John Callaghan

John Callaghan is an accomplished professional with extensive experience in bioenergy management. Currently serving as the Bio Energy Plant Manager at Diageo since October 2018, John also holds a position as Bio Energy Plant Manager at Veolia UK, a role maintained since March 2010. Prior experience includes a tenure as Plant Support Manager at Dundee Energy Recycling Limited from October 2002 to March 2010. John Callaghan earned a BSc (Hons) in Technology from The Open University between 1994 and 2000.