Originally posted by Philippines
Originally posted by Asktheanimals
Looks like windows and powerlines are thousands of times more deadly.
I think he's got a great idea and why not just put a wire mesh cone on the front so birds can't possibly fly in to and destroy the turbines blades?
You are correct about turbines not causing many bird deaths, and only if the proper due diligence is done. Here in the mountains for example, an
environmental impact study needs to be done for at least a year to test wind conditions, bird migratory paths, and other impacts. Point being that if
you build a windmill in a location as a bird migratory path the windmill stands a very good chance to kill many birds, seasonally.
Point being made here is that we must ignore all the evidence already present. We must ignore the vast number of wind turbines already running with
next to no additional deaths among birds.
Consider the fact that three blades on a turbine rotates at a reasonably slow speed. Birds actually see them and takes evasive action. Most birds can
easily fly among treea without having a branch "cut them down".
And as with most statistics we can lie. Talking about a 100 % increase in bird deaths as I've seen elsewhere is rediculous when one considers that
100 % increase means four instead of two on a yearly basis at a given location. We must always remember or question the numbers behind the percentages
when we read statistics.
Farmers kill vastly more predatory birds on a yearly basis but no one wants to take away their guns.
As for your point about putting shielding around the blades, sure, it is possible. But on some of these turbines that are big enough to create
kilowatts of power you are looking at rotor diameters of 80 meters, which would be a HUGE screen and quite expensive.
Those shields would be vast. And shields that big will be a significant increase in wind resistance. The pylon would take a heavy strain and possibly
break. The pivot point would be too weak and break.
All in all. No it is not possible. No more possible than a ladder to the moon. Theoretically yes, but in real life??