It's not, but it might be interesting for electrical storage of excess renewable energy, especially in concert with a less reactive storage material. http://en.

It's not, but it might be interesting for electrical storage of excess renewable energy, especially in concert with a less reactive storage material. http://en.wikipedia.org/wiki/Hydrogen_storage http://en.wikipedia.org/wiki/Hydrogen_storage Though many places seem to want to solve the issue for cars, while to me it makes more sense to solve it for buildings before making it portable enough for cars.