Forbes, Nov. 14, 2016, by Liz Delaney.
http://www.forbes.com/sites/edfenergyexchange/2016/11/14/companies-are-getting-strategic-about-their-energy-use-5-key-trends/#62c96c1544b0

"Energy management has evolved since we dispatched our first EDF Climate Corps fellows back in 2008 to jumpstart corporate energy efficiency programs in America. ....After careful analysis of more than 3,200 energy project recommendations, we identified five key trends."