If you are in to ‘green’ things this might be a project for you. No doubt you’ve heard in the news recently about wind farms that produce renewable energy. If you have ever wanted to build your own, here’s your chance. The types of turbines here are different from the ones that you have seen on the news because these are vertical axis wind turbines (VAWTs).
First the big one: It’s a Savonius wind turbine electrical generator [via Instructables.com]. I haven’t build this myself, but I know from experience with building wind turbines of the same principal but of smaller size that these do in fact work.
If that one is too much work for you, there are two smaller ones you can try: the Pringles Wind Turbine and the Cardboard Savonius Wind Turbine.
