4 FAQs about Photovoltaic panel installation thermometer usage

Which temperature sensors are used in solar power plants?

Temperature measurement is made using ambient temperature and module temperature sensors in solar power plants. As Seven Sensor, we recommend using both types of sensors in solar power plants. The ambient temperature and module temperature sensors that we produce as Seven Sensor are manufactured with PT1000 and DS18B20 sensors.

How does temperature affect photovoltaic energy production?

In photovoltaic systems, there is an inverse ratio between power output and panel temperature. As the temperature increase in the panels, the power received from panels will decrease. As the temperature in the cells inside the panel increases with the increase of the ambient temperature, the energy production will decrease.

How do I perform a solar thermography inspection?

For good thermography inspections select a clear, dry day. Measure solar radiation with an appropriate light meter to make sure that the solar radiation is at or above 650 W/m2. In direct sunlight solar panels work at full capacity and damaged solar cells will show clearly on the infrared image.

What should a thermographer look for in a solar panel?

Viewing angle and position. The viewing angle and position are important for good thermographic measurement. The camera must be well aligned with the solar panel. Horizontal alignment 60-90°, and the vertical alignment should be close to the angle of solar radiation. Note the thermographer's shadow aligned with the sun in Fig. 12.

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