About Tammy Klein

Tammy Klein provides market and policy intelligence with unique insight and analysis drawn from her global network in the fuels industry through the consulting services she provides and the membership-based Future Fuels Outlook service. She is an expert on conventional, biofuels and alternative fuels market and policy issues. Tammy serves clients in the auto, oil and associated industries, as well as governments and NGOs and helps them understand current and future fuels trends and issues; or in the case of government and NGOs, the best policies to develop and implement.

She is formerly Senior Vice President for Stratas Advisors/Hart Energy and in that capacity was responsible for overseeing all aspects of its fuels and transport-related research, products, services, staff and consultancy. Prior to that she was the Executive Director of the Global Biofuels Center, a service of Hart Energy she co-created, that tracks, monitors and analyzes biofuels market, policy and technology developments in more than 70 countries. She created, oversaw and was the lead author of the company’s annual outlook and forecast for biofuels supply and demand. Tammy also helped launch Hart’s International Fuel Quality Center (IFQC), a service covering global fuel quality issues, and served as a senior analyst for the Americas region covering market and policy issues for many years.

Tammy continues to serve as an advisor to many companies, governments and NGOs on transportation fuels issues. She has advised the Organization of Petroleum Exporting Countries (OPEC), International Petroleum Industry Environmental Conservation Association (IPIECA), Energy Management Authority (EMA) of Singapore and Natural Resources Defense Council (NRDC) and the International Energy Agency (IEA), among others. Prior to her time at Hart Energy, she was an associate at Venable LLP specializing in environmental and administrative law matters.

Assignment Highlights

  • Board Member, NREL’s Biofuels Technical Review Panel, 2011-2014
  • Board Member, Western Governor’s Association Alternative Transportation Fuels for the Future Advisory Committee, 2007-2008
  • Advisor and Co-Author, Sugarcane-Based Ethanol: Energy for Sustainable Development, BNDES, CGEE, UN-ECLAC, November 2008
  • Steering Committee, Partnership for Cleaner Fuels and Vehicles, 2001-2003

Selected Speeches & Insights:

Selected Consulting Project Portfolio:


  • Member, District of Columbia Bar (2004-present)
  • Associate Member, Virginia State Bar (2003-present)
  • Member, American Society of Testing & Materials (ASTM) (2005-present)



  • Georgetown University Law Center, J.D., 2003
  • University of Florida, B.S., Journalism, 1995