This vertical axis wind turbine (VAWT) uses five 3” PVC pipes cut in half for blades rotating on three kids bicycle wheels to spin an Ametek 38 volt motor or a wind blue alternator.The whole ...

Over the past decade, wind turbine use has increased more than 25 percent per year. Still, it only provides a small fraction of the world's energy. Most wind energy comes from turbines that can be ...