US Energy Utilities have been buying up Green Companies at a rapid clip these days taking advantage of the fall in valuations of Green Companies recently.Exelon bought Deere’s Wind Assets while NRG Energy bought Green Mountain Energy.Constellation Energy already has around 10% of its 9 GW of Electricity Capacity being sourced from Green Sources.Its Smart Grid buy is synergistic to is Energy Trading Core Business.It will help in expanding its customer base and sourcing new opportunities.For CPower Investors which are mainly PE players,it would be a good exit as competition in the Demand Response is increasing .