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A Solar Thermal Collector: is a device designed to receive solar radiation and convert it into thermal energy. Normally, a solar thermal collector includes a frame, glazing, and an absorber, together with the appropriate insulation. The heat collected by the solar thermal collector may be used immediately or stored for later use. Solar thermal water heaters in 2010 equal the energy equivalent of the electrical capacity of 40 large nuclear power plants. The energy production of solar thermal energy is 30 times that of photoelectric solar energy.