Originally Posted by clett

This is an absolutely ridiculous idea.

To make the hydrogen in the first place you have to throw away ~50% of the energy present in the electricity / natural gas. Then there is compression and transportation, not to mention a vastly expensive infrastructure and of course the cost of the home fuel cell itself. If using the fuel cell to make electricity for the home, you only get 20% (yes, 20%) of the original energy back out that you put in to make the hydrogen.

Why bother with any of that?

Just use the electricity directly for heating / power / hot water. Trying to squeeze in a use for hydrogen in any part of this is just crazy.