Power supply to remote temporary areas like construction sites. Let’s say you need 100kW for 12 hours a day for a month to the middle of nowhere. You could run new power lines and get the connected, over land you don’t own, taking months. Or you could bring in a hydrogen generator and ship in new bottles to “recharge” it.
Oh, I would have considered using hydrogen for manufacture as obviously a separate topic. Do people really reject that idea because of hydrogen's issues as energy storage?
For storage and transport, I feel like the situations where is close to the best option are extremely limited, but I guess we'll see.
The issue plagues moving forward with other energy solutions like hydrogen.