Dr. Sarah Josephine Smith is a Research Scientist in the Sustainable Energy Systems group. She specializes in energy use modeling across end-use, customer, and industry-wide scales, economic modeling of energy technologies and systems, and system optimization. Her current research includes organic waste management and nutrient recovery cost and emissions modeling, end-use load shape modeling for demand response potential estimation, and battery cost, manufacturing, and supply chain analyses. She is also an expert in data center industry energy use, anaerobic digestion, and technology learning and innovation. Dr. Smith received her Ph.D. in Civil Engineering from U.C. Berkeley, with a focus on system-wide economic and environmental optimization of organic waste-to-energy infrastructure.