The Senate Energy Committee chair proposed a market-based system to drive down pollution and support a digitalized grid March 1. The Clean Energy Standard Act of 2012, by Sen. Jeff Bingaman (D-NM), would issue credits for “clean” generators--including nuclear plant owners. The number of credits allowed would be based on carbon emissions from power plants. Cogeneration (combined heat-and-power) would be considered “clean” under this legislation. Coal would not. Bingaman, who announced he’s retiring this year when his seat is up for a vote, is following on the failed Waxman-Markey (or 2009 Clean Energy Act) legislation. He aims to double the amount of clean energy in the nation by 2035.