Ammonia, traditionally known for fertilizer production, is now gaining recognition as a key player in the Energy Transition due to its potential as a source of hydrogen and a greener substitute for fossil fuels. The Fraunhofer Institute for Microengineering and Microsystems IMM in Mainz is leading the way in developing efficient and decentralized technology for cracking ammonia. This innovation aims to address challenges in the Energy Transition, such as transporting green electricity to areas with limited renewable resources. By combining green hydrogen and nitrogen to produce ammonia, energy can be stored and transported more effectively with lower losses in the supply chain. Ammonia's unique properties, like remaining liquid at atmospheric pressure and having a higher energy density than liquid hydrogen, make it a promising candidate for energy storage. The institute's groundbreaking AMMONPAKTOR project focuses on developing a compact and highly efficient ammonia cracker that utilizes exhaust gas streams for heat generation, resulting in significant energy savings and emissions reduction. The technology, already producing hydrogen at a small scale, has the potential to revolutionize local hydrogen supply, particularly for SMEs lacking access to hydrogen pipelines. Future plans include scaling up production capacities to meet the increasing demand for sustainable energy solutions, contributing to the ongoing efforts in building a more resilient and eco-friendly energy system.