Frequently Asked Questions
What causes the low output power or no output during the use of
solar panels? How can I solve it?
1. Light intensity: Latitude, altitude, and sun altitude angle will affect the
light intensity; multiple measurement results show that high tempera-
ture does not equal strong light intensity.
2. Solar installation angle: In the same geographical location, due to
the different installation inclination angles, the cumulative amount of
sunlight absorbed and the cumulative difference in radiation amount
causes the difference in power generation. It works best when the solar
panel is roughly perpendicular to the light.
3. Solar panel surface temperature: When the solar panel surface
temperature is 77°F, the output power is ideal. When the temperature is
higher than 77 degrees Fahrenheit, the output power will decrease.
4. Shadow occlusion: During the working process of the solar panel, due
to the partial occlusion of the shadow and the different degrees of dust
settlement, the pollution of bird droppings will cause the "hot spot
effect", and the shaded part of the solar panel will not provide power
contribution and will not be used in the solar panel. The interior becomes
an energy-consuming load, and at the same time causes the local
temperature of the solar panel to increase. The overheated area can
cause the EVA to accelerate aging and turn yellow, which reduces the
light transmittance of the area, further deteriorates the hot spot, and
leads to aggravated failure of the solar panel. Therefore, when using it,
you should avoid blocking things and clean the surface of the solar panel
regularly.
5. Load factors: When charging the energy storage, it will be limited by
the maximum PV input current and voltage of the energy storage.
Therefore, the input power value displayed on the energy storage display
does not represent the maximum output of the solar panel. Please
confirm the PV input related parameters of the energy storage before
use;
Due to the own characteristics of PWM, there is a certain switching loss
in the process of connecting with the solar panel, so the input power
obtained by the battery will be lower than the maximum output of the
solar panel.
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