Aleris Holding Company is majority owned by investment funds managed by Oaktree Capital Management.

Crane is president and chief operating officer of Exelon Corporation, an electric companys in the USA, and president, Exelon Generation, an operator of nuclear power plants.

He joined Exelon (then ComEd) in 1998 and was named chief nuclear officer in 2004.

Crane is on the board of directors of the Institute of Nuclear Power Operations and the Foundation for Nuclear Studies.

He is on the executive committee of the Nuclear Energy Institute and is the chairman of the World Nuclear Association.