The operating voltage of a solar panel refers to the voltage when the output power is maximum under the rated light intensity
For example, a 12V solar panel has a voltage of 21V open circuit and operating voltage. 16 to 17 volts. It is most efficient when you use it to charge a 12V battery. The operating voltage of a 12V battery is typically 11 to 14 volts. Therefore, even if it faces the sun at noon, feeding cannot be carried out. reach 60% to 70% of rated power. This is mainly because the charge is not sufficient. The adaptation is not caused by the false power standard of solar panel manufacturers. There are many factors that affect the power output of solar panels. the angle of incidence of sunlight, air quality, ambient temperature, load adaptation, resulting inbig difference between actual output power and rated power. Typically it can only reach 60-70% and the average throughout the day is less than 50%.
Some grid-connected inverters can automatically adjust the most reasonable operating point for load tracking, and the efficiency is higher
The peak voltage is the voltage highest under strong light;
The working voltage is the voltage measured when the battery board is charged;
The open circuit voltage is the no-load voltage of the battery board;
The peak voltage is the highest, the open circuit voltage is the second, and the operating voltage is the lowest.
Solar panel is a device that absorbs sunlight and converts solar radiation energy directly or indirectly into electrical energy by photoelectric effect or ph effectotochemical. The main material of most solar panels is "silicon", but the cost of production. is so high that it cannot be widely and commonly used in large quantities. Compared with ordinary batteries and rechargeable batteries, solar cells are more energy-saving and environmentally friendly green products.