
When you're first starting out with a wind genertor I recommend DIY PVC wind generator blades. The reason being that they are quite easy to build and they can be built fairly cheaply as well.
When I was building my first wind generator I really didn't have the money for a nice set of blades, so I had to find a way to make some decent blades. After doing quite a bit of research I found that PVC is widely used to make decent quality wind generator blades.