This type of cell is characterized by flexibility and lightness

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Production of the first thin-film silicon solar panels. 1977 : Establishment of the National Renewable Energy Laboratory (NREL) in the United States. 1980 : Significant decrease in the cost of solar panels. 1990 : The solar energy sector began to grow rapidly. 2000 : Solar installations continue to grow around the world. 2010 : Solar energy becomes one of the world's fastest growing and affordable energy sources. 2020 : Solar energy has become a key player in the transition to a clean energy future.

Solar Photovoltaic Technology Solar cells are called photovoltaic cells, and they Phone Number Data convert light into electricity. They have several types: A) Silicon Solar Cells Most solar cells are made of silicon. These cells are characterized by their reasonable prices and good efficiency. Efficiency means the rate at which sunlight is converted into electricity. For example, if a cell is 30% efficient, this means that 30% of the sunlight falling on the cell is converted into electricity. . b) Thin -Film Solar Cells It is a well-known technology, and it is known by this name because its solar cells are made of a thin layer of semiconductor materials such as cadmium telluride. The layer is several micrometres thick, and a meter contains one million micrometres.



Solar cells from the third and fifth group ( III-V Solar Cells ). These cells are composed of elements in the third group of the periodic table of elements, such as gallium and indium, and from elements in the fifth group of the periodic table, such as antimony and arsenic. The cost of manufacturing this type of cell is higher than other types, but it is characterized by its high efficiency, so these cells are used in satellites and drones. D) Next-Generation Solar Cells Researchers are developing these cells, which are made of either organic materials, quantum dots, or perovskite (a metallic material that has photoelectric properties). These cells are characterized by their low cost and ease of manufacture, and they are still under research, development and testing. 2. Concentrating Solar-Thermal Power Technology.