In the 1960s, scientists have applied solar cells to space technology – communication satellite power supply. At the end of the 20th century, in the process of human self-reflection, the clean and direct energy form of photovoltaic power generation has become more and more showable. Not only in space applications, but also in many fields.
Such as: solar garden lights, solar power household systems, independent systems for village power supply, photovoltaic pumps (drinking water or irrigation), communication power supplies, cathodic protection for oil pipelines, power supply for optical cable communication pump stations, desalination systems, road signs in towns, high speed Highway road signs, etc. In the period before and after the turn of the century, photovoltaic power generation in advanced countries such as Europe and the United States was incorporated into urban power systems and power supply systems in natural villages in remote areas. The combination of solar cells and building systems has formed an industrialization trend.
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