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John O'Brien

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Partner, Deloitte

John O’Brien is a renewable energies partner within Deloittte's firm’s energy, resources & industrials group.  A renewable energy and clean technology specialist, John has over 20 years’ experience in the Australian energy sector advising governments in Australia, Korea and China, industrial leaders in the water, oil and gas and energy sectors on clean energy and technology innovators bringing the next generation of clean technology solutions to market.


Before basing himself in Adelaide, John’s career included oil and gas and engineering roles in Scotland, London and Syria. In Australia he joined what would become Origin Energy where he worked in national strategic development, M&A and corporate investment positions.


In 2007, John founded and established Australian CleanTech, a strategic and corporate advisory firm with a primary focus on energy and environmental sector technologies. He also founded the Australian Technologies Competition in 2011, providing a platform to mentor and promote Australia's most innovative tech companies.

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