Standard Test Conditions (STC): definition and problems
STC is an industry-wide standard to indicate the performance of PV modules and specifies a cell temperature of 25°C and an irradiance of 1000 W/m2 with an air mass 1.5 (AM1.5)
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The standard test condition used for a photovoltaic solar panel or module is defined as: 1000 W/m 2, or 1 kW/m 2 of full solar irradiance when the panel and cells are at a standard ambient
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