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What is white hydrogen? Scientists say the clean-energy gas could save the world.
(www.businessinsider.com)
this post was submitted on 31 Oct 2023
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That does sound interesting, but its no hydrogen as a fuel source (like the article), its used in your description as a single link in a chain. So they're creating hydrogen from a process (likely electrolysis) using some other energy source, then nearly immediately converting that hydrogen into ammonia for better storage and transport. That would be a good use of hydrogen, as an intermediate step and not a beginning and end step.
Yeah that's exactly it. Create hydrogen and convert it into ammonia in places with ready access to renewables, then send it and store it via gas infrastructure to where it's needed, and burn it to create power. It's less efficient than straight h2, but the benefits of being able to transport it and store it make up for that. Japan's grid is crazy fractured and they went heavy into gas, so for them it's kind of a no brainer to invest in that tech.
If you Google around there lots of more detailed reporting on the whole process and plan. I can try and dig up the very insightful comment I read on tildes which had lots of citations too if you're interested.