A new report by the International Energy Agency’s Photovoltaic Power Systems Programme (IEA-PVPS) estimates that lost revenue from PV module soiling amounts to more than €3 billion ($3.2 billion) per year – an amount that is only set to increase as PV systems grow larger and more efficient.
Enray Solutions has developed an autonomous, water-free cleaning robot for ground-mount solar installations that draws its power from an on-board PV panel and battery. The robot is designed to withstand the harsh environmental conditions of all kinds of terrain.
Bangalore-based Nunam—which enables second life for used lithium-ion battery cells—is the winner of Pulse India competition conducted by French energy giant EDF. The EDF contest aims at supporting Indian startups committed to developing low-carbon and sustainable energy solutions.
The super-hydrophobic coating using functional nanoparticles repels dust deposition on the solar panels and cleans itself by the action of water on the modules.
The inefficiency and irregularity of cleaning the solar panels manually, and the associated use of water defeat the purpose of shifting to renewable energies.
Scientists in the U.K. have developed a system which makes panels vibrate to provide cleaning. The academics have conceded, however, they are yet to calculate the ‘sweet spot’ of mechanical stress to be applied.
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