1) There is zero elemental hydrogen on Earth. We currently get it mostly as a byproduct of....fossil fuel production. The other option is to split water into oxygen and hydrogen, but obviously this takes more energy than the resulting hydrogen could ever produce. Makes you think why don't we just use this energy to recharge batteries instead of making hydrogen with huge inefficiencies. It only makes sense if you have nearly free energy that you can dump into the process and don't care about loses.

2) Hydrogen is the smallest molecule in existence - meaning that it escapes through any container you put it in. A 70kg pure lead bottle only holds about 1L of hydrogen, and all of it will evaporate within couple months naturally. And as it does so, it makes the metal brittle. So "producing loads of hydrogen for storage" is not a great idea either.