Building solar plants in deserts isn't very optimal.
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Solar Panels Generally Perform Better at Lower Temperatures
As the temperature of a PV panel increases above 25°C (77°F), its efficiency tends to decrease due to the temperature coefficient. The coefficient measures how much the output power decreases for every degree Celsius above a reference temperature (usually 25°C).
Higher temperatures cause the semiconductor materials in photovoltaic cells to become more conductive. It increases the flow of charge carriers and consequently reduces the voltage generated.
Some PV panels feature heat dissipation mechanisms to reverse the adverse effects of high temperatures. Passive cooling or enhanced ventilation are proven methods to get photovoltaic panels closer to optimal operating temperatures.
