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%.
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.
Cooling PV modules with passive technique based on finned heat sink
A Pakistani research team has assessed the performance of a passive heat sink cooling technique in two different configurations: one using rectangular fins and one based on circular fins. The rectangular configuration was the best in terms of heat rejection. Modules mounted with this solution had a 6 C lower temperature than modules without cooling systems.
