In Germany they're getting ahead with the situation, with Daimler and industrial gas maker Linde set to install 20 hydrogen fuel stations across the country over the coming years.
Daimler, owner of the Mercedes-Benz and Smart brands, has a deal with Ford and Nissan to develop fuel cell powertrains.
There are already 16 hydrogen fuel cell stations in operation in Germany.
It's likely that traditional fuel service station chains will eventually provide such supply too, if the fuel cell finally becomes a significant power unit. The systems are already in use in buses in a number of countries, especially Iceland.