Want free electricity? Here's how. The magenn flying wind turbine is held up by helium generating 4Kw, enough to power your needs. Cost is about 10k, but it pays for itself in about 6 years depending on usage.
It's anchored by a tether that can extend up to 1,000 feet above ground. Generally, 400 feet is enough to catch the minimum 3 meters/sec wind speed needed to sustain a nice supply of electricity. The turbine spins in the air turning the generators. The rotation also stabilizes the turbine while energy is transfered down the tether which also acts as the transfer system.
If you're seriously interested, read more about it here and if you're REALLY interested, order one. :)
another picture after the jump
via treehugger
Very cool, but my fear would be it gets hit my lightening or ripped off the line in some bad assed storm. poof, no more power and 10k out the window. though, the idea of not having to rely on ontario hydro, and an already taxed out system, is a nice idea.