članek - vetrne turbine lahko zmanjšajo moč orkana

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That's the finding of a ground-breaking study today that says mammoth offshore wind farms can tame hurricanes rather than be destroyed by them. It says a phalanx of tens of thousands of turbines can lower a hurricane's wind speed up to 92 mph and reduce its storm surge up to 79%.

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His team used complex modeling to simulate the impact that tens of thousands of turbines — more than exist in any single wind farm worldwide — would have had on three hurricanes: Sandy and Isaac, which struck New York and New Orleans, respectively, in 2012 and Katrina, which devastated New Orleans in 2005.

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An array of 78,000 wind turbines — each 50 feet tall — off New Orleans could have slowed Katrina's wind speeds up to 78 mph and cut its storm surge up to 79%. An even larger phalanx off the East Coast could have reduced Sandy's winds up to 87 mph and its storm surge up to 34%. These farms minimize a city's storm surge most when located directly upwind.

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This is a pretty neat idea, but it's expensive and borderline feasible," says Stephen Rose, an expert on wind energy at Carnegie Mellon University. He led a 2012 study that said hurricanes could destroy some turbines. Yet his team later issued a correction, saying there's only a 7% risk of hurricanes destroying at least half of turbines off the Gulf Coast and almost no chance of such damage on the East Coast.

"It's not practical — 78,000 turbines," says Dominique Roddier, an engineer who's working on a new design for a floating wind turbine by Seattle-based Principle Power, referring to the size of wind farms in Jacobson's study. "That's an insane number of wind turbines. You can't build that many."

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