A wind power generator is perfect if to install if you live in a relatively windy area and you're looking to get some additional power in a remote location. Costco is one store that carries a couple of functional wind generators by Whisper and Air X. These wind generators only feature two moving parts, so they are easy to maintain. Unfortunately you don't get too much power from one of these generators, however if you're looking to get some power to charge up your laptop, your phone or other smaller tasks, these structures would be perfect. These wind generators are constructed in cast aluminum and they are easy to install.
These wind generators are of course much smaller than industrial models which can generate a lot more electricity. It is pretty neat however that you can actually find these units, for residential use, even if they don't produce quite as much power as you would hope for. These Costco wind generators feature double sealed ball bearings as well as carbon fiber composite blades so they are well made. It definitely makes sense that you can fin these units at Costco: often they carry things which you can't find anywhere else, and which you frankly wouldn't expect to find there. Of course you can't go into any Costco and expect to find these wind generators, however you can probably order one from their website.
Either way, this is definitely a pretty cool idea if you're looking to go more green and you want alternative power sources. However, you should only really bother with something like this if you have enough property and if you live in a relatively windy area.
Whisper 100 900 Watt Wind Generator
"Great for cottages, 12V battery charging, remote power, back-up power & hobbyists. The Whisper can produce 100kWh per month for your batteries assuming 12MPH average wind speed. Carbon fiber composite blades ensure low wind noise. Cast aluminum frame. Side furling angle governor protects the turbine in high winds. Double sealed ball bearings. Easy installation."
Air X 400 Watt Wind Turbine
"The AirX Land Turbine is the world's #1 selling small wind turbine. This wind turbine can generate up to 400 watts of energy in ideal conditions. With only two moving parts and 13 pounds, this wind turbine is simple to install and easy to use. Use the power of the wind to operate appliances or electronics. Great for cottages, 12V battery charging, remote power, back-up power and hobbyists."
These wind generators can be found at costco.com