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Cold weather makes solar cells more efficient in converting solar energy into electrical energy. And works better in conditions of high temperatures or hot weather. The reason is that solar cells are electronic devices that produce electricity from sunlight Some working mechanism Uncomfortable for working in high temperature weather conditions For in winter Which the weather is cool But solar cells can produce less power than in the summer This is because the daytime is shorter, the sun is at a lower angle. And cloud cover more sunlight than summer

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The solar cell itself cannot store energy. But is a device that transforms solar energy into electricity When absorbed by sunlight, it will go through the process of generating electricity Which is direct current The electricity can be used with electrical equipment used for direct current only. Since there is not much electricity from solar cells So there are many cells The cells connect together in a panel. To get enough electric current for use And if wanting to save energy, spend time without sunlight or other uses Will need to connect the cells to the battery (Battery), which acts as energy storage to use Including the need to have a charge controller (Charge Controller), which will control and protect the charging current to be suitable for the battery.

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In general, the solar energy that hits the earth on an area of 1 square meter will receive about 1,000 watts of power, which in one day we can receive solar energy for approximately 4-5 hours and the efficiency of changing solar energy into electrical energy will be At around 10-16% depending on the type of solar cell Which means 1 square meter solar cell can convert to electric power 100-160 watts and in 1 day can produce 500-800 watts of electricity

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In the production of electrical energy of solar cells Will use the photoelectric principle of semiconductors By using the movement of electrons Which does not affect the wear of objects Makes the lifespan of the solar cells up to 20-25 years

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PV or Solar Cell is a device that can produce electricity directly from sunlight or light. Solar cells are made from semiconductors such as silicon, Gallium Arrsenide, Indium Phosphide, Cadmium Telluride and Copper Indium. Copper Indium Diselenide, when absorbed solar energy and transform into electricity carriers And will be separated into positive and negative electric charges to create voltage at both poles of the solar cell When the polarity of the solar

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Should choose the current that is received from the battery to be higher than the current consumption of electrical equipment and the current (Ah) is higher than the current charged from the battery charger about 6-7 times.

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Increasing the electric power of solar panels Achieved by bringing the solar cell panels connected in parallel (the anode of all solar cells connected together , The negative pole of all the panels are connected together) such as having a 40W panel to increase the total electric power = 120 watts. Therefore, 3 panels of 40 watts must be connected in parallel. We will get the total electricity produced = 40x3 = 120 watts.

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It can be done, but the efficiency is not as good as charging through the battery charger and there is no stopping charging when the battery is refilled. We have to remove the solar panels by ourselves when Full battery

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The solar cell panel can be used to charge a 12V or 24V car battery.

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The solar cell panel can be used to charge the battery like AA or AAA size batteries, Nicd or NiMh, Lion + batteries, lead acid batteries