Solar cell comes from a layer of silicon wafer, and its thickness is only about three times that of ordinary hair.

Turning the silicon crystal layer into a photovoltaic cell requires a special preparation process. The silicon crystal layer needs to be heated to 1000 degrees Celsius, and then a layer of metal sheet is placed on the back of the layer, while covering the solar cell with a layer of metal with holes Net and let this face rush towards the sun.

When 72Cell solar panels are finished, they will be fixed on a layer of glass to make solar panels. Generally speaking, the solar power system on the roof has 10-50 pieces of 500 watt solar panels, and the solar generators in the countryside have installed millions of PV panels.

Every silicon atom contains electrons of extremely small size and light mass, and these electrons carry a weak charge. When sunlight falls on the solar panel, it will hit one of the electrons and move it out of the electron orbit. These hit electrons can move freely, but the special structure of the battery allows the electrons to only move in a direction toward the sun.

Therefore, when sunlight falls on a monocrystalline solar panel, many electrons will deviate from their orbits and become free electrons. Because of the characteristics of PV cells, electrons can only move upwards, thereby generating current that can drive household appliances.

If the sunlight falling on photovoltaic panels is stronger, more electrons will be knocked out of their orbits, and the generated current will be greater. If the weather is not clear, the number of electrons hit will be reduced, and the current generated will be reduced by 75% or more. At night, solar power panels do not generate any electricity, and the power supply at this time is completely dependent on solar batteries or other power sources.