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Janine Keith

Researcher IV-Software Engineering


Janine Freeman Keith is a member of the Distributed Systems and Storage Group in the Strategic Energy Analysis Center. She is a Senior Engineer at the National Renewable Energy Laboratory. She has been at NREL since 2013, working primarily on engineering and software development for the System Advisor Model (SAM), where she now serves as the principal investigator for the project. Her expertise lies in photovoltaic and wind power modeling, as well as experimental design and testing of vertical axis wind turbines. She has additional experience in software development, wind and solar resource assessment, and mechanical engineering design. 


M.S., Mechanical Engineering, Rensselaer Polytechnic Institute

B.S., Mechanical Engineering, Rensselaer Polytechnic Institute 

Professional Experience

Solar Services Engineer, AWS Truepower (2011–2012)

Featured Work

The 2020 Photovoltaic Technologies Roadmap, Journal of Physics D: Applied Physics (2020)

Using Measured Plane-of-Array Data Directly in Photovoltaic Modeling: Methodology and Validation. Golden, CO: National Renewable Energy Laboratory, NREL Technical Report (2016)

Validation of Multiple Tools for Flat Plate Photovoltaic Modeling Against Measured Data, NREL Technical Report (2014)

Solar Input Data for Photovoltaic Performance Modeling, 38th IEEE Photovoltaic Specialists Conference (2012) 

Testing of a Combined Savonius-Darrieus Wind Turbine, Master’s Thesis for Rensselaer Polytechnic Institute (2010)

View all NREL publications for Janine Freeman.