How to estimate the energy of wind turbine?
how do i estimate the annual energy output of a 5kw wind turbine in an area which has a average wind speed of 7.4m/s at 10m above ground level, and the rated wind speed of the turbine is 10m/s. there is no buildins around to interfear with the wind and the hub of turbine is 12m above ground level also how do i find out the prevailing wind direction in my area