Why are you afraid of hydrogen? Compared to the lithium ion batteries or even the LPG or petrol for a generator hydrogen is very safe. It's a common misconception that hydrogen is dangerous. You can stick a flame into pure hydrogen and nothing will happen. It's only if you mix with oxygen that it becomes dangerous, but because hydrogen is lighter than air it's going to dissipate very quickly if you have a leak in your container (unlike e.g. Gasoline fumes)

I'm afraid of hydrogen due to hydrogen embrittlement. I wouldn't appreciate my high pressure tanks turning into bombs (no ignition or O2 required).

The Humanity.