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posted by Cactus on Friday February 28 2014, @03:31AM   Printer-friendly
from the breaking-wind dept.

Fluffeh writes:

"At the recent meeting of the American Association for the Advancement of Science, Mark Z. Jacobson, a professor of Civil and Environmental Engineering at Stanford, spoke in a session on renewable energy.

Jacobson was invited to speak at the conference because he has developed a roadmap to convert the entire U.S. to renewable energy using primarily wind, water, and solar generated energy. His detailed analysis includes looking at costs and benefits on a per-state basis, including the obvious benefits to human health from reduced pollution. One of his slides showed a very unexpected benefit, however: taming of destructive hurricanes with the help of offshore wind farms.

Jakobson's study, co-authored by Cristina L. Archer and Willett Kempton, has been published in Nature Climate Change (full text available here)."

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  • (Score: 1, Insightful) by Anonymous Coward on Friday February 28 2014, @12:55PM

    by Anonymous Coward on Friday February 28 2014, @12:55PM (#8453)

    Except for water there is no green energy source that is predictable and scalable for use in a national size grid. The main reason for that is that we lack the technology to store energy in a big and efficient way. (Excpet for hydroplants that are extremely location dependent)
    If 80% of your energy comes from wind and solar, then what are you going to do on a calm winter night? Your fucked, unless you were able to build big energy reserves. When we have that tech, we can go all green on most of the planet, except for just in Iceland now. (loads of hydroplants + geothermal + big area with small population makes that possible)

    Furthermore, the cost is a big deal. Even if (a big if) the windmills can soak energy out of a hurricane, I doubt the windmill farm can withstand a hurricane without damage. Repairing that damage in the ocean is likely to be more costly than on land.

    One more big problem for windmills (this is a few year old knowledge, might be improved at this time): Their peak generation is at windspeeds around 60 km/h. If the wind goes much faster then that, they actually shut down the windmills, turn them in a direction they catch least wind and lock them in place. Apparently, something in the windmill can't take it if the blades spin to fast. So that pretty much invalidates the entire idea that they can draw energy from hurricanes.

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