Underground heat exchanger to cool down solar panels
Spanish scientists have built a cooling system featuring heat exchangers on solar panels and U-shape heat exchangers installed in a borehole at a depth of 15 meters. The researchers claim that this reduces panel temperatures by up to 17%, while improving performance by about 11%.
Ignacio Valiente Blanco Valiente Blanco Journal Of Solar Energy Engineering University Of Alcal Photovoltaic Solar Modules Cooling Using
Source: pv-magazine-australia.com