WASHINGTON - MARCH 05:  Sen. Mark Udall (D-CO) participates during a Senate Energy and Natural Resources Committee hearing on Capitol Hill on March 5, 2009 in Washington, DC.  The committee is hearing testimony on the future of energy research and development with testimony from Secretary of Energy Steven Chu. The Department of Energy will reportedly release guidelines this month for better efficiency standards of several types of household machines and electrical devices.  (Photo by Mark Wilson/Getty Images)