You will have to pay around five thousand dollars for the solar heating system that you choose. Think how fast you'll make that money back by all of your savings from a lowered power bill. Solar panels can be installed gradually.
If the cost of solar panels is prohibitive, you might consider buying one at a time. An energy audit can be requested from your electric company. This will assist you in figuring out how you use energy, so you could make some adjustments. This will allow you to use fewer solar panels.
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Never use an abrasive material to clean your solar panels. Doing so could cause them to become scratched and less useful than they were when they were installed. Your best bet is to have a gentle cleanser and cloth on hand to clean your panels so that you know that you have what you need when the time comes.