Thanks for the correction. I don't recall all the details of that 33
kWh but it may have included an assumption of greater efficiency for a
hydrogen powered engine vs gasoline, ie, it may have been a "system"
conversion efficiency number. But I don't really recall the detail. It
may have simply been close but wrong.
Chuck Norcutt
Jan Steinman wrote:
>> From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
>>
>> From somewhere I have a note that it takes about 33 kwh to produce
>> enough hydrogen by electrolysis to equal the energy equivalent of a
>> gallon of gasoline.
>
> I think that's off a bit, but probably not by much.
>
> There's 37.6 kWh in a gallon of gasoline. If you can produce that with
> only 33 kWh input, you've got the foundation for a good perpetual
> motion machine. :-)
>
> I don't know the typical conversion efficiency of electrolysis, but
> assuming 90%, you'd need about 42 kWh.
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