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Archive:000/Hydrogen gas: Difference between revisions
→How much would be needed, if hydrogen were scaled up?
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One benefit of fuel cell vehicles is that they're more energy-efficient than combustion vehicles (i.e. less hydrogen used per kilometer driven). | One benefit of fuel cell vehicles is that they're more energy-efficient than combustion vehicles (i.e. less hydrogen used per kilometer driven). | ||
The problem is, fuel cells would need 7 times the PGMs of Scenario 1 {{light( | The problem is, fuel cells would need 7 times the PGMs of Scenario 1 {{light|(estimated)}}. Perhaps too much to be scalable. And this is true even though we factored in the recycling of old catalytic converters this time (which have less than 1/10th the PGMs of a hydrogen fuel cell vehicle, on average). | ||
'''Verdict:''' | '''Verdict:''' | ||
* If we're going to have hydrogen-powered vehicles, most of them will probably have to be combustion only (or some sort of hybrid with just a very small fuel cell). | * If we're going to have hydrogen-powered vehicles, most of them will probably have to be combustion only (or some sort of hybrid with just a very small fuel cell). | ||
* PGMs are | * At least PGMs are not a limiting factor for wind-based hydrogen ''production''. | ||
<tab name="More discussion / research needed"> | <tab name="More discussion / research needed"> | ||