A Cornell University-led research team has developed a groundbreaking method to produce green hydrogen by utilizing sunlight and seawater. By addressing the inefficiency of traditional photovoltaics, the team created a prototype that efficiently converts solar energy into green hydrogen. The waste heat generated by solar cells is utilized to warm seawater until it evaporates, and the desalinated vapor is then passed through an electrolyzer to split water molecules into hydrogen and oxygen. This innovative approach ensures that all solar energy is fully utilized, with no wastage. The research highlights the potential of solar-powered water electrolysis for scaling up green hydrogen production. However, challenges such as high water consumption impacting costs and conservation needs are noted. Other institutions like the University of Illinois, Chicago, and the Massachusetts Institute of Technology are also making strides in developing alternative methods for green hydrogen production using solar power. These advancements demonstrate a growing trend towards sustainable and innovative solutions in the clean energy sector.