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How can we reach our 2020
Greenest City Targets?

Heman Matharu

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  1. Hydrogen Powered

    3 votes
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    6 comments  ·  GC 2020 » Reduce greenhouse gas emissions  ·  Admin →
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    Heman Matharu commented  · 

    RE: Paul Shorthouse
    Yes we have the conundrum of how we can get the hydrogen, the transportation, the parts of the cell, the labor hopefully with little or no emission. Sort of a paradox isn't it? Can't get the technology of green energy without using an un-green energy source to make the green energy possible, but we can try I guess. :)

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    Heman Matharu commented  · 

    RE:Drive More
    Yes, Hydrogen can be explosive. But even gasoline has been known to be explosive but in fuel cells they do not use an engine so no explosives there. And even in an engine with hydrogen the engine can take the pressure (Although the use NASA does with liquid Hydrogen AND liquid Oxygen in large quantities it can be a problem), plus if the hydrogen leaks somehow it disperses quickly because it is a VERY LIGHT GAS (emphasize on light). Even if it ignites it will just pop. Look it up. No burn. You may see the Hindenburg and say hydrogen is bad, but the danger was the hydrogen mixing with the metal on the blimp. There was a mythbusters episode on this, look that up too. And the use I'm talking about is in small amounts (no rocket ship here) and mainly in gas form. There were more explosions of gasoline than hydrogen.
    PS - Hydrogen has a specific energy (MegaJoule per kilogram) of 143 in all forms and a energy density (MegaJoule per litre) of up to 10.1 in liquid, and 0.01079 in gas form. For gasoline the specific energy is 53.6 and the energy density is 34.2. Gasoline is more explosive and less powerful. HYDROGEN FTW!

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  2. Install outlets for electric vehicles in parking lots

    13 votes
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    6 comments  ·  GC 2020 » Travel predominately by foot, bike, and transit  ·  Admin →
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    Heman Matharu commented  · 

    Yes it seems green, but you also have to put in the fact that the energy used to create the electricity may be from burning fossil fuels. Maybe the use of a small plant such as solar, wind, hydro-electric and even hydrogen will reduce the waste creating the electricity compared to getting the electricity to some fossil burning fact. I'm not saying it's a bad idea, though there is some room to improve.

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