Dec
26
2009
6

How To Make Wind Generator Blades

Does the design of a wind generator blade actually effect performance, efficiency and the amount of electricity you can generate from your available wind speeds?

Absolutely! But There’s More To Consider…


Wind generator blades don’t have to be difficult to make or expensive, but the most important consideration is your individual electrical needs and the wind you have available.

Choosing The Right Design For Your Blades

Do you have high wind speeds or low wind speeds? If you’re blessed with high wind speeds, you can generate a significant amount of electricity from a three blade design. If you have lower wind speeds you would want to use more blades. A great example can be viewed by the two residential wind generator designs from Skystream and Honeywell.

skystream wind generator blades

Skystream


Honeywell's multi blade PMG design

Honeywell

    Skystream’s three blade design

is optimized for wind speeds at 20 MPH, while

    Honeywell’s 20 blade design

is optimized for 8 MPH winds. Although Honewell’s wind generator generates half the watts as the Skystream, it can generate electricity in low wind speeds where Skystream’s design would just sit idle.

Increase The Efficiency of Your Blades With Their Shape

Creating a foil with a slight twist is the optimal shape, however if you’ve ever created your own blades before, you’ll quickly know it may not be the most practical. When considering the time it takes to make the blades and that you could be without power until you make a replacement set… from an unexpected storm… Practical, inexpensive and quick to make, become more important than tweaking out a few more watts with design.

Choose an Easy to Work and Inexpensive Material

Regardless a foil design is essential and can be easily and quickly done with inexpensive materials. I’ve used many different materials before I started using spruce. Spruce is inexpensive and easy to shape. Just look for boards that don’t have knots and are quarter sawn. The closer the board was cut from the center of the tree the stronger it will be. Also choose dry lumber as it will be less likely to cup or curl. There’s nothing more frustrating than erecting your wind generator and later finding that one of your blades has cupped. You’ll know by the tell tale dangling in really low winds, or unusually high start speeds. Just remember that the center cut denser wood weighs more and is harder to weather seal.

Here’s How to Shape The Foil of Your Blades

If your looking for an illustrated guide that’s more informative, than the information below, than check out a review of Les’s guide How To Make Wind Generator Blades He answered some questions I had and helped me increase my electrical output.

Increase Your Electrical Output With Great Blade Designs- Click Here
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