In this post we will be busting the myth that hotter temperatures increase the amount of energy produced by solar panels. Even though a solar PV system does produce energy in months like December and January, this isn’t because of temperature.
This may surprise some people, because it would be easy to assume that hotter temperatures would generate more energy, considering solar systems are powered by the sun, but that’s not the case because just like any piece of electronic equipment, a solar panel will lose efficiency the hotter it gets.
When the temperature turns extremely excessive, the energy output of a PV system is hampered and results in unexpected energy loss.
Why does temperature affect the solar photovoltaic model?!
The efficiency of solar panels is negatively affected by an increase in temperature. In practice, photovoltaic modules are tested at a temperature of 25 degrees C (STC), this is the Standard Test Condition temperature where the module’s nameplate power is determined.
The heat can reduce energy output efficiency by 10 to 25%, depending on the solar panel’s installation location. Increase in the temperature of the solar panel increases the output of current exponentially and lowers the voltage output linearly, severely reducing the solar panel’s capability to produce power.
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