As the year ends, I'm overcome with the "Best of 2007" lists - music, ideas, technology, people and so on. Browsing through core77's weblog, I noticed a post on wind turbines:
"...the Magenn Air Rotor System is a helium-filled wind turbine that floats 1,000 feet above the ground, getting it up and out of the way. The device is essentially a blimp wrapped in a steamboat's sternwheel and sends power back to the ground via its tether. Another benefit of being 1,000 feet up is that they are exposed to wind more constant than the serendipitous breezes us groundlings have access to."
While everyone seems to like the idea of green energy from the wind, no one seems to want to live near them. This could solve that.
On top of that, it's certainly possible to move these around. Imagine using these wind turbines to offset energy requirements for one time events, like the Olympics.