Calculation method of solar cell module

1. First, calculate the watt-hour consumption per day (including the loss of the inverter): if the conversion efficiency of the inverter is 90%, 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 power consumption is 111W*5 hours=555Wh.

2. Calculate the solar cell module: Calculated 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 cell module should be 555Wh/6h/70%=130W. Among them, 70% is the actual power used by the solar cell module during the charging process.