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Techno-economic Analysis of Hydrogen Electrolysis from Off-Grid Stand-Alone Photovoltaics Incorporating Uncertainty Analysis


Solar-driven electrolysis of water to generate hydrogen is emerging as a viable strategy to decarbonize the global energy economy. However, this direction is more expensive than traditional fossil fuel generation of hydrogen, and effective pathways to lower this cost need to be identified. Here, we report a Monte Carlo approach to explore a wide range of input assumptions to identify key cost drivers, targets, and localized conditions necessary for competitive stand-alone dedicated PV powered hydrogen electrolysis. We determine the levelized cost of hydrogen (LCOH), considering historical weather data for specific locations to model our PV system, and optimize its size compared to the electrolyzer. This analysis and its methods show the potential for green hydrogen production using off-grid PV, shows the merits of remote systems in areas of high solar resource, and provides cost and performance targets for electrolyzer technologies.

Funding source: This work has been supported by the Australian Government through the Australian Renewable Energy Agency (ARENA), the Australian Centre for Advanced Photovol- taics (ACAP), and the Australian Research Council (ARC) through the ARC Research Hub on Integrated Energy Storage Solutions. R.D. and R.A. acknowledge support from the University of New South Wales (UNSW) Digital Grid Futures Institute, UNSW Sydney, under a cross-disciplinary fund scheme
Related subjects: Production & Supply Chain
Countries: Australia

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