L R AS Published on Monday 12 April 2021 - n° 358 - Categories:R&D
R&D highlights: sky cooling, 25.6% perovskite cell, 24.2% heterojunction, 20.5% perovskite panel
R&D Highlights: Sky cooling, 25.6% perovskite cell, 24.2% heterojunction, 20.5% perovskite panel
Researchers from the Institute of Nanotechnology in Lyon (INL) have studied radiative sky cooling (RSC)
as a means of cooling solar panels (see photo). This cooling occurs when the surface of an object absorbs less radiation from its surroundings and less than the energy it radiates. When this happens, the surface loses heat to outer space and a cooling effect can be achieved without the need for energy.
According to these researchers, this system could reduce the temperature of the panels by about 10°C and increase their efficiency by more than 5 W/m².
https://www.pv-magazine.com/2021/04/06/cooling-pv-modules-with-radiative-sky-cooling/
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Korean scientists from Unist and Swiss scientists from EPFL achieved an efficiency of 25.6% for a perovskite solar cell. It was stable for 450 hours
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Akcome, the Chinese cell manufacturer, claims to have achieved an efficiency of 24.2% with a heterojunction cell in industrial production at its factory in Huzhou (Zhejiang). The company aims to have eight heterojunction cell production lines with a combined capacity of 2 GW in place by the end of the year.
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A Chinese start-up reportedly achieves 20.5% efficiency with a perovskite mini-panel (64 cm²)
