Fracking hell! Why hydrogen isn't happening.

Last week the UK's first public hydrogen filling station opened in Swindon. This news item slipped through the net somewhat, as all the media attention seemed to be focused upon the discovery of a natural gas field beneath Blackpool. However I believe that our new hydrogen filling station is just as significant a development, if not quite as "sexy" as 200 trillion cubic feet of shale gas.

The hydrogen filling station looks like a conventional petrol station, and it takes a...