he solar AC power generation system is composed of solar panels, charging controllers, inverters, and batteries; The solar DC power generation system does not include inverters.
In order to provide sufficient power for the load in the solar power generation system, it is necessary to select various components reasonably based on the power of the electrical
appliances. Taking 100W output power and 6 hours of daily use as an example, the following calculation method is introduced:

1. Firstly, the watt-hours consumed per day (including inverter losses) should be calculated:

If the conversion efficiency of the inverter is 90%, then when the output power is 100W, the actual required output power should be 100W/90%~111W; If used for 5 hours per day

The power consumption is 111Wx5h=555Wh.

2. Calculate solar panels:

Calculated based on a daily effective sunshine time of 6 hours, taking into account charging efficiency and losses during the charging process, the output power of the solar panel should
be 555Wh/6h/70%=130W. 70% of it is the actual usage power of the solar panel during the charging process.