Australian researchers at the University of Adelaide have made significant advancements in the production of green hydrogen by utilizing urea, a component found in urine. This breakthrough, detailed in two scientific papers published in international journals, could potentially reduce the cost of renewable hydrogen production by up to 27%. The innovative process developed by the researchers under Professor Yao Zheng requires less energy compared to traditional water-splitting methods, contributing to enhanced cost efficiency and sustainability in green hydrogen production. While the use of urea has proven to be effective in lowering production costs, the researchers encountered an unexpected obstacle due to the high purity of Australia's wastewater. Despite this challenge, the team is determined to further scale up their experiments with the goal of achieving green hydrogen production at a cost ranging from $US1.50 to $US1.95 per kilogram. The research aligns with global targets for cost-effective green hydrogen, with the US Department of Energy setting aims for $US2 per kilogram by 2026 and $US1 per kilogram by 2031. The Australian federal government has also shown support for green hydrogen projects, with initiatives in multiple states and planned tax incentives until 2040 to promote the development of the hydrogen industry in the country. The utilization of urine in green hydrogen production represents a remarkable step towards sustainable and affordable hydrogen fuel for various industrial applications.