If you are wanting to power your home on a renewable energy source then in most cases wind power will be the cheapest option to setup.
Of course, the most important proviso here is that you have a consisent flow of wind across your site! If you don't, read below to learn more about solar power.
So you've got a consistent flow of wind? Excellent. Wind power is a remarkably easy electricity generation source, as witnessed by the number of large power companies now using it to generate their electricity.
With the Earth4Energy guide, setting up your system can be broken down into the following steps :
1. Site selection
2. Buying the necessary pieces (Earth 4 Energy tells you exactly what you need)
3. Constructing the propeller / generator / tower.
4. Erecting the tower.
5. Wiring it up to your home.
Easy! Now to be clear, the last step has several options, you can use the electricity to power items in your garage, you can use it to power items in your home, or you can even wire it up to your mains supply so that your electricity bills are reduced as your house begins to run on your own electricty. (Note - for safety reasons an electrician is required for any mains work).
So that's a little more about setting up your wind power system. Visit the special Earth4Energy wind power page here.