis team at the National Renewable Energy Laboratory (NREL) where he focuses on process design, simulation, and techno-economic analysis (TEA) of biorefineries producing bio- fuels and products from lignocellulosic biomass feedstocks. Andrew’s current research interests include TEA of biofuels produced via biochemical and thermochemical conversion routes, feedstock variability impacts on biorefinery economics, and strategies for reducing production costs of fuels and chemicals produced from lignin. Before joining NREL, Andrew was a chemist and laboratory manager at Fitbit. He holds degrees in both chemical engineering and in chemistry from the University of Wisconsin – Madison.