Clean Power Hydrogen plc (CPH2) has announced the successful publication of efficiency gains in wastewater treatment at the Northern Ireland Water project site in Belfast. The project incorporates CPH2's Membrane-Free Electrolyser (MFE) technology, which has facilitated remarkable improvements in the treatment process. By utilizing high purity oxygen produced through green hydrogen electrolysis, the project has achieved a 15% reduction in aeration time, a 31% increase in ammonia removal, and a 13% decrease in energy consumption, alongside other efficiency gains. These advancements not only enhance capacity and reduce sludge disposal but also pave the way for cost reduction for NI Water. The generation of fuel cell-grade hydrogen as a byproduct further emphasizes the environmental benefits of the project. The collaborative efforts of CPH2, Lagan MEICA, and NI Water showcase the practical application of green hydrogen technology in real-world scenarios, with the potential for global replication. The project not only signifies a step towards cost-effective and sustainable wastewater treatment but also aligns with broader environmental goals by curbing carbon emissions in industry and transport sectors.