It's very questionable if this helps at all. The energy needed to desalinate water is tiny compared to the energy needed for hydrogen production via electrolysi

It's very questionable if this helps at all. The energy needed to desalinate water is tiny compared to the energy needed for hydrogen production via electrolysis. You're saving small amounts of energy in exchange for a more complex process. Here's a more detailed explanation: https://www.linkedin.com/posts/paul-martin-195763b_new-electrolyzer-to-split-saltwater-into-activity-7016069691395760128-S-Ch https://www.linkedin.com/posts/paul-martin-195763b_new-elect... Here's the crucial sentence: "Desalination of seawater by reverse osmosis takes only about 0.035 kWh/kg of H2 produced, i.e. a trivial fraction of the energy (50-65 kWh/kg) required to produce a kg of hydrogen by electrolysis"