Q What do fuel cells use as fuel?
Q Where does the Hydrogen come from?
A The only industrial scale manufacture of Hydrogen is from fossil fuel.
Q Why do BMW and Mercedes Benz advertise zero emission fuel cell cars when
the emissions are, in fact, just relocated to the place where fossil fuel is
turned into Hydrogen?
good point. first off, by zero emission what is meant is zero
'harmful' emissions. Moreover, some so called zero emission cars that
emit CO2 are not such - although CO2 is not a terribly harmful emission to
have. yes, the emissions are in fact just relocated, nevertheless they can
then be better controlled (ever drive behind an old MB diesel :-)). You
can even generalzie further than fossil fuels. Eg, even electrolysis using
solar cells will first need to have the solar cells made - again there is
pollution in their manufacture. A strong case can be made though that the
emmissions for a fuel cell (whatever form they take) are far, far more
benign than those of our present engines.
Let me add here that MB does _not_ think particularly highly of fuel
cell cars -hype nothwithstanding - since MB does apperently not believe
that such cars can be build at the price point AND with the features that
customers are willing to settle for. MB is in fact banking on the future,
intermediate future that is, success of diesels. Biodiesels are a particularly
good bet I would think
I agree that the biodiesel is a great
thing - especially since biodiesel is
so clean and economical.
However, the power necessary to create
hydrogen can come from clean sources even
if it does not do so now.
Wind farms are a good possibility. There have
been a couple of billion dollar plus projects
recently announced and the economics of that
technology is apparently competitive. I see no
reason why this technology cannot be scaled up
by the two or three orders of magnitude necessary
to make all electrical power clean and have a huge
surplus necessary for copious hydrogen generation.
Hydro is another example. From what I understand,
the Six Gorges dam in China will produce so much
power that the Chinese will have a hard time using
it all. That surplus could also go to hydrogen
I should add that I am not an expert on these
technologies and I am just making inferences
based upon what I have read.
True enough, nevertheless, ask the people in these affected areas
if they believe that they are being polluted and most, I would venture to
guess, would think that they are. Especially the six Gorges dam, where I
hope the archeologist will get their work done in time.
Even if H2 is supplied in an environmentally more benign fashion, there
is still the problem of pumping the H2..... we are simply not set up to do
this except, possibly, for fleet operations. It will be interesting to see
how the H2 experiment in Icland will work out.
Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here.
All logos and trade names are the property of their respective owners.