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John O'Brien

Partner | Sustainability & Climate

John O’Brien joined Deloitte Australia in 2018 as a Financial Advisory partner. With more than 20 years of experience in the Australian and Asian clean energy and clean technology sectors, he provides strategic guidance to government, private sector operators, and large energy consumers and investors on issues around decarbonization, energy transition, and environmental technologies. His key expertise includes technology assessment, project development, project financing, risk and opportunity assessment, commercial and financial analysis, policy advice, and strategic growth strategies. In 2007, O’Brien established Australian CleanTech, a corporate advisory firm focused on environmental technologies, which he ran until joining Deloitte in 2018. He has also published two books on the opportunities emerging from the transition to a low-carbon economy. O’Brien has engineering degrees from Oxford University and Trinity College, Dublin, and holds an MBA from Adelaide University.