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Energy and Environment Directorate

Ellen Franconi

Ellen Franconi

(509) 372-4831


Ellen Franconi joined PNNL in 2018, she is a Senior Energy Research Engineer supporting the Building Energy Codes Program. Over her 30-year career in building energy efficiency, Ellen has worked as a researcher and consultant - supporting 2 for-profit businesses, 1 non-profit organization, and 3 DOE research laboratories. Much of her technical work involves individual and sector-level building performance analyses, whole building simulation modeling, and measurement and verification of energy savings. She works collaboratively with industry partners to promote advancement of methods and deployment of leading-edge applications. Currently, Ellen investigates the role of codes in grid-interactive efficiency buildings.

Research Interests

  • Grid-interactive efficient buildings
  • Buildings as a distributed energy resource
  • IoT building efficiency and demand response technologies
  • Near-real time measurement and verification of savings

Education and Credentials

  • Ph.D. Building Systems Engineering, University of Colorado, Boulder
  • M.S. Building Systems Engineering, University of Colorado, Boulder
  • B.S. Chemical Engineering, University of New Hampshire
  • Certified Building Energy Modeling Professional, American Society of Heating, Refrigeration, and Air-Conditioning Engineers

PNNL Publications


  • Lei X., E.M. Franconi, and Y. Ye. 2022. "Optimizing Price-Informed Operation of a Battery Storage System in an Office Building." In Proceedings of Building Simulation 2021: 17th Conference of IBPSA, September 1-3, 2021, Bruges, Belgium, edited by D. Saelens, et al, 17, 548 - 555. PNNL-SA-161477. doi:10.26868/25222708.2021.30835



  • Franconi E.M., J. Lerond, C. Chandrasekharan Nambiar, D. Kim, M.I. Rosenberg, and J. Williams. 2020. "Opening the Door to Grid-Interactive Efficient Buildings with Energy Codes." In ACEEE 2020 Summer Study on Energy Efficiency in Buildings, August 17-21, 2020, Virtual, Online, 10-117 - 10-130. Washington Dc:American Council for an Energy-Efficient Economy. PNNL-SA-151838.

Energy and Environment

Core Research Areas