The wind is free , but turbines cost a lot , so here is how to build a ten foot diameter wind turbine on the cheap.
Step 1: Your Tower Needs an Anchor
You don't want your tower to fall over, so you will need an anchor. I used over a thousand pounds of concrete that I set five feet deep in the ground.
I started by digging a five foot deep hole.
Step 2: Your Turbine Needs Wind
Turbines need to be up as high as you can get them, so to get as high as you can you will need a tower.
I made mine with 6x6's. It's 20 feet tall.
Step 3: Turning on a Dime, or a Bicycle Down Tube
Your turbine will need to be able to turn into the wind. Bicycle parts can take a lot of abuse, so I used them for all my moving parts. Here is how I used a front wheel fork down tube and bearing housing for my turbine's pivot.
Step 4: Electric Boogaloo
I've been looking into a generator for some time. I've read in a few places that this is a really great motor to use and I found it on my first try digging at the dump : )
I'd like to wrap my own coils at some point, but for right now this will have to do.
Step 5: The Cutting Edge of Power
I've seen many websites that show how to cut blades out of pipe, but I had never seen anyone use thin wall 6 inch pvc used. My blades are 4 feet and ten inches long and they are cut to hold a 45 degree pitch from the hub all the way to the tip.
I'm very happy with how they turned out : )