I have heard it said, but cannot substantiate it, that an on-shore 
installation will have an overall energy payback time of 3 years in a 
suitably exposed position. I suspect an offshore installation will be 
somewhat longer. However, in the UK, a wind farm will work at ~14 - 18% 
of its rated capacity; where you and I live, somewhat less at <10%.

Brian

Edward Szpruch wrote:
> Brian,
> I believe this is another "heard braking" story.
> Just for curiosity, what is environmental impact of construction of such
> huge "wind farm" starting from manufacturing of metals for turbines and
> finishing with fuel burn by digging machinery for fundaments of wind
> towers???
> Edward
> 
> Edward Szpruch
> Eltek Ltd
> P.O.Box 159 ; 49101 Petah Tikva Israel
> Tel  ++972 3 9395050 , Fax  ++972 3 9309581
> e-mail   [log in to unmask]
> web site : www.eltekglobal.com
> 
> 
>>-----Original Message-----
>>From: Brian Ellis [SMTP:[log in to unmask]]
>>Sent: á îàé 09 2005 13:30
>>To:   [log in to unmask]
>>Subject:      [EN] An ugly face of ecology
>>
>>http://www.guardian.co.uk/guardianweekly/story/0,12674,1476077,00.html
>>
>>Are wind farms really the answer?
>>
>>Brian
>>--
>>______________________________________________
>>Please note new e-mail address [log in to unmask]
> 
> 

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