Always use non abrasive cleansers on your solar panels. An abrasive cleaner can scratch the surface of the panel and cause permanent damage and affect how well the solar panel works. There are commercial cleaning solutions to use or you can use a pool skimmer with a very soft cloth on it.
Solar heating systems use the power from the sun to help heat your home in the Winter. This type of system is a great option for locations that do not get especially cold. Using this type of system in conjunction with your regular heating system can save you up to 50 percent of your energy costs.
Once you have solar energy panels installed on your home, make sure that you keep them clean. Many people do not realize a cleaner panel will attract more of the sun's energy. Depending on the area you live in, you should wash your panels every two to four weeks or so.