[SunkenCiv]

http://www.halfbakery.com/idea/Flying_20wind_20generators

"According to [bing]'s link, thousands of the devices would fly 4.5km in the air. That means that to eliminate the chances of air collision, aircraft (including other flying generators) must stay further than 4.5km away. Assuming each full-sized unit would have a peak capacity of half a kW and operated at 85% load factor (Prof Mills: "flies six days out of seven") and occupied a hexagonal exclusion zone of 4.5km side-side, then the energy density of the power station = 500W / 4.5km 3¥sqrt(3)/2 = only 42 Watts per square km!!" -- FloridaManatee, May 27 2004

[GoldCountryRedneck]

...to eliminate the chances of air collision, aircraft... must stay further than 4.5km away."

Ya think??? Aircraft have enough problems currently with power lines and radio towers, even when they are well charted.

I think good solid nuclear reactors, on the ground, would solve a LOT of our energy problems.