How many seas must the white dove sail before she sleeps in the sand?

How may ventures in small, rooftop wind must fail before we learn that this entire concept is doomed?

The answer is blowin’ in the wind.

Seriously, we’ve seen precisely zero of these essentially identical concepts succeed.  Maybe there’s a reason? Or three?

1) Lower power generation due to the formula for the area of a circle? (Doubling the radius generates four times the energy.)

2) Lower power generation due to the formula for the power generated by the velocity of the wind? (Doubling the wind velocity produces eight times the energy.)

3) The maintenance cost of dealing with thousands of tiny turbines that are constantly falling apart, because they must be made incredibly cheaply, makes the whole idea asinine.

Rhetorical Questions