Facts About Photovoltaic Systems
The term photovoltaic or PV refers to the type of station used to convert the sunlight into energy. Photovoltaic (PV) is the source of solar and renewable energy. It is considered a viable alternative source of energy for the replacement of burning fossil fuels.
- In 1839, French scientist Edmond Becquerel discovered that electricity is produced when two metal electrodes are placed in a liquid that promotes the conductivity of electricity. This is considered a breakthrough because it was the first photovoltaic experiment.
- From 1873 to 1876, three scientists discovered that an element called a selenium material could produce an electric charge only with the sun's light. Willoughby Smith discovered this property of selenium for the first time. William Grylls Adams and Richard Evans Day have shown that selenium can generate electricity when exposed to light. The amount of power, however, was extremely small.
- In 1887, Heinrich Hertz studied the photoelectric effect. He recorded the actual production and reception of electromagnetic waves (EM) when selenium is exposed to light.
- In 1905 Albert Einstein published his article on the theory of relativity. His article included a photoelectric effect study.
- In 1918, Polish scientist Jan Czochralski found a way to grow monocrystalline silicon.
- In 1954 there was a breakthrough in the history of the photovoltaic system. Daryl Chapin, Gerald Pearson and Calvin Fuller developed the first photovoltaic silicon cell (PV) on Bell Labs. Finally, there was a photovoltaic station that was capable of producing enough energy to be useful.
Solar Panel Uses
For years PV technology has satellites in space, calculators, scales and engine watches. Scientists began to learn the facts about photovoltaic solar panels.
The photovoltaic system requires several parts, including photovoltaic network, power generated, power wiring, overrun system, controller, batteries (if energy is stored) and the converter converts the current produced from DC to AC.
Photovoltaic systems can be configured to fully power the cottage using a battery system that stores energy for night use or the use of net metering. Net measurement is when a photovoltaic system is connected to an electrical network.
Types of Photovoltaic Cells used for Solar Panels
1.Amorphous Silicon
(thin film) this type of solar cell generates relatively low power, made up of non-crystalline materials. The application of thin-layer cells can be performed on flat, curved or even flexible surfaces, enabling a wide range of applications such as roofing materials, glass or linings. The current efficiency of thin film solar cells is about 10%, but it is improving.2.Monocrystal
(Monocrystalline) this type of solar cell is the most effective way to convert sunlight into electricity. Each cell typically produces 0.5 V and cells are typically produced with 36 or 72 cells producing 12-24 V. However, larger boards with up to 720 cells produced up to 240 volts. This type of cell is slightly fragile and needs to be mounted in a rigid frame.3.Multicrystalline
(polycrystalline) this type of plate consists of cells cut from several crystals that grow together. This kind of board cannot be damaged as easily as monocrystalline cells, but also less effective.
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