- 2008 Member, Advisory Committee, DOE's Energy Efficiency and Renewable Energy Industrial Technologies Program.
- 2008 Member, National Academies' Committee on America's Climate Choices.
- 2007 Member, National Academies' Panel on America's Energy Choices: Energy Efficiency.
- 2006 Member, National Academies' Board of Energy and Environmental Systems.
- 2004 Member, National Academies' Committee on Alternatives to the Indian Point Nuclear Plant.
- 1996 Member, Board of Scientific Counselors, EPA Office of Research and Development.