Highly Efficient & Low Cost Photovoltaic-Electrolysis System

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The Highly Efficient & Low Cost Photovoltaic-Electrolysis System project is a promising approach to produce renewable hydrogen (H2) for export from sunlight and water. The main obstacle to utilising PVE to produce H2 is the high cost and modest efficiency.The project aims to lower the cost of renewable hydrogen produced via PVE by improving the energy efficiency of transition metal-based alkaline water electrolysers and the overall solar to hydrogen (STH) conversion efficiency of PVE systems. This approach is anticipated to lead to the development of an integrated PVE system demonstrating an overall solar-to hydrogen (STH) conversion efficiency >30%.How the project worksThe Highly Efficient & Low Cost Photovoltaic-Electrolysis System project is using an innovative approach to develop a low-cost, highly efficient, integrated PVE system to harvest the whole spectrum of sunlight as the sole source of electricity, heat and light, which then will power an alkaline water electrolyser to convert renewable primary energy (solar) to hydrogen. The world’s highest efficiency Concentrator Photo Voltaic (CPV) receivers from Raygen and novel electrocatalyst composites from UNSW will be utilised to achieve this outcome.

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