Get the records from your energy company on how much energy you have used in the last five years. You can then use this information to figure out exactly how much power you will need solar energy to provide for you home. Having the past five years is important so that you can see that some years you will need more energy than others.
There is nothing that drives up your energy bills faster than children. Between computers, charging cell phones and televisions being on all the time, it can be frustrating as a parent to keep reminding your kids to conserve the electricity. For this reason, switching to solar is a very family friendly option because it reduces your electricity bill tremendously.
Before installing any form of solar panels, be familiar with local rules and regulations. There are lots of places where some permits are required. The last thing you want is to have the system put it and then you are forced to remove it later.
If solar panels are too expensive for you, think about renting them. Leasing is not as expensive as buying, and you can realize your savings sooner, like around a few weeks.