An Ultra-quiet wind turbine that delivers up to 900 Watts of power is claimed to be Ideal for cabins, it features 12V battery charging, remote power and backup power. Adjusts from 12 to 48V DC and features overspeed protection. The turbine is available from Amazon for $2,300.00. A similar model, as described in TreeHugger, a 12 Volt, 400 Watt Wind Generator, weighing 17 pounds is also available from Amazon, for $799.99, from Northern Tool for $700.00 plus shipping. Maybe two of the smaller models for $1400, of almost the same capacity, would be the better deal. Northern Tool also has the best description of both models.