[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

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

> > ************************************************************************

> > You are currently subscribed to the Radsafe mailing list. To

unsubscribe,

> > send an e-mail to Majordomo@list.vanderbilt.edu  Put the text

"unsubscribe

> > radsafe" (no quote marks) in the body of the e-mail, with no subject

line.

>

> ************************************************************************

> You are currently subscribed to the Radsafe mailing list. To unsubscribe,

> send an e-mail to Majordomo@list.vanderbilt.edu  Put the text "unsubscribe

> radsafe" (no quote marks) in the body of the e-mail, with no subject line.

>



************************************************************************

You are currently subscribed to the Radsafe mailing list. To unsubscribe,

send an e-mail to Majordomo@list.vanderbilt.edu  Put the text "unsubscribe

radsafe" (no quote marks) in the body of the e-mail, with no subject line.