Solar systems capture and collect the thermal energy from the sun transferring it to water, which is collected in a special water tank. They are becoming more and more popular and more widely used in many households. With their help you will save significant amounts of the electricity bills, you will have constantly hot water and help protect the environment. "Thinking green" is not just a fashion propagandized by the media. It is a necessity and does not end with the separation of the waste or turning off the power at home for one hour in only one day of the year.