News has been pouring out of Japan regarding novel methods for green hydrogen production and transportation in the past few weeks with claims pointing at increased efficiencies. We would advise taking such claims with a pinch of salt as cost will most likely represent a huge roadblock for the processes in question. On the production side, the Japan Atomic Energy Agency (JAEA) is aiming to leverage waste heat from a High Temperature Gas Cooled Reactor (HTGR), which operates at 870°C. The HTGR employs a thermochemical process called the sulfur-iodine cycle to extract hydrogen and oxygen from water using waste heat. Initially, sulfur dioxide and iodine are added to water, resulting in a solution containing sulfuric acid and hydrogen iodide. Subsequently,…