[dwc]

> I just read this stuff on Wikipedia.

Same here. I've also read up on a lot of different designs, and have been paying attention for a while now.

There are a couple of points that have occurred to me about wind power. 1) Most supposedly exciting, new designs are minor variations on older designs with minor improvements in efficiency. 2) Some esoteric design are actually good for something, but not for massive wind farms. Think wind turbine as art in a public park, etc. 3) Media love esoteric designs and want to hype it as the next thing, even though they are nowhere near the efficiency of a big 3-blade on a tall pole design.