Re: ots of responses, one email, easy deleting, low in calories

["julian ginniver" <julian.ginniver@lineone.net>]

Otto,

In response to your comment :

> The fraction of the

> wind power that passes them that is harvested is obviously very small.



The theoretical maximum of the aerodynamic efficiency of a wind turbine,

known as the Betz limit, is 59.3%.  In practice, modern wind turbines can

achieve efficiencies of between 40-50% (source UK Department of Trade and

Industry).



Regards

    Julian Ginniver







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