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New research finds that wind farms actually warm up the surface of the land underneath them during the night, a phenomena that could put a damper on efforts to expand wind energy as a green energy solution.
"Smaller turbines can avoid this problem," Dabiri said. "However, this presents a tradeoff, because wind speed decreases as you move closer to the ground; so the smaller turbines would experience lower incoming wind speeds on average."
That means a smaller turbine makes less power.
Dabiri said Zhou's findings may mean taking a second look at the trade-offs with renewable energy. "It shows that we need to think carefully about the unintended environmental consequences of any large-scale energy development," Dabiri said, "including green technologies."
Analysts say wind power is a good complement to solar power, because winds often blow more strongly at night while solar power is only available during daytime hours. But Zhou and his colleagues found that turbulence behind the wind turbine blades stirs up a layer of cooler air that usually settles on the ground at night, and mixes in warm air that is on top.
Originally posted by Skewed
If the temperature does not exceed that of what a car does, then I am not interested in hearing the complaints. What about the heat from cooking equipment, shall we stop cooking too? I hate this sort of stuff, especially when there are similar things going on that far exceed this smaller perceived issue. Al Gore at it again.
Originally posted by RandomEsotericScreenname
reply to post by MESSAGEFROMTHESTARS
Such nonsense, warming up the earth.
Wind farms only cover a tiny little bit of surface of the earth, now they might warm up that tiny bit of surface but not the earth obviously.
Seems to be oil industry propaganda to me.
It's not warming up the earth any more than buildings and roads are on the same sized piece of surface.edit on 30-4-2012 by RandomEsotericScreenname because: (no reason given)
FAA data shows that the number of wind turbines over the study region has risen from 111 in 2003 to 2358 in 2011, according to the study.The warming could hurt local farmers, who have already suffered through a killer drought over the past few years. Texas agriculture contributes $80 billion to the state's economy, second only to petrochemicals, according to the Texas Department of Agriculture.
Originally posted by mikellmikell
Really heat is not heat it's lhe absence of cold. Cold exist heat is just a lack of cold. (Dreged up from some long ago physics class )