"Hydro Kevin" reports on the competing technologies within the field.
"Standardization versus invention of new technologies is certainly a consideration for upstart companies wanting to join the race for a nationwide rollout of hydrogen cars. Perhaps the transition to hydrogen cars will involve a short evolutionary process of best technologies similar to the transition from Betamax to VHS to DVDs or records to 8-track tapes to cassette taps to CDs?"
Thanks to Kevin
