Solar Energy

 What is Solar energy?

Solar energy emits heat, chemicals, or electricity. The total amount of solar energy that will be captured on Earth exceeds that of the world's projected electricity, in particular. When used properly, this highly dispersed resource has the potential to meet future energy needs. In the 21st century, solar energy is expected to oppose limited fossil fuels such as coal, oil, and natural gas, as sources of renewable energy, due to its non-polluting, non-polluting nature.  

The sun is a very powerful source of energy and sunlight is the most important source.
This is mainly due to the scattering of large rays of light coming from the sun. The low-level additional loss is due to the Earth's atmosphere and clouds, which absorb or scatter up to 54 percent of incoming sunlight. Approximately 50 percent of the sun’s rays on Earth include visible light, 50%, infrared rays, 45%, ultraviolet rays, and other forms of electromagnetic radiation.

Advantages of Solar Energy	Disadvantages of Solar Energy

Thermal energy

The most common devices used to capture solar energy and convert it into thermal energy are fleet collectors. Because the intensity of the solar radiation on the Earth's surface is very low, it is important to have plenty of room for these collectors. Although in two parts of the world's temperate regions, for example, collectors should have an area of ​​40 square meters to 430 square feet to collect enough energy to meet people's energy requirements.

The most commonly used plate is a black metal plate covered with one or two glass plates that are heated in the sun. They form a conductive liquid that passes around the edge of the wafer. Heat can be used directly or transferred to other media.  

Electricity generation

Sunlight can be converted directly into electricity by solar cells (solar cells). In such cells, when light strikes a metal and a semiconductor (similar to silicon) or a junction between two different semiconductors, a small voltage is created.  Electricity generated by a single solar cell is usually bilateral. However, by connecting more individual cells, a large solar panel, solar power plant, or home can generate hundreds or thousands of kilowatts of electricity. nowadays cells have an energy efficiency of 15-20 percent, and the low intensity of solar rays requires such large and expensive cells to make intermediate energy.