Live in the south like I do and get plenty of sun, much of which is consumed in the summer for our intense use of A/C, which is great from a storage standpoint (no need to store much for long when much of the power you generate is on long summer days is used on those same days and nights).
But long term storage in the winter is still an issue, even in the south. When we go for a week or two with little sun in the winter we'd have to have a ton of battery storage to hold enough solar energy to get us through that. That's too cost prohibitive. But a home hydrogen electrolysis/storage system can produce hydrogen during the spring and fall (when we get plenty of sun but consume little power because the climate is nice) to use later in the winter (convert hydrogen into electricity).
And hydrogen gas is lighter than air. So if your outside tank leaks it rises up into the atmosphere safely away from your house and property. A bummer for when you need the power, but not a fire hazard.
But this ain't gonna happen with control-freak Dims managing our "green energy" for us. It'll only happen when we take over our energy production ourselves and not let government control our energy consumption with sky high rates and a China type social credit score determining who has to pay what just to cool their house.
Every hydrogen container leaks.
The atoms are so small they go right through the sides, even stainless steel. They will then get ‘hydrogen embrittlement’ and a good solid hit will make them crack.................