Photovoltaic materials and devices convert sun energy into electricity. A single PV device is called a cell. Individual photovoltaic cells are usually small and typically produce around 1 or 2 watts of power. These batteries are made of different semiconductor materials and are usually less than the thickness of four hairs. To withstand years of outdoor exposure, the battery is sandwiched between protective materials combining glass and/or plastic.

To increase the power output of photovoltaic cells, they are connected together in chains to form larger units called modules or panels. Modules can be used individually, or multiple modules can be connected to form an array. One or more arrays are then connected to the grid as part of a complete photovoltaic system. Thanks to this modular structure, photovoltaic systems can be built to meet almost any size electrical demand.

PV modules and arrays are only part of the PV system. The system also includes mounting structures to point the panels at the sun, and components to convert the direct current (DC) generated by the modules to alternating current (AC), which is used to power all the appliances in your home.

Photovoltaic power generation is a kind of solar power generation technology, which is based on the principle of photovoltaic effect to generate electrical energy, and uses solar cells to directly convert sunlight energy into electrical energy. Regardless of whether it is used independently or connected to the grid for power generation, the photovoltaic power generation system is mainly composed of three parts: solar panels (components), controllers and inverters. They are mainly composed of electronic components and do not involve mechanical parts. Therefore, photovoltaic power generation equipment Extremely refined, reliable, stable, long life, easy to install and maintain. Theoretically speaking, photovoltaic power generation technology can be used in any occasion that needs power, ranging from spacecraft to household power, large megawatt power stations, and small toys. Photovoltaic power can be everywhere. At present, photovoltaic power generation products are mainly used in three aspects: one is to provide power for places without electricity, mainly to provide electricity for the life and production of residents in areas without electricity, as well as microwave relay power, etc. In addition, it also includes some mobile power and backup Power supply; the second is solar energy daily electronic products, such as various solar chargers, solar street lights and various lamps of solar lawn factories, etc.

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