> 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.
All minor quibbles in what looks like a sound analysis: you probably
ain't gonna get your transportation fuel off your roof...
Other analyses I've seen show batteries trumping fuel cells for
transportation needs. Fewer conversions typically mean better
efficiency.
:::: "We need a revolution."
:::: "Keep saying that, and we'll need a lawyer, assuming they let us
have one."
:::: Jan Steinman http://www.VeggieVanGogh.com
==============================================
List usage info: http://www.zuikoholic.com
List nannies: olympusadmin@xxxxxxxxxx
==============================================
|