When most people think about solar energy, they think that it has to cost a lot of money, but it doesn't. If you want to use solar energy, but you have a limited budget, you can install solar powered lights in your yard. This is a good way to save energy without spending more than you can afford.
Before installing solar panels on your roof, check with your home owners association. Some associations have restrictions on what you are allowed to do to the outside of the property, and this might mean solar panels are not an option for you. It is better to have this information up front than to purchase the panels and be forced to remove them at a later time.
How to make a solar cell easily (the most simple way still affordable a general family). The technology is there for you.