how can build my own windmill electric generator?
mill blades length, angle, speed, hight,
The starting point is deciding how much power you need. The second thing you need to do is obtain average wind speed data for your area.
Those two things will determine much of the remainder of your design. Another factor to consider is how uniform the wind tends to be. A larger wind generator with a large sweep will be capable of providing a greater overall output, but can’t react quickly to changing wind speed and direction. Gusting winds can tear up a large machine whereas a smaller one can react more quickly to the changes.
