The solar AC power generation system is composed of solar panels, charge controllers, inverters and batteries; the solar DC power generation system does not include the inverter. In order to enable the solar power generation system to provide sufficient power for the load, it is necessary to reasonably select each component according to the power of the electrical appliance. Take 100W output power and use it for 6 hours a day as an example to introduce the calculation method:
1. First, calculate the watt-hour consumption per day (including the loss of the inverter): if the conversion efficiency of the inverter is 90%, then when the output power is 100W, the actual output power should be 100W/90 %=111W; if it is used for 5 hours a day, the output power is 111W*5 hours=555Wh.
2. Calculate the solar panel: According to the daily effective sunshine time of 6 hours, and considering the charging efficiency and the loss during the charging process, the output power of the solar panel should be 555Wh/6h/70%=130W. Among them, 70% is the actual power used by the solar panel during the charging process.
