alt.energy.renewable

On Sat, 08 Sep 2007 05:27:38 +0100, Eeyore
wrote:

>
>
>Reader wrote:
>
>> I'd like to add a wind turbine to supplement my home solar, as I get no sun
>> for several months in winter, but the best wind site is over 1000 feet away
>> (including 600-800 feet up mountain--steep straight down but gradual for
>> climbing up to). Is a wind turbine possible at this distance from a house?
>
>It's totally possible but the cable costs (the cable needs to be ten times
>'thicker' than for one installed 100 feet away for the same losses) and the cost
>of *protecting* the cable in such an environment may be prohibitive.
>
>Is there really not a suitable site that's nearer ?
>
>What power output are you considering ?
>
>Graham
>

Usin g transformers will be OK as long as the output frequency from
the windmill doesnt drop much below 50HZ, which is 1000 RPM for a
3 phase alternator.
If it drops below 50HZ, the transformer efficiency plummets.
Most windmills which have 3 phase outputs rectify the AC to DC.