Translations:PV module/19/en

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A diagram of the I-V curve of a PV module as the temperature fluctuates.

Cell temperature is the no more complicated than it sounds - the temperature of the PV cells. Cell temperature can be easily measured and has a direct relationship with voltage. Cell temperatures above 25°C decrease cell voltage and cell temperatures above 25°C increase cell voltage. If cell temperatures are below 25°C, it is possible for a to exceed the module's rated Open Circuit Voltage (Voc). Losses due to increased cell temperature greatly decrease PV cell production in all PV installations at some moment. The formula for calculating losses due to increased cell temperatures is:

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