Normally, solar energy that hits the earth on an area of 1 square meter will receive about 1,000 watts of energy. Therefore, in 1 day, we can receive about 4-5 hours of solar energy in a total of almost 11 hours, resulting in production efficiency. Electrical energy is about 10-16 percent per day.
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But it depends on the size of the solar cell. If the solar cell panel has a size of 1 square meter, it can produce about 100-160 watts of electricity, so in 1 day we will get about 500-800 watts of electricity.
but with the properties of the solar cells it cannot store its own energy, therefore, it is necessary to have a device to help convert solar energy into electrical energy The device is responsible for absorbing sunlight that has been obtained through the production process to generate direct current electricity. thus making it possible to Electricity can only be used with electrical equipment used for direct current. In addition, electricity from a single solar cell is still not enough to be used Therefore, several cells were joined together to form a panel. and connect the circuits in each cell in series and parallel in order to get enough electricity for use and if you want to store energy When using without sunlight or other applications, the cells must be connected to the battery. which acts as an energy store for use Including having to have a charge controller It will control and prevent the charging current to be the right amount for the battery. As I have already explained the main principles of the components in the solar cell system.
But in some cases or at times when there is no sunlight and in the waning sun In these cases, it does not mean that the solar cell stops producing electrical energy. But it may produce less power according to the instability of the power and direction of the sunlight. or even during the night If there is a light such as from a fluorescent lamp Solar cells can still be converted into electrical energy. only in very small quantities In addition, at times when the weather is cold. Many people may misunderstand that solar cells are too hot to be able to produce energy. regardless of whether there is a factor caused by the hot sun or the sweltering heat caused by the monsoon winds in certain periods
This is actually a misconception. Because solar cells have a production mechanism that is related to electronic devices. which does not reduce work efficiency If it is in a high-temperature or very hot climate, then the solar cell will be more efficient for cold or low-temperature periods. But vice versa during cold weather or winter. The production capacity of solar cells will be less. Due to the period in time The solar cell system will have the ability to produce electricity. The day is shorter than the night. And in addition, for the winter there are other factors that hinder production as well, such as the sun’s angle. or fog and clouds obscuring the sun more than in summer, etc.
There are also other factors. That causes solar cells to have lower power output, such as having dirt on the solar panel. Whether it’s dust, bird droppings, leaves or even other soot. mixed in the air, etc. These impurities will block the sunlight that falls on the surface of the solar cell Resulting in a huge reduction in the production of electricity. For example, if we find that there is dirt left on the solar panel. Should use clean water to wash all those impurities out. or if it is conducive to using glass cleaner as well But do not use other cleaning agents or use sandpaper to scrub the surface of the solar panel.
How the current solar cell system works
In laying down the principle of installing a solar cell system with the normal electrical system We will have enough electricity to use during the day with continuous sunlight. But if we want to use electricity during the night We need to supply batteries. to be stored for use at night And the battery must have enough energy storage space to use as well. At present, solar cell systems have been developed to be compatible with electric power transmission systems. from electricity to provide some time without sunlight or not enough will be able to switch or pull normal electrical power from the transmission line to be used immediately
