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Green Building Bible, Fourth Edition
Green Building Bible, fourth edition (both books)
These two books are the perfect starting place to help you get to grips with one of the most vitally important aspects of our society - our homes and living environment.

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      CommentAuthorSteamyTea
    • CommentTimeFeb 1st 2018 edited
     
    https://www.theengineer.co.uk/solar-heavy-crude-oil/

    Seems they are going to use some RE to extract heavy crude. Rather missing the point I think.
    But at least the EROEI will be high. Tom will like that.
    • CommentAuthorowlman
    • CommentTimeFeb 1st 2018
     
    The irony in so much of what we humans do is laughable ; - if it were not so sad.
    •  
      CommentAuthorfostertom
    • CommentTimeFeb 1st 2018
     
    As the world just begins to wake up to awareness that GHGs, climate change etc is just the tip of the iceberg of all the pollutants we're releasing into the biosphere, and their varied consequences -
    maybe it's time to redefine EROEI as Environmental Return on Environment Imperiled, or Ecological Result of Ecology Impaired -
    because it's a sleight of hand to paint what we do as 'Investment' (implying 'beneficial'), when in a fuller accounting it may be anything but beneficial.

    However, use of solar (or other renewable) energy is in principle 'free' as energy (as distinct from capital and operating financial cost). So in the above EROEI calc, the energy invested could be considered zero, thus EROEI would be infinitely excellent.

    Leaving aside the fact that the Return in this particular example would be infinitely Harmful (because all fossil fuel to be used as fuel should be left in the ground) (as chemical feedstock may be OK), it's OK to 'squander' renewable energy (because it's 'free' and limitless).
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