John O'Brien

John O'Brien is a Partner with Deloitte Australia and leads its energy transition and decarbonisation practice.He has 30 years' commercial experience in the Australian and global clean energy, clean technology and environment sectors. He works extensively with global clients on translating decarbonisation ambitions into practical financial and strategic actions. John is also Deloitte's Global Lead for decarbonisation in the Mining and Metals sector. John started his career in the oil & gas industry in Scotland and Syria, engineering roles in London and Adelaide before holding corporate development positions in the energy sector. In 2007, John established Australian CleanTech, a boutique advisory firm that led the development of the cleantech sector in Australia for ten years. During this time he represented South Australia at global climate change conferences through his role on the Premier's Climate Change Council. John is widely published with his previous book, 'Visions 2100', launched at the Paris COP21 Climate Conference in 2015. He has engineering degrees from Oxford and Trinity College Dublin and an MBA from Adelaide. John is the youngest of seven siblings and grew up on the Isle of Wight. He now lives in Adelaide, Australia with his wife, Kate, and has two annoyingly tall sons.