A one kilowatt wind turbine for your backyard

9 09 2007

At 30 feet tall and 2 feet wide, the propeller-less design is bird-safe, relatively quiet — it produces about 25 decibels of noise at five feet, roughly equivalent to the average noise of a residential neighborhood at night — and doesn’t take much breeze to get it spinning; it fires up at 8 mph. It costs $4000

read more | digg story

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