David is a Brisbane-based energy-technologies specialist with a PhD in chemical and materials engineering, whose work ranges from technology scale-up and commercialisation in the hydrogen and low-carbon fuels sector to energy efficiency, emissions mitigation and benchmarking for industrial systems. He is currently Project Manager and Team Leader in the CSIRO Energy Technologies research program, based at the Queensland Centre for Advanced Technologies (QCAT) site in Pullenvale. David was a lead author for the IPCC’s 2019 Methodology Report for emissions accounting for industrial aluminium and rare-earth metal smelting. He has led multi-party implementation projects that cut fluorinated greenhouse gases by 50% in trials at one major aluminium smelter and delivered energy savings of 100–150 kWh per tonne of metal two other smelters. He has over 30 publications, has advised industry and governmental bodies internationally, and has received awards from The Minerals, Metals & Materials Society (TMS) and The International Committee for Study of Bauxite, Alumina & Aluminium (ICSOBA). He also trains global smelting professionals through long-running technical courses.