how much power does a 400 watt wind turbine produce?
400 Watt HAWT With 3.6 m/s winds, the 400W turbine generates 50W. Assuming it runs 24/7/365, the turbine will generate 438 kwH per year. The national average electric rate in the US is $0.12/kWh, so the turbine saves the owner $52/year in electricity cost.