How Much Does It Cost To Put Up A Wind Power-generator? How Much Energy Do They Provide?

Here is a good page talking about the cost and power produced. It looks like they are around $12,000. Power varies depending on wind.

i saw similar fans that did that same principle underwater in some river on Sundance’s The Green, it was Cool!!!! i changed all our light bulbs & saved HALF on my next month’s light bill!!!!

Installed, a complete grid-interconnected, 10-kW wind turbine costs between $40,000 and $50,000 and will produce between 800 and 2,000 kWh per month (depending on the wind resource).
As a rule of thumb, wind power systems tend to be cost effective in areas in which the average wind speed is 10 mph or greater and utility costs are more than $0.10 per kWh.