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.
Be realistic about the costs of having a solar energy system. If you're paying much less than other systems that are around the same size as yours, you may have poor equipment or installation work. Like with many things in life you get what you pay for. Quality installation work and equipment isn't going to be cheap. You may have substantial savings by going with a large company, but other companies may be cutting corners to keep costs down.
DIY Solar Panel System Wiring Diagram. This is an exact diagram of how I wired my complete solar panel system from the solar panels to the charge controllers …
Make sure to allow for adequate spacing around your solar panels. When overheated, these panels do not work effectively, and this can diminish the amount of energy they create for your family. Allowing for space between and around each panel helps to promote air flow and maximize both the functioning and lifespan of your panels.