My area has 1-2mph winds most every day.
Seems all the stuff I see hawked have a minimum start of 6mph.
I see that those units have narrow blades and would think wider and more blades would allow enough energy to be produced at lower wind speeds.
But....Im thinkin this increases the mass of the wind mill and the supporting structure enough to make it quite expensive .
What are your thoughts on this? (other than it will be very expensive option for getting water.)