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Since the explosion at a Hydrogen filling station in Norway last month , [ there has been one in California also ] , all of the Norway stations have been closed & the Hydrogen powered cars have been withdrawn .
As well as the explosive nature of the fuel , there is the , [ already mentioned ], fact that it is not very energy efficient in production & use , it is very difficult to stop it from leaking , [ being ultra low density it will actually seep through steel ] & because of the low density requires very high pressure to have enough capacity to be of any use as a fuel .
To have any sort of range , a car will need over 5000 PSI in the tank , which leads to lots of problems with fuelling & storage .
So will probably never meet the needs of normal motoring .
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