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Joan Effinger

Senior Engineer


Joan is our master bridge-builder, helping to close the gap between business goals and engineering capabilities. With real world experience in fuel cells, energy efficiency program implementation, renewable technologies, and energy efficiency evaluation, Joan is a master at identifying the best solution to solve a client’s diverse needs. Joan’s passion for the energy industry has only grown as she’s learned how access to clean energy will make all the difference in preserving the world for her children and future generations.


countries visited


years as a competitive gymnast


art fairs selling needlepoint crafts

  • How did you get into the clean energy field?

    By accident. I went into a teacher's office to get a test back in college, and after a long conversation with him, was offered a job at the National Fuel Cell Research Center. Being a poor college student, I gladly accepted it without even knowing what fuel cells were.

  • When do you have the most fun at work?

    I really enjoy figuring out how to make an idea a reality—thinking through the needed steps and then partnering with my colleagues and clients to execute those steps, always evaluating intermediate results and adjusting the plan to achieve the desired results. It's like applied problem solving. I also really enjoy learning and trying new things. Working with smart people with backgrounds that are different than mine keep learning going!

  • How do you spend your time on the weekends?

    Playing with my two sons, sailing, hiking, knitting, spending time with my friends


  • Crowe, E., Reed, A., Kramer, H., Effinger, J. (2015, May). “Baseline energy modeling approach for residential M&V applications.” Prepared for the Northwest Energy Efficiency Alliance (NEEA).
  • Kramer, H., Effinger, J., Crowe, E. (2013, August). “Energy management and information system software technology assessment: Considerations for evaluating baselining and savings estimation functionality.” ET Project Number: ET12PGE1311.
  • Kramer, H., Russell, J., Crowe, E., Effinger, J. (2013, June). “Inventory of commercial energy management and information systems for M&V applications.” Prepared for the Northwest Energy Efficiency Alliance (NEEA).
  • Harris, D., Higgins, C., Crowe, E., Effinger, J., Webster, L. (2013, March). “Methodology for reporting commercial office plug load energy use.” Prepared for the California Energy Commission.
  • Effinger, J., Effinger, M., Friedman, H. (2011, October). “Case studies in using interval data energy models for savings verification: Lessons from the grocery sector.” ICEBO 2011. New York, NY.
  • Effinger, J., Effinger, M., Friedman, H. (2012, August). “Overcoming barriers to whole building M&V in commercial buildings.” ACEEE Summer Study 2012. Pacific Grove, CA.
  • Effinger, J., Friedman, H. (2010). “What saves energy in existing buildings: The right measures.” ASHRAE Journal 52.10 (2010): 84-89.
  • Hart, R., Effinger, J. (2010, November). “Premium ventilation." Poster session presented at the Emerging Technology Coordinating Council Summit. Sacramento, CA.
  • Hart, R., Effinger, J. (2010, August). “Expected value prescriptive savings method.” Poster session presented at ACEEE Summer Study. Pacific Grove, CA.
  • Morrison, J. (2006). “Small scale local production of hydrogen for use in a proton exchange membrane fuel cell.” Master’s thesis for the University of California. Irvine, CA.