Hydrogen fueling price.

A mere 7 dollars is what people will spend on a tank full of hydrogen in 5 to 12 years’ time, a study by the University of California, Davis (UCD) concludes. The reason, they say, are the planned investments in infrastructure as high as one billion dollars, as well the increasing number of fuel cell vehicles on the roads.
greencarcongress.com, ucdavis.edu (Study)