Speaking about Germany in particular: We need hydrogen infrastructure anyway, if nothing else then as chemical feedstock and for steel smelting. And the pipeline network is already half-way in place, more and more parts are getting switched over from natural gas (the network started out as a coal gas network (hydrogen content of often over 50%) before natural gas became a thing, it's built to the necessary standard). Bonus: The pipeline network can store three months of total (not just electricity) of energy usage between minimum and maximum operating pressure.

Wind farms and electrolysing plants as well as conversion to ammonia (because transport) is getting built in Namibia and Canada, scheduled to be our main energy partners in the future.