In Bremerhaven, the most important fields of application for "green gas" are being tested. With around 20 million euros from the state of Bremen and the European Union, the development of a value chain from production and storage to practical testing is underway. The focus on a high-growth future market is intended to open up new opportunities for the region and strengthen the region as a hub for business and science. The new activities tie in with the proven and tested scientific competence and the existing infrastructure from the research of wind energy and process engineering. The project partners Bremerhaven University of Applied Sciences, Fraunhofer IWES and ttz Bremerhaven are investigating the potential of green hydrogen in four selected applications, paving the way for economical, CO2-reduced industrial processes as well as flexible and resilient electricity and energy systems. The developments will include benchmarking for hydrogen logistics applications as well as various laboratory-scale facilities, including the production of green synthetic natural gas and the construction of a hydrogen oven and a hydrogen microgrids.