High Performance Green Hydrogen Generation System

In facing major challenges of climate change, hydrogen is a clean-energy solution representing an important aspect of the transition to renewable energies. However, currently majority of hydrogen is produced from fossil fuels (‘brown hydrogen’), whereas green hydrogen is produced from renewable energy, so as the potential to provide clean energy. This article presents a design of solar green hydrogen production system and the simulation of its CPV (concentrated photovoltaic) output. To achieve cost-efficient green hydrogen production, we focus on improving efficiencies in two aspects, i.e., solar energy capture and electricity conversion. Firstly, to enhance the efficiency of focusing the sunlight, we use bi-axial concentrating solar optics combined with high-efficiency multijunction solar cells. Secondly, for the electricity conversion, use direct coupling between PEM (Polymer Electrolyser Membrane) electrolyser and PV system.