I was flipping through the channels last night an NHK World had a special dedicated to showing off Hydrogen Fuel Cells. They had mocked up a small town, had a fleet of vehicles/forklifts, and had a lot of "label to camera" shots for Toshiba.

It all looked nice and tidy, but effectively they had to duplicate the natural gas infrastructure and then have /several/* fuel-cell objects behind houses that were about the size of a large refrigerator.

* If I remember right, one was merely to remove the odoring agent for leak detection.