Lazer Zentrum Hannover (LZH), as part of the AM2H2 project, is working on advancing the production of green hydrogen through innovative additive manufacturing techniques. The project involves developing a multi-material energy converter to enhance the efficiency of green hydrogen production. By combining assemblies for low and high temperatures, the consortium aims to create more compact and lighter components for the mobility sector and decentralized energy supply. The focus is on improving the combustion process of hydrogen by utilizing multimaterial components. The project includes the collaboration of LZH, Hannover University of Applied Sciences and Arts (HsH), Leibniz University Hannover (LUH), and the Clausthal Center for Materials Technology (CZM). The partners are working on additively manufacturing an integrated energy converter and a hydrogen reformer to convert methanol or ammonia into hydrogen. One of the key challenges is designing components that can withstand high reaction temperatures and pressure reductions. To address this, the partners are developing a process head capable of processing both powder and wire base materials to create functional-graded materials. The project also involves material development, testing, and characterization by CZM, laser process development by LZH, process head manufacturing by HsH, and simulations and system design by LUH. The initiative is supported by funding from the European Social Fund Plus / European Regional Development Fund, showcasing a collaborative effort to advance sustainable energy conversion technologies.