Alexander A. Karsner was Assistant Secretary for Energy Efficiency and Renewable Energy from 2005 to 2008. He is a visiting fellow at the Hoover Institution and a member of the Task Force on Energy Policy. He distinguished himself as a principal architect and contributor to international climate change deliberations toward achieving a post-2012 global energy framework and as America's top regulator for energy efficiency. He brings twenty years of experience in global energy development and project financing across a wide array of conventional and renewable sources. He served as CEO of the power development and consulting firm Enercorp, and both Director and Senior Development Manager for Wartsila Diesel. Mr. Karsner is currently on the Board of Directors of Argonne National Laboratory, Conservation International and Applied Materials. He is a Distinguished Fellow at the Council on Competitiveness and a leader of the Energy Future Coalition.