Electric knowledge for motor homes: How many kilowatts of electricity can be generated by solar panels in a day?

“How much electricity can solar panels generate in a day?” This issue is really of great concern to many car users. Before that, let’s understand the main factors that affect the efficiency of solar panel power generation.

Main factors affecting the efficiency of solar panel power generation

The first is the angle of illumination. We know that the sun rises in the east and sets in the west, and the power generation efficiency of solar panels varies with the angle of illumination. Under vertical illumination, its power generation efficiency is the highest;

The second is the light intensity, the greater the light intensity, the greater the working current of the solar panel;

The third is shadow blocking. If some external air conditioners and satellite televisions on the top of the RV block the solar panel, it will definitely reduce its power generation efficiency. Therefore, it is necessary to avoid blocking during installation.

In order to verify the impact of shadow shielding on the power generation efficiency of solar panels, relevant laboratories have also conducted corresponding tests.

After conducting 1/2 horizontal shielding and 1/2 vertical shielding on 100W solar panels, it was found that the impact of horizontal shielding is more severe than that of vertical shielding. At 1/2 horizontal shielding, the measured current is 0.01A, with almost no current output;

In addition, some dust and debris on the solar panel can also affect its power generation efficiency.

How much electricity can solar panels generate in a day?

If you ask how much electricity a solar panel can generate in a day? Under the influence of so many factors, it is actually difficult to give an absolutely certain number.

However, we can perform a theoretical calculation: a 100 watt solar panel can theoretically emit 100W * 6H=600WH=0.6KWH=0.6 kWh under standard lighting conditions (light intensity per square meter is 1000W) and an average sunshine duration of 6 hours.

After all, there is a gap between theory and reality. If we take into account various losses (line loss, light angle, light intensity, etc.), we can calculate at a conversion rate of 70%, and a 100 watt solar panel can generate about 0.6 * 70%=0.42 degrees of electricity per day.

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