• fine_sandy_bottom@discuss.tchncs.de
    link
    fedilink
    arrow-up
    0
    ·
    8 months ago

    I’ve provided a rebuttal for the other replies which you might find interesting.

    In a scenario where you’re considering using roof-top solar to produce hydrogen for your car then yes, the inefficiency of cracking hydrogen from water makes it unappealing.

    The thing is, I don’t think most of the world has access to roof-top solar and the portion that does will diminish as population and population density increases.

    If you consider for example this project in Western Australia covering 15,000km2 it makes a lot more sense. The land (and associated sun light) is practically free. Hydrogen is a far more cost effective method of energy storage to get the energy from middle-of-nowhere-west-aus to market.

    I guess one way to look at it is that hydrogen is a better option if the cost of the solar energy is less than a third of what it would be if you produced it nearby.

    • taladar@sh.itjust.works
      link
      fedilink
      arrow-up
      0
      ·
      8 months ago

      Counterpoint, most of the world does not have access to “middle of nowhere” regions with lots of sunlight, that is just Australia and a few places near major deserts.