"John Rumm" wrote in message
...
Steve O'Hara-Smith wrote:

You're lucky to get 9m/s anywhere never mind 12 ! About 5-6m/s in much
of the South East from when I looked at it last week.
Which brings you power down to 5kW tops - so only a 140 year payback...

A 5kW average for 24 hours a day delivers about 44000 kWhr per year
- Call it £4000 per year of electricity. I make that about 9 years, long
but not too painful.

24 hrs a day, you would be lucky! I wonder what it costs to service a £35k
turbine?

Remember you also need to pay for grid capacity to cope with when there is
no (appropriate) wind.


--
Cheers,

John.
Maybe they glue silcon tiles like beta voltiacs all over the windmill to
make up for advertised capacity.
Or derate the wind capacity to real world numbers.....
Ad guys would not like to plug 5Kw power for 35K dollars ....but more real.
A fellow might go to home depot and get a 5kw generator and convert it to
biomass gasification in a third
world country instead.After all we need to think about the windmill
companies bottom line here,instead of our own.
Or take a look at ChunKing Water Turbine Works Ltd. item at
http://www.utilitywarehouse.com/vnd/...drogenset.html .
and wonder which one is going to have a faster payback in the investment
from electricity sold on the grid.



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