When we are talking about how to build wind turbine blades, this picture might not be relevant. We have to start with something a bit smaller.
photo credit: sbwoodside
What materials are suitable for the blades?
A PVC pipe is an easy and affordable way to go. You can build these blades yourself but the downside is the efficiency.
The best and most effective blades you get from plastic composite carbon fiber. These are more expensive but in the long run, what you should go for. With this kind of blades you can often get lifetime guarantees as the usually never crack. As the blades are pre-built you save some time in the building phase.
Many still prefer to make the turbine blades from wood. The reasons are that it’s easy to work with and quite inexpensive. The strength to weight ratio is great and if maintained, they can last for a very long time. The Cedar tree is one favorite for homemade wind turbine blades but there are also blades made from Pine and Spruce.
