Group: alt.energy.renewable
From: Tater
Date: Sunday, September 16, 2007 5:48 PM
Subject: Re: price of cheap windplants

On Sep 16, 1:34 pm, wmbjkREM...@ wrote:
> On Sun, 16 Sep 2007 07:20:31 -0700, Tater wrote:
> >lately there has been a few smaller windplants on ebay, and I was
> >wondering if anyonw has some guideliens as to what prices to go by.
>
> >I am thinking of buying one, and would like to get a guideline as to
> >what to bid. anyone have a furmula in regards to $ per watt?
>
> A proper 1000W turbine/regulator costs about $2k. Add that much again
> for the usual tower and wiring. So about $4 per watt. Use a smaller
> model and the dollar per watt price generally gets higher. For
> example, the AirX costs about $600. Add about the same for the usual
> modest tower and wiring, and rate it honestly at perhaps 200W, which
> makes the cost about $6 per watt. You'll probably see much lower
> prices on Ebay since common low-end turbines wildly exaggerate their
> output specs. Some of them are just modified car alternators. Beware
> of sellers who brag that they use cheap bearings, that slip rings are
> "old fashioned", that more blades means more power, that a "high-tech"
> design produces more watts with a smaller rotor, or that their product
> is easily roof-mounted. An easy way to check if a seller is
> exaggerating is to compare the watts per square foot of swept area
> against a commercial product, which will be in the 15W per sq. ft.
> ballpark.
>
> Wayne

so a 59" diameter swept area, would yield 114 watts, which at $6 a
watt means $600?(ball park)

or did i do my math wrong?