Where are you going to get the hydrogen?
And no, you can't "make" hydrogen at home. You can crack it out of water or hydrocarbons ... which requires energy. Where's that going to come from? Wind? Solar? Don't make me laugh! On second thought, do ...
"Green" energy is a lie.
The Greens hate nuclear, coal, oil, and methane. They hate hydro, which is funny: hydro power is really just solar by another name. They feed us BS about solar and wind ... and either they don't know what they're talking about, or they're lying.
You need energy to make energy for ANY solution.
The question is does it require more energy than what you produce.