Wind Turbines: “It’s always something.”

Darrieus Vertical-Axis Wind Turbine

Darrieus Vertical-Axis Wind Turbine in Martigny, Switzerland (Source: Lysippos, Wikimedia Commons author (GNU Free Documentation License) (Public Domain))

The recent TGDaily article Wind farms could raise temperatures” [Posted March 12, 2010 – 04:27 by Emma Woollacott] presents a possible surprise environmental concern about using millions of wind turbines to generate clean electrical energy.

It seems that wind turbines change how heat dissipates in the areas downwind of them, because they slow the wind as it spins their propellers. Once one begins to think about it, this makes perfect sense.

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Wind Turbines: “It’s always something” [VIDEO]

UPDATE, 4/30/2012: Along the lines described in this piece: NASA Satellite Measurements Imply Texas Wind Farm Impact On Surface Temperature

UPDATE: 4/9/2012: On Wednesday, April 11th, I’ll be doing a show on Energy Independence on KPFT-FM 90.1 (Houston). You can read about the show and how to hear it here.

Since wind energy will be a topic of discussion, it seemed like a good time to re-post this piece, originally written by me in April of 2010.

– Mike

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It seems that wind turbines change how heat dissipates in the areas downwind of them, because they slow the wind as it spins their propellers. Once one begins to think about it, this domino effect makes perfect sense.
Continue reading