[lowercase1]

1. Hydrogen distribution might be able to use/share natural gas infrastructure (not high yield so embridlement isn't as big an issue)

2. Hydrogen is used for chemical processes (refining/ammonia) that can serve as a first step even if use for energy storage never becomes feasible.

3.Hydrogen is cheaper to store (<$10) per kWh than basically anything else (>$50).

But it basically won't be relevant until we have 12 hours of storage and zero marginal cost electricity 50+% of the year. Then it may be cheaper than overbuilding renewables or capturing gas emissions to cover the last 10-20 percent

[neaanopri]

If there's abundant pure hydrogen, synthesizing methane gets a lot easier, and we can use natural gas infra with no modifications.

One of the cases I think about for Hydrogen is moving energy around globally. The Sahara has tons of energy potential, but nobody lives there. How can we move that energy around efficiently, even across continents? Definitely not "batteries on boats"

[sunstone]

A project has been announced to move energy from the Australian outback to Singapore, a distance of over 3000km mostly underwater.