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Thursday, March 14, 2013

Big Wind & Avian Mortality (Part I: Problem Identification)

by Jim Wiegand
March 14, 2013


“The [2004 California Energy Commission] study also discussed how higher raptor mortality occurred when smaller towers were “upgraded” with larger turbines and proportionally longer blades. These wind turbines offered what raptors perceived as intermediate to very big windows of opportunity to fly through what looked like open spaces between towers…. However, the industry … rapidly installed thousands of these much larger turbines across America … and focused attention on new study results that reflected far less accurate (and honest) searches and surveys.”
In 1984, the California Energy Commission concluded in regard to the state’s wind industry: “[M]any institutional, engineering, environmental and economic issues must be resolved before the industry is secure and its growth can be assured.” Though it was between the lines, the primary environmental issue alluded to was the extreme hazard that wind turbines posed to raptors.

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