Unleash the transformative force of the green transition with H2Electro's solid oxide electrolyser stacks, a pivotal component in a complete electrolyser system. These stacks, created by connecting solid oxide electrolysis cells (SOECs) in series, redefine efficiency and sustainability in hydrogen production. Crafted from our ground-breaking fully ceramic single cells, these stacks operate seamlessly at elevated temperatures ranging from 800 to 850°C, resulting in a remarkable 30% increase in efficiency compared to conventional electrolysis technologies. Capitalizing on waste heat generated by industrial processes, such as steel and fertiliser production, our innovative approach enhances the efficiency of steam electrolysis, achieving electrical efficiencies of up to 100%. Moreover, the fully ceramic materials employed in our stacks provide enhanced redox stability and impurity tolerance, eliminating the need for a protective gas atmosphere or extensive gas purification. This, in turn, significantly reduces the Balance of Plant (BOP) costs associated with the electrolyser system. Positioned as a cost-effective and robust solution, H2Electro's SOEC stacks represent the epitome of efficiency, offering electrolyser system manufacturers an unparalleled solution to drive the green transition forward.