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Dr. Janet L. Reyna joined NREL in 2018. Previously, she was an ORISE Science and Technology Policy Fellow at the U.S. Department of Energy’s Building Technologies Office supporting the Building Energy Modeling program. During her Ph.D., she received a National Science Foundation Graduate Research Fellowship and also spent a summer as a guest researcher at the Pontifica Católica Universidad del Perú in Lima. Dr. Reyna’s research focuses on environmental impacts of urban systems, and she aims to provide information for policy decision-making with her work.  She has expertise in life cycle assessment, energy forecasting, building energy modeling, vehicle emissions simulation, and spatial analysis. 

Research Interests

Urban-scale energy modeling

Climate change, future weather, and energy use

Modeling building and electric grid interactions

Building stock dynamics


Ph.D. Civil, Environmental, and Sustainable Engineering, Arizona State University

M.S.E. Civil, Environmental, and Sustainable Engineering, Arizona State University

B.S. Mechanical Engineering, Purdue University

Featured Work

Energy efficiency to reduce residential electricity and natural gas use under climate change, Nature Communications (2017)

Defining geographical boundaries with social and technical variables to improve urban energy assessments, Energy (2016)

Improving the Accuracy of Vehicle Emission Profiles for Urban Transportation Greenhouse Gas and Air Pollution Inventories, Environmental Science & Technology (2015)

The Growth of Urban Building Stock: Unintended lock-in and embedded environmental effects, Journal of Industrial Ecology (2015)