Battery-solar battery power calculation method

by:Power Kingdom     2021-07-17

  Today, the battery teaches you how to calculate the power of a solar battery pack. The solar cell module is the core part of the solar power system and an important part of the solar power system. Its function is to convert solar energy into electric energy, or send it to batteries for storage, or to drive loads. The quality and cost of solar cell components will directly determine the quality and cost of the entire system.

  Power calculation

  The solar AC power generation system consists of solar cell modules, It is composed of charge controller, inverter and battery; solar DC power generation system does not include inverter. In order for the solar power generation system to provide enough power for the load, the components must be selected reasonably according to the power of the electrical appliance.

   Generally speaking, solar panel power u003d battery power X value X loss. The power of solar panels is divided into theoretical power and loss, and the power is different for different degrees of loss.

   Taking 100 watt output power for 6 hours a day as an example, describe the calculation method:

   1. First of all, it should be calculated The number of watt-hours consumed 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 required output power should be 100W/90%u003d111W; When used for 5 hours a day, the power consumption is 111W*5 hoursu003d555Wh.

  2. Calculation of solar cell modules: the output power of solar cell modules is 555Wh/6h/70%u003d130W, taking into account the charging efficiency and the loss during charging, based on the effective sunshine time of 6 hours per day, while taking into account the charging efficiency and charging process In the loss. Among them, 70% is the actual electricity used in the charging process of solar cell modules. Contact: 18038382979


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