EMI is now part of TRC, a leading national provider of engineering and consulting solutions supporting a clean energy future. Learn more.

Hannah Carmalt Justus

Senior Consultant


Hannah focuses on simplifying energy efficiency decisions to integrate sustainability into daily life. She’s an expert in journey and process mapping and is an accredited user-experience tester. With experience in a wide-range of projects, from portfolio-level evaluations to assessing midstream and trade-ally led programs, Hannah is creative, yet concise, and helps clients build innovative strategic plans that are customer-centric.


countries visited


miles biked to work each day


forms of dance mastered

  • How did you get into the clean energy field?

    As I completed my Master's in urban planning, I started thinking about how we can make it easy for people to live sustainably. Answering this question has become my life’s work and led me to EMI Consulting.

  • When do you have the most fun at work?

    I love mapping journeys (whether they are related to purchasing decisions or energy-using behaviors) and identifying opportunities for improving customer experience.

  • Where is your favorite spot in the world?

    Tanzania. I went there for my honeymoon and fell in love with the expanse of the Serengeti, the food, and the fantastic melting pot of cultures that have formed the Zanzibari civilization.


  • Meade, K., Lyon, E., Jawad, M., Jimenez, R. (2017): “Shapeshifting evaluation: Rapid, flexible, and actionable evaluation within a context of continuous improvement.” Proceedings of the 2017 International Energy Program Energy Conference. Baltimore, MD.
  • Whitsett, D.D., Steiner, E., Duffy, K. (2013). “Persistence of energy efficiency behaviors over time: Evidence from a community-based program.” Proceedings of the 2013 Behavior, Energy, and Climate Change Conference. Sacramento, CA.
  • Steiner, E.B., Whitsett, D.D., Crohn, K., Malinick, T. (2013). “Panel studies – The perfect marriage of formative and summative evaluations.” Proceedings of the 2013 International Energy Program Evaluation Conference. Chicago, IL.
  • (2010, August). “Energy efficiency DSM, act two: Enter local governments.” American Council for an Energy-Efficient Economy Summer Study on Energy Efficiency in Buildings. Asilomar, CA.
  • Schulte, D., Brateng, E. (2008, August). “Risky business: Development and implementation of a risk assessment strategy to guide program evaluation.” American Council for an Energy-Efficient Economy Summer Study on Energy Efficiency in Buildings. Asilomar, CA.
  • Wener, R. (2006). “Environmental psychology and sustainability in high-rise structures.” Technology in Society, George Bugliarello and A. George Schillinger (eds.), Pergamon.
  • (1998). “Waste management and student participation in waste minimization.” University Life: Students Researching the University of Wollongong, Mike Donaldson and Lenore Lyon (eds.), Social Sciences Press.