Start your Home Energy Independence
Download this FREE GUIDE about:

In today’s economy, there are more reasons than ever to cut your energy bill. One of the most popular ways to do so is to invest in green, renewable energy to power all or part of your home. But, even if you don’t have the resources or the time to install a full Photovoltaic Solar Kit on your roof, there are dozens of other ways to cut your bills, save money, and generally be more kind to Mother Earth.

Enter your Name and Email for,
Automatic Download...

FREE Renewable Energy Guide

We respect your email privacy

Premium Home Energy DIY Guides

Buy Premium Guides and learn with the best professionals of the home energy business...


Click here to download

Homemade Wind Turbine Generator – Project Plans

In my research for a Homemade Wind Turbine Generator plans, i found this great well documented project from Kevim. Beside all the videos, where he show all requirements for the construction, he also describe the tools required and how the assembly is done. 

Please enjoy…

    Lately I've been spending a great deal of time working on ways to generate my own electricity. It isn't a necessity for me yet, but someday being electrically self-sufficient could really come in handy. My interest started a while back when I stumbled upon a how-to article on building wind generators from treadmill motors and PVC pipe. It sounded easy enough, so I decided to try and design my own. This particular design can be built for $100-$150 if you are thrifty and can regularly generate 50-250 watts (considerably cheaper than a solar panel of similar power output). Here's how I built it for those of you who are interested. Additionally, please check out my new frequently asked questions page for more information not discussed in detail here.



Before we get into the details of how to build one of these, here are some videos of it in action. Each one demonstrates the behavior of the generator in a different blade configuration.

Long, thin-bladed design (best overall)

Six-bladed design (low startup speed and lots of torque, but slowest)

Wide-bladed design (good startup speed, but also very slow)


How does my wind generator work?

Every wind generator, whether they produce enough energy to power a city or to power a small radio, works on these same basic principles…

Sounds pretty simple eh? Well, then how the heck do I build one? Read on…

Tools Required

Surprisingly, building a simple wind generator only requires very basic hand tools, and if you are desperate you won't necessarily need all of them. I used…

  • Jigsaw (or a hacksaw and a lot of determination)
  • Drill
  • (2) Drill Bits (1/2″, 7/32″)
  • Tape Measure
  • Crescent Wrench
  • Pipe Wrench
  • Protractor (to measure angles for the hub)
  • Sandpaper (various grits)


Parts Required

I wanted to be as minimal as possible with my design (I'm poor), so I took the already simple designs from around the web and made them even simpler. All of the parts are available at any local home improvement or hardware store, and the entire setup can be constructed in as little as a weekend. Many of the parts you may already have lying around, and lots of substitutions can be made (instead of 1″ steel pipe for the tower, you could use an antenna pole for instance). Here are the parts I used to build my generator…

  • 10″ x 14″ Steel Sheet
  • 10″ x 1/4″ Steel Nipple
  • 1-1/4″ Floor Flange
  • 36″ x 1″ Square Tubing
  • 1/2″ Bore Circular Sawblade (for hub)
  • 5/8″ x 1/2″ Arbor (to attach sawblade to motor shaft)
  • (2) Metal Straps
  • 8″ x 4″ PVC Pipe
  • 30″ x 8″ PVC Pipe (6″ pipe works well too)
  • A DC Permanent Magnet Motor (preferably Ametek 30V or 260V 5A treadmill motor)
  • (8) 1/4″ Bolts (with washers and nuts)
  • (2) 1/4″ Sheet Metal Screws
  • 10-40 Amp Diode (the bigger the better)


All of the above parts (with the exception of the motor), can be picked up in a single stop to any large hardware or home improvement store. For the motor, the most popular types are old tape drive motors manufactured by a company called Ametek. The key is to finding a motor that puts out the highest voltage per RPM. For instance, the Ametek I'm using is rated for 30V at 325 RPM, making it excellent as an electricity generator (for a nice output comparison of the Ametek motors commonly found on eBay and other sites see TLG Windpower). However, pretty much any permanent magnet motor with a good volt/RPM ratio will do. Keep in mind that if you want to generate useful electricity, you will need to produce at least 12V to charge deep cycle batteries or run an inverter. My setup can easily achieve 300-400 RPM in a pretty average wind (for Oklahoma). These instructions assume an Ametek motor with a 5/8″ shaft, but can easily be adapted to other motors (search ebay for “wind generator” and you will get a listing of lots of good motors).


