The Neo-PEC joint research project undertaken by Fraunhofer specialists has yielded a significant breakthrough in solar-powered hydrogen generation. The project focused on developing a tandem PEC module capable of efficiently producing green hydrogen using solar energy, thereby offering a sustainable solution to replace fossil fuels and reduce carbon emissions. By directly splitting water through a photoelectrochemical cell, this innovative approach eliminates the need for large and complex electrolyzers, making the process more cost-effective and environmentally friendly. The project's success was attributed to the collaborative efforts of researchers from multiple Fraunhofer institutes, each contributing their expertise in materials research, coating technology, and reactor design to optimize the hydrogen generation process. The resulting reactor, with an active surface area of half a square meter, can produce over 30 kilograms of hydrogen per year, showcasing its potential for practical applications such as powering hydrogen cars. The modular nature of the solution allows for scalability and easy integration into existing systems, making it a promising advancement in the field of green technology and renewable energy. Overall, the project exemplifies the positive impact of innovative research and cross-institution collaboration in driving sustainable solutions for a greener future.