posted on Mar, 1 2011 @ 10:33 PM
Hydrogen is generated using either natural gas or through electrolysis of water. Electrolysis requires electricity. And the total efficiency of a
internal combustion engined
car fueled by hydrogen created through electrolysis is rather terrible.
Wind-to-Wheel Energy Assessment
According to my math you will need 135 kilowatt hours to travel 100 kilometers using an internal combustion engined
car fueled by hydrogen
created through electrolysis. At 11.5 cents per kilowatt-hour, the average in the United States for residential users, is $16 per 100 kilometers. I
pay 5.2 USD per US Gallon in Australia... fuel costs me $11.07 per 100 kilometers in my car that gets just above 8 litres per 100km (30mpg). In other
words, assuming the car in the study was similar to mine, in reality this fuel will cost over $7 per gallon even when using cheap electricity.
Interestingly, electricity is much cheaper than oil when an equal amount of energy is actually used. Since this is more expensive, it's because it is
extremely inefficient and hence is using more energy, so it would likely have an even larger environmental impact over oil. An electric car will
utilize the same amount of electricity six times more efficiently.
Of course, it is possible to obtain hydrogen from natural gas, but then there's the question of why we don't just burn the natural gas directly, which
would likely be less complex, easier, and more efficient.
The
only way this could possibly be a good idea is with advancements in electrolysis currently at the laboratory scale,
and special
hydrogen fuel cells that are more than twice as efficient as the Internal Combustion Engine.
You want fuel that costs the equivalent of less than $1.5 per US Gallon? The only existing technology that can do that is the EV. We only need to
drive the capital cost down which can be done through mass-production.
edit on 1/3/11 by C0bzz because: (no reason given)
edit
on 1/3/11 by C0bzz because: (no reason given)
edit on 1/3/11 by C0bzz because: (no reason given)