Governance and Nominating Committee. Mr. Coben has been a director of NRG since December 2003. He is currently Chairman and Chief Executive Officer of Tremisis Energy Acquisition Corporation II, a publicly held company since July 2007. He was Chairman and Chief Executive Officer of Tremisis Energy Corporation LLC from May 2006 through June 2007 and of Tremisis Energy Acquisition Corporation from February 2004 to May 2006. From January 2001 to January 2004, he was a Senior Principal of Sunrise Capital Partners L.P., a private equity firm. From 1997 to January 2001, Mr. Coben was an independent consultant. From 1994 to 1996, Mr. Coben was Chief Executive Officer of Bolivian Power Company.