A Sirling Solar Dish is type of concentrating solar collector that optically reflects and focuses the suns incident solar energy onto a small receiving area using mirrors or lenses. By concentrating the sunlight to a single spot, the intensity of the receiving solar energy is magnified many times over with each mirror or lens acting as a single sun shining directly at the same focal point on the dish. The concentration factor, also known as the "number of suns", of a solar dish collector can be greater than 1,000 suns reaching temperatures at the focal point receiver (called the "target") approaching several hundred or even several thousand degrees Celsius depending upon the size of dish.
The heat engine at the focal point of the dish, is driven by the solar thermal energy converting it into rotational mechanical output by the cyclic compression of the engine's working gas, which is usually helium or hydrogen. The mechanical power that is produced is then used to drive an electrical generator or alternator producing a significant amount of AC electrical power. These types of solar heat engines are commonly called Stirling Engines after its inventor Robert Stirling in the year 1817.
Follow this link to learn more about Stirling Solar Dish Collectors
or solar concentrating dishes.