Carl Greenfield

Director, Energy and Environment

Carl Greenfield supports clients on a variety of issues covering the electricity and clean energy sectors. Mr. Greenfield’s areas of expertise include wholesale/retail electricity market policies, renewable energy, distributed generation trends, and innovation initiatives in the electric utility sector. His portfolio also includes a substantial focus on environmental and climate change policy affecting the industrial, transportation, and power sectors.

In 2019, Mr. Greenfield was selected as a fellow by the Clean Energy Leadership Institute (CELI). The CELI fellowship is a 21-week program for working professionals taught by influential thought leaders and expert practitioners in the field. Fellows are challenged to think critically about current energy policy and market structures, to identify existing barriers to clean energy deployment and innovation, and to formulate and propose new solutions.

Prior to joining ITTA, Mr. Greenfield interned with the Energy and National Security Program at the Center for Strategic and International Studies (CSIS). He holds a Master of Arts in International Relations and Economics from the Johns Hopkins School of Advanced International Studies (SAIS) under the Energy, Resources, and Environment Program. He received his Bachelor of Arts in Environmental Studies and Global Studies from the University of California, Santa Barbara.


Greenfield, Carl, “Using Trump's trade war to address climate change”, The Hill, June 15, 2019 (

Greenfield, Carl, “Naughty Children – Not Electric Utilities – May Drive U.S. Coal Demand This Winter”, Newsletter of the US Association for Energy Economics, National Capital Area Chapter (NCAC), January 2019. (

Carl Greenfield’s interview from USAEE/NCAC, January 2019.

ITTA Energy Analyst Carl Greenfield participated in the Hellenic Association for Energy Economics (HAEE) Annual Energy Conference in Athens, Greece, May 18-20, 2017. (view PDF)

Rokuhei Fukui, Carl Greenfield, Katie Pogue, and Bob van der Zwaan. “Experience curve for natural gas production by hydraulic fracturing.” Energy Policy. 105 (2017) 263–268. (view PDF)