It mainly depends on the surface area and material of the silicon wafer of the solar cell. For example, the conversion rate of monocrystalline silicon is 17%; the conversion rate of polycrystalline silicon is 15%, and the conversion rate of amorphous silicon is 6%. -8% Further explanation: Monocrystalline silicon is 1000W/M2, the photoelectric power of 1 square meter of monocrystalline silicon wafer is 170W. By analogy, the voltage of each wafer is 0.5V independently. size. For example, if the component voltage is 12 V, 24 slices should be connected in series. The composition depends on the surface area of the silicon wafer. Currently, there are two specifications of domestic silicon wafer (except amorphous). silicon), one measures 165 mm and the other 125 mm. For example: the nominal parameter of a solar panel is 18V/100W. It consists of 18*2=36 silicon wafers coconnected in series to form a voltage of 18 V. The total area of the silicon wafers is 1:160=X. :100; /36=0.017 square meters; If you don't have a certain solar energy technology, you may not be able to understand my answer, just use it as a reference.
The maximum power of photovoltaic panels can reach 300 W/unit, and the generally used power is 230 W. Some modules have 72 cells and some modules have 60 cell modules.
The output current of the solar panel is related to the rated voltage. The rated output current of a 12V/100W solar panel is: 100W÷12V＝8.33A; The rated output current of a 24V/100W solar panel is: 100W ÷ 24V＝4.17A.
The maximum charging current of a 12V 100W solar panel is about 9 A. The longest effective lighting time in Lhasa per day is about 5.5 hours. In other regions, it is calculatedlimited to 4 hours, which means it can charge more. that 4h*9A=36Ah, even if it is 40Ah.
Detailed information:
The main function of the battery is to produce energy electricity, which is the mainstream in the electricity generation market. There are crystalline silicon solar cells and thin film solar cells, both of which have their own advantages and disadvantages.
Crystalline silicon solar cells have relatively low equipment costs, but the consumption and costs of cells are high, but the photoelectric conversion efficiency is also high, which makes them suitable for generating electricity under outdoor sunlight; have relatively low equipment costs. It is higher, but the battery consumption and cost are very low, but the photoelectric conversion efficiency ishigher than half of that of crystalline silicon cells, but the low light effect is very good and can also generate. electricity under ordinary light, like solar cells in calculators.
Reference source: Baidu Encyclopedia-Solar Panels