Blade Construction

Arguably, the most important part of a wind generator are its blades. A lot of people like to carve their own blades out of wood or composite materials. However, for the rest of us, it's quite easy to make a good set of generator blades from common PVC pipe (and the efficiency isn't too bad either). A 2-3 foot section of either 6″ or 8″ PVC pipe will do the trick. Before we go any further, here are a few blade theory quickies…

  • The longer your blades are the more “swept area” you have to gather energy from and easier your blades will spin in low winds, but the slower your rotation speed will be
  • The tips of the blades always spin faster than the base, therefore one needs to take into account the “tip speed ratio” (TSR) when designing blades (there is a reason why old farm windmills will spin all year long at 40RPM)
  • The power that can be extracted from the wind increases by the cube of wind speed (something like P=k*v^3 k=constant of wind generator, v=wind velocity)
  • According to the Betz Limit, only about 59.3% of power can be extracted from the wind (so in reality P=.593*k*v^3, assuming k accounts for mechanical inefficiencies in the generator motor)
  • The higher you get the generator off of the ground, the more wind it will be exposed to (the general recommendation seems to be 25-50ft., but I've had decent results at just 12ft.)


Cutting the blades for this machine is very simple. You will need to cut your PVC pipe into 3 sections, two 150 degree sections and one 60 degree section (I've attempted to illustrate this VERY APPROXIMATELY in my favorite CAD program–and by CAD program I really mean MS Paint). The red lines are cut marks. You will want to use a good tape measure and possibly some construction paper or newspaper to mark everything before you cut. The 150 degree angles will result in wide blades that start up in lower wind speeds, however this will lower the shaft turning speeds. In practice, you will find that the optimum angle could be anywhere from 75-150 degrees. The best idea is start out with a wide set of blades that you can always thin out later if you need to. Remember, measure twice and cut once!
pvc blades


pvc blades
After the blades are cut, I like to go ahead and smooth out all of the edges. If you want to follow aerodynamic theory, you can round the angled (leading) edge and flatten the straight (trailing) edge, but in practice I haven't seen this make much difference with PVC blades. So, you should end up with something roughly like these…

pvc blades


Hub & Blade Assembly

The next obstacle is building a hub to attach the blades to. There are many types of ways that this can be done. I have used circular sawblades and scrap steel disks. I recommend the sawblade approach, as they are readily available and easy to drill through. You can pick up an arbor with a 5/8″ or 1/2″ shaft at any homestore that will attach directly to the sawblade. Using the 1/4″ drill bit, you will want to drill 3 sets of 2 holes 1″ apart which each set 120 degrees from the next (this is where the protractor comes in handy, unless of course you are a Euclidean purist in which case you probably don't need a protractor). Here is a picture to make it more clear…

hub drawing It's a pretty simple idea, but circular sawblades have worked out very well for me as hubs. Be sure and get some sort of rubber covering for the tooth edges and/or file down the edges as best you can, because the last thing you want is a hub of death flying at you if your generator decides to rip apart!


After our holes are cut out and we are confident of our safety procedures, we attach the blades to the hub (note that the hub pictured was cut from scrap steel, more pictures to come later)…



More at dev/thekevdog – My Homemade Wind Generator DIY Tutorial


Related posts:

If you are serious about saving money on your energy bill, then you might want to consider a paid guide. But don't worry because these guides pay for themselves with the money they help you save.

I have personally gone through and reviewed over 20 guides and here are the best of the best:

Earth4Energy review

Best Solar Power Guide: Earth 4 Energy

If you want to learn how to learn how to make the highest quality and professional looking solar panels that will last years longer than the competition then this solar power guide is for you. I've tried many of the other guides but this is the one that I continue going back to.

Click Here to Best Solar Power Guide

Note: View the video until the end to understand the advantages of the DIY guide.

GreenDIYenergy review

Best Wind Power Guide: Green DIY Energy

If you are looking for step by step instructions for making the highest quality yet inexpensive homemade wind turbines then this wind power guide is for you. Plus this guide also comes with my second favorite solar power guide for free. So if you to know how to make a wind turbine that will last for decades then this check this one out.

Click Here to Best Wind Power Guide

nikolateslasecret review

Best Free Energy Guide: Tesla Secret

If you pay for electricity, you've been hit hard by high energy prices. And, if you're like most people, you're thinking... there's got to be a better way. A better way to heat your home; a better way to use electricity without spending a fortune; a better way to get save on your electricity bill. This guide is a digital book that shows you how to create a Tesla Free Energy Device which generates free electricity.

Click Here to Best Free Energy Guide

Power4Home review

Best All Inclusive: Green Eco Club

If you want all the best DIY energy guides available to save some serious money then this is it. With a new guide every single month and tons of expert advice and help you will never have a lack of projects to do. If you want only the best and for the best price then Green Eco Club is for you. Buy premium products.

Click Here to: Green Eco Club