The economy is down, so what's one way you can save money? Build a vertical axis wind turbine! This eco-friendly four-part video tutorial will show you just how to make one so you can save money. These are detailed steps for making the vertical axis wind turbine. The blades can be easily interchanged offering different shapes and materials to experiment with. This design can create turbines up to 90 inches in diameter and up to 15 feet tall.