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View Diary: A Fired up Al Gore Calls for Civil  Disobedience (348 comments)

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  •  The New, Huge Turbines - (1+ / 0-)
    Recommended by:
    NeuvoLiberal

    Are often 300 ft high with close to a 300 ft rotor diameter.  Reduced airspeed and disturbance increases geometrically with increase in size.  Turbines tend to be placed closely in one linear direction - perpendicular to the prevailing wind direction - and widely spaced with alternating placement in the direction of the prevailing wind.  Local topography also dictates placement - with ridge lines being ideal locations.  Ridges, however, are not uniformly spaced in any given area.

    The photos - esp. the professional ones, often use foreshortening and other photographic effects to encompass an entire wind farm.  In addition, the size of the rotors is immense - see photo below -  notice the workers.  And those blades are only mediums.
    http://www.windpower.org/...

    Super large towers need to be placed at least 4x to 5x rotor diameter in the perpendicular direction and 8x to 10x in the prevailing direction.  These numbers may approach 6x and 12x with the newest generation of wind turbines.  Some of the earliest wind farms - notably Altamont Pass was one of the earliest wind farms and had excessive packing which is not only inefficient, but also quite dangerous to wildlife.

    Article on siting -
    www.cwet.tn.nic.in/Docu/Micrositing Guidelines.pdf

    The editor would not accept the link.
    Please copy and past the address with "http://"

    •  if the turbines are that widely (1+ / 0-)
      Recommended by:
      johnnygunn

      spaced, then I don't see why the land in between can't be used for farming and other things, as eg, in this ND wind+corn farm: http://science.nationalgeographic.co...

      Another possibility in uninhabited + unfarmed land is to cover most of the land with solar panels so we can get both wind and solar from the same land that's divested for this purpose. I am still holding onto the thought that combined with conservation, we can meet a good portion of our non-automotive energy needs from a wind+solar+wave energy mix in the future (say 10-20 years from now.)

      Go Obama/Biden! Throw the bums out!!

      by NeuvoLiberal on Wed Sep 24, 2008 at 08:23:40 PM PDT

      [ Parent ]

    •  I'll bookmark (1+ / 0-)
      Recommended by:
      johnnygunn

      and go over your material as time permits. Thanks for the discussion.

      Go Obama/Biden! Throw the bums out!!

      by NeuvoLiberal on Wed Sep 24, 2008 at 08:24:39 PM PDT

      [ Parent ]

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