LAS VEGAS - AUGUST 11: President and CEO of the Center for American Progress Action Fund John Podesta (R) and Federal Energy Regulatory Commission Chairman Jon Wellinghoff tour a LEED-certified building on the UNLV campus during the National Clean Energy Summit 2.0 August 11, 2009 in Las Vegas, Nevada. Political and economic leaders are attending a two-day summit to discuss a domestic policy agenda to advance alternative energy for the country's future.