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PV panel cooling

Cooling PV panels with shallow geothermal energy

Iraqi researchers have demonstrated the technical and economical feasibility of using shallow geothermal energy to cool PV systems. They tested two different techniques – a closed-loop system and an open-cycle system – to reduce power losses from 30% to up to 4.1%.

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Radiative cooling for CPV systems

Scientists in the United States have tested soda-lime glass radiative coolers in a CPV system and claim these can reduce the device operating temperature by 5 to 36 degrees Celsius. This may result in an increase in the solar cell’s open-circuit voltage of between 8% and 27%.

Cooling PV panels with seawater

An Anglo-Egyptian research group has developed a passive cooling method based on saturated activated alumina, with saline water as a cooling agent.

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