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Clarkson says: No electric car for you!

Discussion in 'Electric Vehicles' started by tonybelding, Sep 17, 2007.

  1. tonybelding

    tonybelding Active Member

    Aug 17, 2006
    Hamilton, Texas

    The most relevant bit is this:

    You will not have an electric car either. As the G-Wiz proves, They. Do. Not. Work. They run out of juice whenever it’s raining, or dry, or windy. And to charge them up again you have to plug them into a socket that is fed by . . . a power station. Yippee.

    Aside from the "long tailpipe" argument which has already been debunked so many times it hurts. . . Using the G-Wiz to condemn all electric cars is like condemning all gasoline-powered cars based on your experience with a Trabant.

    Clarkson then proceeds to tout the wonders of hydrogen fuel. Wait a minute! He was concerned about where we're going to get electricity to charge our electric cars, but where we're going to get power to produce hydrogen doesn't concern him at all?

    Ah. I almost forgot, hydrogen is "the most abundant gas in the universe." Maybe they'll run a pipeline from Jupiter.

    Clarkson again:

    The fact is that the best way of storing hydrogen is between the atoms in metal. Already some scientists reckon they have gone one better and have worked out a way of putting 30 litres in a single gram of graphite. And 30 litres would be enough to take a family saloon of the future 5,000 miles.

    30 liters of hydrogen gas is about three grams. Which will indeed carry your family car 5,000 miles -- if we assume, for the sake of argument, that your family car gets the equivalent of 600,000 MPG efficiency.
  2. DDB

    DDB Member

    Sep 1, 2006
    Tony, know that saying...never argue with an idiot? Well...why bother. If Clarkson sat for ten minutes in your Roadster once delivered, he may be singing a different tune.

    The likes of ZAP, G-Wiz and other EVs in such a class should not be compared to the whole range of EVs anyhow. Comparing these golf carts with practical EVs like the Roadster or Phoenix is completely ridiculous.

    Moreover, I say let this guy pay $8-10 per gallon when we'll be paying virtually nothing in energy costs. The only problem with these people are the fence-sitters may listen to them.
  3. Brent

    Brent Member

    Apr 18, 2007
    Los Angeles, CA
    Do you have handy the conversion math between hydrogen volume and weight?

    I read somewhere that a kilogram of hydrogen is roughly the energy equivalent of a gallon of gasoline. Some of these hydrogen cars would store as much as 3-4 kilos of hydrogen, depending on pressurization.
  4. TEG

    TEG TMC Moderator

    Aug 20, 2006
    Silicon Valley
    There is actually a little bit of a connection between Nickel Metal Hydride (NiMH) batteries and hydrogen fuel stored bound to metal. In a way fuel cells are a bit like NiMH batteries but you let the hydrogen escape as water vapor and have to use an external device to extract new hydrogen to "refuel it".
  5. Cobos

    Cobos S60 owner since 2013

    Jun 22, 2007
    Oslo, Norway
    Actually his numbers are pure sillyness without any pressure value. If we for the sake of the argument assume he means 30L of H2 gas at atmospheric pressure and 0C that is 30/ 22,5 = 1,33 mole of H2 gas. Weight of H2 gass is 2,016g/mol. So this would be 1,33 x 2,016 = 2,688 grams of hydrogen gas.
    So 1 kilogram might be roughly equivalent to one gallon of gasoline. But that is still after these data about 11 160 liters of H2... Yes you read that right 11 thousand liters of H2 gas.

    Isn't math fun :)


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