As a big fan of wind power I am delighted to see that the HIgh Weald Joint Advisory Board have been looking into this kind of thing....· http://www.highweald.org/text.asp?PageId=175
I also find it reassuring that someone somewhere at a slightly higher level than our village is making the connection between renewables generation targets and the practicalities of actually getting there. Whatever the outcome at least the research is starting to come out and the debate will hopefully follow.