Wind energy could surpass global power demand – with huge hurdles

 Installing enough wind turbines to power the world may not be practical or even feasible, says author of new report

Wind energy could provide 20-100 times current global power demand, according to a study published this week in Nature Climate Change. Other studies have shown similar results, but they do not mean that wind power is all we will ever need, says Ken Caldeira of Stanford University's Carnegie Institution, and co-author of the new study."We're always going to need a variety of energy sources," Caldeira told the Guardian.

Nor does it mean installing enough wind turbines to power the world is practical or even feasible. There are significant technical and resource problems to overcome, not least of which is finding the money to construct millions of turbines, he acknowledged.

Read more:  http://www.guardian.co.uk/environment/blog/2012/sep/12/wind-energy-power-demand

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