Solar is the future of power generation

See what is the mechanism to start solar power generation plant.

Sunlight is what shines brightly on the earth where
everyone lives, grows plants, helps animals become healthy, and keeps people at a comfortable temperature. In addition to that, sunlight is attracting attention as a new energy that creates electricity that is indispensable for everyday life. This time, let's learn about the mechanism that produces electricity from sunlight and the history of research.


Why does sunlight become energy?


The sun is about 150 million kilometers away from the earth where everyone lives. How do you make electricity from the sun so far away? Have you ever seen large buildings such as factories, roofs of houses, mountains, seaside, etc. where there are a lot of dark boards? That device is a solar panel that converts sunlight into electricity.
Furthermore, if you look closely at the solar panel, you can see that it is divided into small plates that are “solar cells”. When sunlight hits a solar cell, a change occurs in the solar cell and electricity can be generated (generated). Solar cells can produce electricity for as long as they are exposed to sunlight.
Let's take a closer look at the detailed mechanism later.


When did the research on solar power generation start?


Photovoltaic power generation, which produces electricity from sunlight, is very amazing, but in fact, research has started about 180 years ago. In 1839, a French scholar named Alexandre Edmon Becquerel found that electricity was generated when light was applied to a metal plate. I invented what would become. In Japan, the first solar cell was made in 1955, and three years later, in 1958, it was put into practical use as a solar power generation system. Since then, there has been a lot of research on solar power generation around the world since the 1970s, and solar power generation is now being carried out in various places around the world.


How do you make electricity from sunlight?

Let's take a look at the mechanism of solar power generation that produces electricity from sunlight.
Each solar cell in the solar panel is made up of two types of semiconductors: n-type semiconductors and p-type semiconductors. The semiconductors are connected by “conductors” through which electricity flows.
When sunlight hits the solar panel, “-(minus) electrons” gather in the n-type semiconductor of the solar cell and “+ (plus) electrons” gather in the p-type semiconductor. Then, the-electron moves to the + electron through the conductor that connects the two semiconductors. Taking advantage of this flow of electrons to extract electricity is the mechanism of solar power generation.
It might be a little difficult, but let's take a closer look at the diagram and learn how solar power works.

Solar cells that produce electricity from sunlight have the name "battery", but they cannot store electricity in themselves, so the electricity produced by solar cells can be used as it is or stored There are many ways to use and use the battery when needed.


 Solar power ,the future of power generation


From now on, solar power generation using solar panels is expected to be used a lot in the world. The reasons why solar power generation will be used more than ever are the reasons for solving environmental problems such as “global warming” and the limitations of oil, coal, gas, etc. It is because it helps to use the resources that have been saved.

If you burn oil, coal, gas, etc., a lot of greenhouse gases such as carbon dioxide will come out, leading to global warming as the temperature of the earth rises. Electricity used all over the world is mainly produced by “thermal power plants” that produce electricity by burning oil, coal and gas. Solar power generation using sunlight allows you to create electricity without burning oil, coal, gas, etc., so you can protect the environment. And unlike limited resources such as oil, coal and gas, solar can be used all the time as long as the sun is there. By making electricity with sunlight that is kind to the earth and can be used as much as possible, you can solve various problems that people and countries around the world have.

However, in order to use more solar power from now on, there are still some things to solve. For example, on a cloudy day or a rainy day, the sunlight is weak, so you can't make much electricity. If the solar panels are covered with snow or a dark night, you will not be able to generate electricity at all. Also, the amount of electricity that can be produced by each solar cell is small, so if you want to produce a lot of electricity, you need a very large land.
If such problems can be solved, solar power generation may become more widespread.

Read the article: About Global Warming

Solar power generation in such a place
Solar power is being used in everyone's familiar places. Let's think together about what else is there.

House roof
Large buildings such as schools, factories, and baseball fields
Large land such as mountains and unused fields
Street lamps and signs
Calculator, Ude watch, etc.
Car roof
Satellite
Lighthouse, communication
Did you understand the mechanism and history of solar power generation that uses sunlight to generate electricity,

What you should avoid is exposing your skin to direct sunlight for extended periods of time. Ultraviolet rays increase as you go south. Furthermore, the amount of ultraviolet rays will increase not only in summer but also in May during the year. Within one day, it is said that the amount of ultraviolet rays is the highest for about 1 hour around noon. Put them in one corner of your head and use cream, parasols, long-sleeved shirts, hats, etc. to care for long periods of solar radiation. The sun has provided various benefits since the birth of the Earth. I want to keep on going well.

However, just like a vampire Dracula in a monster movie, you can get involved in life and death as soon as you get a little bit of sunlight! That's not true, and there are benefits to Nikko, so don't be oversensitive. For example, in the sun, cholesterol in your body changes to vitamin D. Speaking of vitamin D, it is an important ingredient for forming bones and teeth. In addition, the human body is equipped with an “internal clock”, and if this goes crazy, it will be difficult for health. In the morning, the body clock is adjusted by exposure to sunlight. In addition, the bactericidal effect cannot be overlooked.


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