The invention can be integrated to all existing Concentrated Solar Power (CSP) systems. It is inspired by the greenhouse effect where a group of atmospheric gases, called Greenhouse Gases (GHGs) allow sunlight to pass through to the surface of a planet but traps some of the heat (Infrared) escaping from the planet's surface within its atmosphere. However, there are certain GHGs that can trap several thousands of times more heat than an equivalent mass of carbon dioxide. In a CSP system, a massive amount of energy is wasted at the receiver and at temperatures such as those of a CSP receiver, the primary mode of energy wastage is through Infrared radiation. This invention surrounds the central receiver (2) of a CSP system with a powerful GHG, held in place by a strong transparent casing (1) around the central receiver, which is sealed from the outside environment. This creates a powerful artificial greenhouse effect around the receiver that lets sunlight in, but traps a portion of the escaping infrared radiation (otherwise wasted energy).
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