All about solar energy

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What are solar batteries? Types and characteristics.

What is a solar battery?

Special equipment known as solar panels is used to generate heat and electricity from solar radiation. Sometimes they are also called solar panels. According to the principle of work, they are divided into:

  • photocells
  • thermal collectors

In the first type, photocells, light, and infrared rays are immediately converted into electricity. This is possible due to the semiconductor properties of pure silicon and some chemical compounds. When light hits a solar panel cell, a potential difference occurs. Due to the p-n junction, it creates a current. Small, with one no more than 0.6 V, regardless of its size. Individual cells connected in series make it possible to increase the output voltage. Therefore, they are called solar panels - several identical elements.

Varieties of solar panels

The industry produces three main types of solar panels:

1. monocrystalline
2. polycrystalline
3. thin-film

In the first two, pure silicon is used with alloying materials deposited on the outer and conductive base on the back sides. Thin-film solar cells can be made of amorphous silicon or other semiconductor materials, with additional sputtering and stream-sensitive elements. All types require a transparent outer layer of glass or polymers to protect against moisture and mechanical damage.

The use of different types of solar panels in everyday life and industry

Considering all the factors and requirements, single-crystal or thin-film solar panels are used to provide electricity to individual households. It is advisable to install polycrystalline solar panels in industrial solar power plants by sigora solar reviews. In space, polycrystalline solar panels are also used, but silicon's purity reaches 99.999%. They are produced using a complex technology of multi-layer application, which makes it possible to convert solar radiation of various frequencies into electricity. This proves an efficiency of up to an incredible 40%, which is impossible to obtain in terrestrial conditions.

It is profitable to produce electricity from light using flat solar panels in large power plants and households, even in temperate latitudes. The experience of Denmark and Germany has proved this. And in hot regions of the planet, solar collectors have more potential. They already work in California (USA), Mexico, Spain, Morocco, Egypt, and other southern countries because of the sunniest days and the highest average annual temperatures. In addition, most countries make it possible to sell surplus energy at special "green tariffs."

A very interesting and promising hybrid of solar panels has recently appeared - Smartflower. It looks like a huge sunflower. The size of the petals is up to 10 meters, and the servomotor returns them to the sun and adjusts the angle of inclination. And during strong winds, at night, or in the rain, the unit automatically folds the working surfaces and lowers them to a safe position. The declared power is 3.2 kW / h, from 3200 to 6400 kW can be obtained annually, depending on the climate. "Sunny Flower" is already in massive demand in Europe and the United States