how to build a water wheel
This is exactly the same principle. Usually, for a water wheel electric generator you need at least 3 feet of fall and at least 20 gallons per minute of flow. The more fall and flow you have, the more potential power you can generate.You can measure flow by building a weir in the creek and measuring how fast it will fill up a 5 gallon bucket.or the overshot wheel the optimal diameter of the wheel is the largest possible (the drop) and the optimal rotational speed of is approximately: 21/ âD where D is the diameter of the wheel (meters). You can build it from any material but the lighter, the better. Most water wheels are built from wood.