Green hydrogen production, using solar-powered electrolysis, is admittedly in its infancy, but it can only grow from here.
Slowing that inevitable growth will be cheaper sources from already-established but less environmentally-friendly methods, and negativity from certain competing sectors, (Musk battery EV inter alia).
Wishing good luck and power to the elbows of those pioneers trying to make hydrogen work for us. Let's see what they can do.