2010-2012. Head, Centre of Interdisciplinary Studies in Energy, University of Campinas, Brazil
2009-2010. Lead Author. IPCC Special Report on Renewable Energy Sources. Intergovernamental Panel on Climate Change, UNEP.
2008-20010 Lead Author. Energy Efficiency in the Industrial sector. Global Energy Assessment. IIASA, UNDP (www.worldenergyassessment.org).
2005-2009 Dean of Graduate Studies in Energy Planning, Mechanical Engineering Faculty, State University of Campinas UNICAMP.
Since 2004 Executive-Director International Energy Initiative. Since 2001: Director for Latin America of the International Energy Initiative (IEI) an international NGO with offices in Latin America (Campinas),