Bats are killed because a sudden drop in air pressure near the blades caused injuries to the bats' lungs known as barotrauma.
- Sept 28, 2009
First application: Power the Batmobile! --Ed.
Scientists at the University of Calgary have found a way to reduce bat deaths from wind turbines by up to 60 percent without significantly reducing the energy generated from the wind farm. The research, recently published in the Journal of Wildlife Management, demonstrates that slowing turbine blades to near motionless in low-wind periods significantly reduces bat mortality.
"Biologically, this makes sense as bats are more likely to fly when wind speeds are relatively low. When it's really windy, which is when the turbines are reaping the most energy, bats don't like to fly. There is a potential for biology and economics to mesh nicely," says U of C biology professor Robert Barclay, who co-authored the paper with PhD student Erin Baerwald of the U of C as well as with Jason Edworthy and Matt Holder of TransAlta Corporation....[Read More]