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A comment on Solar-driven water splitting at 13.8% solar-to-hydrogen efficiency. Parent comment

Re:Solar-driven water splitting at 13.8% solar-to-hydrogen e... by toomuchtodo on Thursday November 18, 2021 @03:18PM (#29269957)
The closer you can get to both steel mills and pipelines, the better. Steel mills can use the hydrogen to replace metallurgical/coking coal, and the pipeline can accept ammonia for transport. Hydrogen is very hard on pipeline infra, unless mixed at low concentrations with a carrier gas.
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Re:Solar-driven water splitting at 13.8% solar-to-hydrogen e... by ncmncm on Friday November 19, 2021 @04:54AM (#29275511)
A steel mill will make its own hydrogen on demand from wired-in power off the continental grid. Likewise, international airports for LH2 aircraft.

They will bank hydrogen synthesized when grid prices are lowest, in mid-day, when immediate power need is vastly outstripped by solar generating capacity.

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Re:Solar-driven water splitting at 13.8% solar-to-hydrogen e... by jsonne on Thursday November 18, 2021 @03:20PM (#29269975)
It also is how they power refrigeration in meat processing to keep the freezers cold. Seems like if you put it next to those manufacturing facilities to power the freezer trucks and facility itself you could save a significant amount of energy and reduce greenhouse gasses.
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Re:Solar-driven water splitting at 13.8% solar-to-hydrogen e... by jhloa2 on Thursday November 18, 2021 @03:48PM (#29270322)
Probably not as much as you'd think. Ammonia is used as a refrigerant in a closed-loop system. You'll eventually have some leaks and have to recharge the system, but the ammonia isn't a consumable item in this process.
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