Used Wind Turbines: This is a very small investment in comparison to the amount of money you will be saving. The materials are all very easy to come by; you can get them at any hardware store. Some of the materials you may be able to even get for free. A good instruction plan will show you how to do this. You can also setup what is known as a ‘dump load’, so that when the batteries are full the excess electricity being generated is used to heat hot water or provide some kind of lighting — basically, you are ensuring that none of the generated electricity gets wasted. The last step is ensuring that we can make use of the electricity we have stored. If you live in a windy area and your electricity consumption is less, you can even generate surplus electricity from your wind power generators installed in your backyard. Electricity companies are ready to purchase this surplus electricity, as this is far better than the electricity produced from non-renewable sources of energy such as coal, diesel and gas. You can build your own wind power generators and you will require a few items such as blades, a tower, a battery, a DC motor and a tail. DC motor should be carefully selected as it is the costliest among all other items and most importantly you should go for quality blades. Furthermore, there is no guarantee the information you obtained is reliable and up-to-date. A better approach is to purchase a do-it-yourself guide that will take you through the entire project step-by-step