A green hydrogen project in Germany has seen the commissioning of a 25km pipeline connecting a 30MW plant to the TotalEnergies refinery in Leuna. The pipeline, part of the Bad Lauchstädt Energy Park near Leipzig, has been repurposed from natural gas to hydrogen transportation, aiming to deliver 2,700 tonnes of green hydrogen annually once the plant becomes operational by the end of 2025. The hydrogen production will utilize Sunfire alkaline electrolysers powered by an on-site wind farm, showcasing a sustainable energy generation process. The venture, undertaken by a consortium including Uniper, Terrawatt, Ontras, and VNG, reached a significant €210m final investment decision in 2023, emphasizing a substantial commitment to renewable energy infrastructure. The project, managed by Ontras, involved disconnecting the pipeline from the natural gas grid, reinforcing it for hydrogen transport, and conducting initial hydrogen fills for testing purposes. This development will enable TotalEnergies to replace grey hydrogen in its refinery operations, promoting cleaner and more sustainable processes. Additionally, the initiative signifies a crucial advancement in Germany's hydrogen network expansion, with Ontras leading a 600km segment of the 9,000km national core network. The project highlights the importance of repurposing existing infrastructure for green energy solutions and sets a positive precedent for future renewable energy projects in the region.