Solar energy is free, clean and safe. It is environmentally friendly and produces no waste or pollution. Using solar energy enables you to reduce not only your carbon footprint and promoting sustainability but also your energy bills. The whole process is simple and effective and entirely renewable - something which has to be good for both the environment and for future generations. Also solar thermal offers an affordable and practical renewable energy solution.An overview of types of day solar technologies: electrical & thermal and also the various types of solar collectors are presented. Typical applications of various solar thermal technologies are presented. It includes solar water heating comprising of thermo-siphon solar water heating and solar air heating used for space heating. The solar energy systems can be used in a large range of applications; therefore, they should be used whenever possible.
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