This looks much more difficult to clean, think of all the bugs, birds and sediment that will stick to the INSIDE of that funnel structure. Cleaning the blades o

This looks much more difficult to clean, think of all the bugs, birds and sediment that will stick to the INSIDE of that funnel structure. Cleaning the blades of an ordinary wind generator seems much simpler. On the other hand, if this is as tall as they will get, it seems a lot safer to work on than the current behemoths.