Ouch !

[pahoated]

Fuel cell. Hydrogen tanks for fuel cells usually have chambers and there are more than a few solid storage systems on the near horizon. Auto manufacturers have done extensive tests with 5000psi hydrogen tanks and the cars have disintegrated with the tank intact.

http://images.thecarconnection.com/med/h...7417_m.jpg

This contract is with Hydrogenics. Below is their installation for delivery vans, using 2 5000psi tanks. It will be interesting to see what the operational evaluation of the buses will be.

http://www.htdc.org/fuel-cell-powered-vehicles.html