Rooftop Wind Turbines Ready For Commercial Use

From Rooftop Wind Turbines Ready For Commercial Use : MetaEfficient:

I've been thinking a lot lately about appropriate technology and sustainable energy, and all the other aspects of a hypothetical 'urban ecovillage'. It turns out that I'm not the only person to be thinking along those lines and there's actually a lot of information relevant to the subject and already a lot of technology developed that would be suitable to the purpose. Of course, an urban ecovillage would be about more than appropriate tech. -- there are a lot of inter-related ecological and social issues that would have to be addressed and I'm going to be cataloging links to useful information on all those topics.

So here's the first post in what should be a long series. It's a link detailing an ingenious wind turbine design for mounting on urban structures.