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Re: OT: 'Shambolic' Sellafield in crisis again after damning safety report - Independent on Sunday

826 schrieb:


> But it seems others do, including many in the Green Party who were
> under the impression that wind turbines worked better at sea. The
> problem is they don't for much of the time. Once that wind reaches 45
> mph they have to be shut down.

Enercon's turbines have a switch-off speed between 28 and 34 m/s,
62 - 76 mph.

The RePower 5M, which were installed at the Beatrice field, have a
switch-off speed between 25 m/s and 30 m/s, that would be 56 - 67 mph.



Your knowledge is clearly based on facts of 1995. I suggest an update.


> Around 30% suffer
> failure within the first year, gearbox failures and fires are not
> uncommon.

Enercon gives an availability guarantee of 97% for the first 15 years.
Common values for achieved availability are between 98 and 99%, higher
than for any other type of power plant.

Again, I suggest an update of your 1990's knowledge.


> To avoid
> gearbox problems direct drives were introduced, but their bulk and
> weight led to several shaft failures.

Namely?


Hans-Joachim


--

House of the Rising Sun
http://foto.arcor-online.net/palb/alben/08/860608/1024_3537396266316230.jpg

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