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Old 07-23-2014, 08:34 PM   #1
Little Shack's Avatar
Join Date: May 2014
Location: Princeton
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RV Wind Generator

Has anyone had any experience with one of these? We have solar panels both for the TT and for our cabin, but this sounds interesting.

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Old 07-23-2014, 09:39 PM   #2
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I saw a couple when I was down in Quartzsite. Looked interesting, so I checked around for places to buy one. Found that Home Depot carries them as a ship to store/home item.

Didn't pull the trigger and buy one, though. Maybe someday.

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Old 07-23-2014, 09:50 PM   #3
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Have you monitored the average wind speed for your cabin? The website says 8-30mph, and 250 watts in "IDEAL CONDITIONS". I see a lot of these on sail boats on the gulf, by my house. The only place where I could have used one of these was in OK, where the wind never dropped below 20MPH while dry-camping for a week. Where we are now in the Blue Ridge mountains of GA, there is a windmill here and I saw it turning only once in the last month, on the other hand the stream driven water-wheel has been turning 24/7. I am trying to get them to hook up a small generator to it to power LED lights on there sign.
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Old 07-23-2014, 09:51 PM   #4
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I'm a "certified" wind installer for residential wind power.
Know how many installs I've done? Zero. Why? Because I refuse to install it over solar in most residential circumstances.

I read their FAQ and have some concerns:

Can my battery get overcharged? Voltage does not overcharge. Too many amps coming in for too long will overcharge a battery. This is simply not possible with a micro turbine such as the Windwalker 250. Think of the Windwalker generator as a “trickle charger” for your battery or battery bank.
Yet this is a device that can put down 30 volts * 8 amps = 240 watts. Assuming they step down the voltage, 8 amps is no trickle charge. No indication of a charge regulator. With that kind of output, it could easily overcharge if you had sustained high winds.

What if I want to check the generator’s output?
First disconnect any load (such as the battery). Then connect the +/- probes of a digital multimeter set to DC voltage directly to the output wires of the turbine. While it is spinning, you will get an accurate voltage reading.
This won't tell you how many watts or amps it's producing. It's horrible way to measure.

No information on what wind speeds are required for what output.

Also these devices are "wild" alternating current. They have to be rectified to DC. They're mechanical, so they are much more likely to fail than a 240 watt solar panel.... Technically, it'd generate power in a high wind condition where it's cloudy and solar isn't available, but I'm not sure I'd go for it.

My advice - spend the money on a similarly rated solar panel.. It'll cost less, produce more power reliably (subject to sunlight) and be a lot less maintenance hassle.
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