A couple of months ago, Oscar-winning envirohero (and former VPOTUS) Al Gore was subject to a little good natured ribbing about how much energy his house uses in comparison to the homes of other Americans. Estimates vary, but it uses somewhere between 20x and 12x as much. Gore responded that his family buys carbon credits to offset their greenhouse gas emissions. Nevertheless, the criticism must have stung because Gore is giving his home at Belle Meade a green makeover. He is installing 33 solar panels, a new furnance and radiant floor heat, among other energy saving features.
By the way, Snopes.com has an amusing comparision between Gore's home energy use and that of a certain rival. Check it out here.