Smoltek Nanotech Holding AB has developed a breakthrough porous transport electrode (PTE) for PEM electrolyzers, significantly reducing the amount of iridium catalysts required. The PTE has successfully lowered the catalyst loading to 0.1 mg/cm2, making large-scale production of PEM electrolyzers economically viable. Through a 250-hour durability test at 2 A/cm2, Smoltek Hydrogen demonstrated the PTE's efficiency and durability, maintaining the nanostructure of the electrolyzer cell without degradation. This innovation marks a 95% reduction in iridium usage compared to conventional technology, addressing a major challenge faced by the hydrogen industry. Further research aims to optimize Smoltek's nanostructures to reach even lower iridium levels, potentially down to 0.1 mg/cm2. The successful reliability tests have garnered significant interest within the industry, prompting inquiries from prospective customers eager to test the technology. This advancement showcases the potential of nanotechnology in revolutionizing the production of green hydrogen from renewable energy sources like solar and wind power.