The Japan Atomic Energy Agency is planning to construct a groundbreaking hydrogen production facility adjacent to the High Temperature Engineering Test Reactor (HTTR) in Oarai, Ibaraki Prefecture. This innovative facility will utilize a gas reactor to produce hydrogen using the heat it generates, potentially becoming the world's first of its kind. High temperature gas reactors, with the capability to reach temperatures exceeding 800°C, offer a unique advantage for efficient hydrogen production, which is essential for decarbonization and various industries like fuel cell vehicles, steelmaking, and chemicals. The project timeline includes seeking approval in fiscal 2025, commencing construction by fiscal 2026, and commencing operations by fiscal 2028. Additionally, the agency has ambitious plans for a demonstration reactor towards commercial operation in the late 2030s. The Nuclear Regulation Authority will oversee the review process, focusing on safety aspects to prevent any potential impact on the nuclear reactor from the hydrogen facility. Nariaki Sakaba, leading the high temperature gas reactor project, expressed optimism about achieving hydrogen production success by 2030 and establishing this technology as a global leader. This initiative highlights Japan's commitment to advancing sustainable energy solutions and technological innovation for a greener future.