Group: alt.energy.homepower
From: "Brian Funk"
Date: Friday, October 05, 2007 4:53 PM
Subject: Re: Noise of sm. wind generators?


wrote in message
news:kbkcg3pihnsboeg8k9cv1q7lir759lmcgo@ ...
> On Thu, 4 Oct 2007 08:51:22 -0700, "Brian Funk"
> wrote:
>
> I mounted an Air 403 on a roof scissor-truss roof. Welded up a mount
> that transmitted the forces to three trusses, and spread the load even
> further with extra wood bracing. All the mounting was internal with
> only a stub protruding through the roof. The turbine mast bolted into
> the stub. There were two problems - vibration from the turbine drummed
> the roof deck and echoed, and the noise was too close to the living
> space. I considered putting more work into the mount, but my intention
> had been to use three or four turbines, so it became obvious that it
> would be simpler and better to use a tower instead, particularly since
> a single 1000W turbine was going to produce more energy than four 400W
> Airs. The AirX is reported to be considerably quieter, but IMO it's
> unlikely that a successful roof mount would be less work than a
> light-weight tower.

Thanks for the links. Your set up is a lot more involved than I'd be willing
to do. More array is a lot simpler, especially considering that my cabin is
fully constructed. I'd hate to have to go back inside the structure and
re-build.

brian