NRG expands with new renewables acquisition By: Houston Business Journal via Business Journals March 27, 2014 at 15:59 PM EDT NRG Energy Inc. (NYSE: NRG) is continuing to expand its grasp on the household energy market by acquiring one of the top rooftop solar installation companies... Read More >> Related Stocks: NRG Energy Waste Management iPath Dow Jones-Goldman Sachs Crude Oil Fund