This review synthesizes the state of the art in PV cooling methods, categorizing them into passive techniques (heat sinks, fins, phase change materials, radiative coatings, and natural convection enhancements) and active approaches (air cooling, liquid cooling, jet. . This review synthesizes the state of the art in PV cooling methods, categorizing them into passive techniques (heat sinks, fins, phase change materials, radiative coatings, and natural convection enhancements) and active approaches (air cooling, liquid cooling, jet. . Passive cooling uses natural convection and heat conduction without mechanical components to dissipate or remove heat from photovoltaic modules. The principle of operation is based on the transport of heat from the place of generation to the environment. In order to increase the heat transfer. . Photovoltaic (PV) modules experience substantial electrical efficiency losses under elevated operating temperatures, driving increasing interest in active and passive cooling strategies. Every degree above the standard test condition of 25 °C chips away at performance: for crystalline silicon modules, expect a power drop of roughly 0.
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