Michael S Liebelson

From 2008 to December 2009, Mr. Liebelson was employed as Chief Development Officer, Low-Carbon Technologies for NRG Energy, Inc. From 2006 to 2008, he was a consultant to NRG Energy, Inc. and LS Power Corporation. From 2002 to 2005, Mr. Liebelson was CEO of Zolaris Biosciences LLC, a company formed to commercialize peptide stabilization technology. From 1990 to 1998, Mr. Liebelson co-founded, co-managed and held a 50% ownership interest in LS Power Corporation, and since 1998 Mr. Liebelson has been a limited partner of several entities affiliated with the LS Power Group. Prior to 1990, Mr. Liebelson held various management positions with Commercial Union Energy Corporation, Ahlstrom-Pyropower and Air Products and Chemicals. He started his professional career as a chemical engineer at an Exxon refinery. Mr. Liebelson departed from the Company effective March 7, 2012.