Wind Trees

I watched this video http://tinyurl.com/oyhqra8 based on scientists that have found a way to make the wind tree. We had to write a summary about what would be good about that and what would be bad.

Here is my summary:

The Wind Trees will be better than windmills because they would be easier to fix cause the aren't that tall. It wouldn't be that good because it will cost heaps of money. And it will be hard to make millions of wind leaves. Also Manaatu wouldn't be known as the windmills. What would we be known as?