Constellation Energy headquartered in Baltimore Maryland USA generates trades supplies and distributes energy. The company operates over 35 power plants in 11 states under its operating company Constellation Commodities Group and-or Constellation Generation Group. Constellation Energy is a Fortune 500 company and is one of the top electricity producers in the United States. In April 2011 Exelon announced an intention to purchase Constellation Energy.
Key people are Mayo A. Shattuck III, CEO, Chairman and & President.