The article highlights the importance of hydrogen as a renewable energy resource, especially in the context of energy transition and sustainability. It emphasizes the potential of hydrogen to revolutionize various sectors including power generation, steel manufacturing, chemical industries, and transportation due to its high energy content. The focus is on innovative methods like metal–water reactions, particularly involving aluminum, to generate clean hydrogen efficiently. The research delves into the optimization of parameters affecting hydrogen production, such as the type and concentration of activators, electrolyte volume, and the quantity of aluminum feedstock. The study reveals that sodium hydroxide exhibits superior performance compared to potassium hydroxide in promoting metal–water reactions, consequently enhancing hydrogen yields. By leveraging these activator-assisted reactions, not only clean hydrogen is produced but also other valuable byproducts like hydroxides. The utilization of industrial aluminum scrap as a feedstock further underlines the sustainable and cost-effective nature of this approach. Overall, the article underscores the ongoing advancements in hydrogen production technologies and the significance of exploring novel methods to improve efficiency and competitiveness with conventional fossil fuels. By shedding light on the potential of aluminum–water reactions for clean hydrogen production, the research paves the way for a greener and more sustainable energy future.