When the weather is gloomy, she keeps a low profile and disappears completely at night. A problem for PV installations, because without the sun there is little or no electricity. Researchers struggle to find solutions. Especially the technology that should make rain on the roof usable, crops up again and again as a possible savior. what’s up We asked photovoltaic experts.
Rain. Rain again and again. Pure horror for sun worshipers in the outdoor pool. For those who have a PV installation on the roof at home, but this may no longer be a problem? After working continuously on an even more efficient use of the power of the sun through further developments of solar cells and modules, researchers are also investigating indirect optimization possibilities. The big magic word in this context is: TENG.
TENG as a “miracle weapon”
This stands for triboelectric nanogenerators, small components that can be integrated into the PV modules. Thanks to their transparent layers, the TENG cells do not affect the actual solar cells. However, they do not use sunlight themselves, but the kinetic or frictional energy of falling raindrops to discharge charges or subsequently provide electricity (see graph below).
Source: Krone
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