The utilization of wind energy for a green clean energy using wind turbines continue to develop better with a variety of turbine design. Joby Energy is testing their prototype of airborne wind turbines that expected to generate up to 800 terawatts.
Alternative Energy Ecogreen <http://alternativeenergyecogreen.blogspot.com/2010/07/kite-wind-turbine\ s-as-reliable-wind.html>
