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Home or Farm Scale Wind Turbines. Wind turbines under 100 kilowatts cost roughly $3,000 to $8,000 per kilowatt of capacity. A 10 kilowatt machine (the size needed to power a large home) might have an installed cost of $50,000-$80,000 (or more).
In 2007, average cost per kilowatt hour of electricity generated by residential wind energy systems was between 10â11Â¢ per kilowatt hour. In 2007, average cost per kilowatt hour of electricity generated by utility-scale wind turbines was 4â7Â¢ per kilowatt hour. One 10 kilowatt wind turbine system, operating at a site where the average wind speed is at least 12 mph, can generate around 10,000 kilowatts per year.