Re: Re: Domestic wind turbine

[Jim Noble <yahoo-groups@xxxxxxxxxxxxxxxxxx>]

Ian Lowe wrote:

> 350W isn't the maximum rating, it's a planning average, which includes
an
> element for time spent with the wind above the furl point of the
blades
> (when the generator basically shuts down to protect itself) as well as
> taking into account that power generation isn't linear - the turbine I
was
> looking at is capable of bursting to nearly 550W before it furls.


Does it also take into account the local weather pattern (ie how many
windy/windless days per year)? Or to put it another way, what sort of
average windspeed do you need to produce 350W?

btw, these folks have an interesting design of wind turbine that still
produces near maximum power output beyong the "furl point". One
of their
2.5kw models installed in Japan survived a direct "hit" from a
135mph
typhoon...

http://www.provenenergy.co.uk/index.php?option=com_content&task=view&id=12&Itemid=28

They're a little bit more substantial than the one in the beeb story
though :-) (But very quiet...)

Jim