Mr Luterman was executive vice president and CFO of KeySpan, a gas distribution and integrated energy company in the US. Mr Buzby, who is a founding investor and has served on SunEdison’s board since 2003, has been involved in investing in and operating businesses since 1988.

Thomas Rainwater, CEO of SunEdison, said: David and Gerald bring world-class energy experience to SunEdison’s board. I look forward to working closely with David in his new role as chairman and with Gerald as an outside director.