Power calculation of solar photovoltaic modules

2023-03-07

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 inverters. In order to make the solar power generation system provide enough power for the load, it is necessary to reasonably select each component according to the power of the electrical appliance. The following takes 100W output power and 6 hours of use per day as an example to introduce the calculation method:
1. First, the number of watt-hours consumed per day (including the loss of the inverter) should be calculated: if the conversion efficiency of the inverter is 90%, 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 111W * 5 hours = 555Wh.
2. Calculate the solar panel: 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 panel should be 555Wh/6h/70% = 130W. 70% of which is the actual power used by the solar panel during the charging process.

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Introduction of main raw materials and components of solar photovoltaic modules

2023/03/08