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Re: GERMAN windmills SUBSTITUTES WIND FOR NUCLEAR POWER
Jaro is right, Yusuf is wrong:
Put the windmill at the centre of a 250 m x 500 m rectangle. Each windmill
uses 0.125 km^2 of land.
Philippe Duport
----- Original Message -----
From: "Yusuf GÜLAY" <yusuf.gulay@taek.gov.tr>
To: "Radsafe (E-mail)" <radsafe@list.vanderbilt.edu>; "Franta, Jaroslav"
<frantaj@AECL.CA>
Sent: Thursday, June 14, 2001 4:44 AM
Subject: Re: GERMANY SUBSTITUTES WIND FOR NUCLEAR POWER
> Hi,
>
> I would like to draw your attention to the mistake on the calculation of
> area per windmill at your message.
>
> The mesh will look like as shown on the simple figure below,
>
> | |
> |
> | |
> |
> -------X------------------------X------------------X------
> | |
> |
> | |
> |
> | 0.125 km^2 | |
> | |
> |
> -------X------------------------X------------------X-------
> | |
> |
> | |
> |
>
> If you look at the calculated area 0.125 km^2, this will cover 4 windmills
> per sub mesh. So the area per windmill sould be corrected as
0.125/4=0.03125
> km^2.
>
>
>
> ----- Original Message -----
> From: "Franta, Jaroslav" <frantaj@AECL.CA>
> To: "Radsafe (E-mail)" <radsafe@list.vanderbilt.edu>
> Sent: Tuesday, June 12, 2001 8:34 PM
> Subject: RE: GERMANY SUBSTITUTES WIND FOR NUCLEAR POWER
>
>
> > I hope everyone noticed the contradiction between the two statements,
> >
> > " Trittin told journalists in Berlin that the wind power plan could see
> > between 75 and 80 terrawatt hours of electricity annually from
> > offshore wind parks by 2030. This is equivalent to nearly 60 percent
> > of the nuclear electricity produced last year in Germany. "
> >
> > and
> >
> > " Trittin said that two areas of the North Sea have been identified as
> > appropriate for the construction of wind turbines which could total
> > 4,000 by 2030. He said that the areas avoid all marine and bird
> > conservation areas. "
> >
> > ....because 75 to 80 terawatt hours of electricity annually comes to a
> > steady supply of about 8,790 MWe, which for the typical 25% average
> capacity
> > factor of windmills leads to a total installed capacity of some 35,160
> giant
> > windmills, each with 1MWe theoretical capacity -- or about 8.8 times as
> many
> > as Trittin claims in the second statement (windmills as large as 1.5 - 2
> MWe
> > have been built, but the 1MWe ones - and smaller - are much more common
> and
> > even the former wouldn't make up the factor-of-8.8 difference....).
> >
> > Furthermore, if these windmills have 50-metre-diameter blades, and they
> are
> > spaced at 10 blade diameters by 5 blade diameters, it takes 0.125 square
> > kilometres per windmill, or 4,395 square kilometres total -- and since
> > Germany's North Sea and Baltic Sea coasts are only a few hundred
> kilometres
> > long, the rows of proposed windmills will be about 10 kilometres deep --
> in
> > other words, the Germans can KISS THEIR COAST LINE GOOD-BYE ! ....any
> bets
> > on whether this will actually ever happen ?
> >
> > .....but its encouraging that at least some folks over there are not
> blinded
> > enough to recognise that there are environmental impacts of such "green"
> > energy :
> >
> > " Offshore wind power is contentious among Germany environmentalists
> > who are deeply divided about its environmental impact. The ministry
> > does not expect its plan to get an easy ride so it has invited
> > ecologists to a two-day congress this week to debate the
> > "integration of climate protection, nature protection, marine
> > protection and energy policy fit for the future."
> > <SNIP>
> >
> > Jaro
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