Yes, hydrogen can be used as a medium in which to store excess generated power for later use, like a huge battery. This makes it incredibly useful, as most of this excess generated power is wasted at present. I'm still unsure as to why you don't believe that it should be used to power automobiles.
And please cut down on the all of the damned hostility. I can't speak for anyone else, but I'm trying to be tolerant, here, and you're really not helping the situation.
"Mind your wants, 'cause someone wants your mind."