Hydrogen fuel cells are further along than you may know. We are very close to mass producing fuel cells for industrial trucks. The payback would be great for big companies. When you compare all the cost that comes with the dangerous lead acid batteries/changing equipment or LP trucks/high maintenance, hydrogen is the way to go. Less Platinum is needed for fuel cells today and is decreasing every year. Alternative metals are being used in some applications(nickel w/carbon coating). As for the automotive industry, that's another discussion.
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