Solar thermal heating is known as one of the energy source of human daily life. The sun is needed by not only human, but also the entire living on the earth. There are many things that human don’t realize about the solar energy. These things will make you thank the God for completing this universe with sun. Researchers said that solar thermal heating is the main source of energy that makes we are alive today. This energy is a kind of totally free along with few other energy sources. The light of the sun speeds across the distance between earth and sun, approximately 90 million miles away, only in 10 minutes.
Recently, the largest power plant that uses the sun thermal heating as its energy source is located in California. This power plant covers a thousand acres of Mojave deserts. Like no other energy source, sun’s energy is clean; there is no pollution when the energy is being obtained. The only pollution is the resulted in the process of solar panel installation. The investment of solar panel installation may cost a fortune. However, the sun energy is completely free; the payback may take several years and after you can save the money of energy for the rest of your life.