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View Diary: The simple innovation that could make wind power a big player (230 comments)

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  •  Progress is being made on bat kills. (3+ / 0-)
    Recommended by:
    Fonsia, JeffW, raincrow

    http://www.batsandwind.org/... (pdf).  

    ...changing turbine “cut-in speed” (i.e., wind speed at which wind-generated electricity enters the power grid) from the manufactured speed (usually 3.5–4.0 m/s for modern turbines) to 5.5 m/s resulted in at least a 50% reduction in bat fatalities compared to normally operating turbines.
    Considering the dire danger that climate change poses to all life on earth, this is an important difference.  

    Renewable energy brings national global security.     

    by Calamity Jean on Tue Jan 22, 2013 at 07:23:49 PM PST

    [ Parent ]

    •  Great news! Thanks! n/t (2+ / 0-)
      Recommended by:
      JeffW, raincrow

      Enjoy the San Diego Zoo's panda cam! Now with new baby panda! And support Bat World Sanctuary

      by Fonsia on Tue Jan 22, 2013 at 08:27:09 PM PST

      [ Parent ]

      •  I'm glad you liked it. The turbines can be run (2+ / 0-)
        Recommended by:
        JeffW, Fonsia

        at the lower wind speed from one hour after sunrise to one hour before sunset without affecting the bats, which sleep during the day.  And the wind has much lower power at lower speeds anyway.  In other words, the wind power company doesn't lose much, and the bats gain a lot.  

        Renewable energy brings national global security.     

        by Calamity Jean on Wed Jan 23, 2013 at 09:02:45 AM PST

        [ Parent ]

        •  Let's hope they can make it even better (0+ / 0-)

          So many bats were being killed that a 50% reduction still leaves many thousands dead.

          The best news here is that they're trying to fix this problem. The fossil fuel industry not only wouldn't even try, they'd scoff at the idea.

          Enjoy the San Diego Zoo's panda cam! Now with new baby panda! And support Bat World Sanctuary

          by Fonsia on Wed Jan 23, 2013 at 10:20:24 AM PST

          [ Parent ]

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