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US scientists have developed solar panels that generate energy at night

April 21, 2022 6:32 pm to 6:32 pm
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Solar panel technology generating energy at night
Concept Art of Solar Panels Generating Energy at Night: Source –

Scientists at Stanford University in the United States have developed a solar panel that uses the temperature difference during the night to generate energy.

Scientists have discovered that it is possible to generate energy through solar panels and with the help of a photovoltaic cell at night through the difference in temperature at dawn, when the air gets colder. The research was carried out by scientists at Stanford University, in the United States.

Basically, the solar energy is generated when the sun's energy is radiated to a solar panel with a lower temperature. Subsequently, the panel's solar cells, made with layers of a power semiconductor material that generate a flow of electricity.

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Solar panel differential developed by Stanford scientists

What differentiates the solar panel created by the Stanford scientists is the presence of a device capable of incorporating a thermoelectric generator that draws electricity from the temperature difference between the environment and the photovoltaic cell of the panel.

Sid Assawaworrarit, lead author of the study, explains that the approach can provide lighting and renewable energy from night stations, for home applications or off the conventional distribution grid, in places where solar cell installations are gaining more popularity.

according to Tecmundo, not much energy is produced through these solar panels at night, but it is enough to charge an LED light or a cell phone. Although this seems little when compared to easy access to electricity, the scientists reinforced in the research summary that in remote areas the panels can be very useful, as they provide a renewable source of electricity outside the traditional distribution grid. During tests carried out in the laboratory, the scientists managed to generate a power of 50 mV/m².

“In many rural areas that need stand-alone electricity generation systems, overnight power supply often requires the installation of batteries for storage, adding complexity to the device and making the entire production more expensive,” adds Sid.

Advantages of solar panel

The solar panels developed by the scientists also have the advantage of eliminating the need to store energy in batteries in off-grid locations.

The Stanford team of scientists told New Scientist magazine that the solar panel configuration can still be improved to generate more power and that there are no intrinsic difficulties in scaling the system into a commercial product.

Sid closes by stating that due to the long lifespan of thermoelectric generators, the configuration of solar panels can have a lower maintenance cost when compared to conventional storage devices. In addition, solar panels can be used for night lighting, the scientists' system can also power sensors in remote locations, downsizing or eliminating the need for batteries.

Scientists develop a molecule that allows you to store solar energy for up to 18 years

Scientists at the Swedish Chalmers University of Technology have developed a solar energy storage system that can store electricity for years using a liquid containing hydrogen, carbon and nitrogen.

A group of scientists from the University of Technology Swedish Chalmers has been developing solutions to the solar energy storage problem for about 10 years. Scientists have developed a liquid that, when exposed to light, can change its molecular structure, remaining in that state for years. Therefore, it is possible to store electrical energy at any time through simple reactions, making the development promising to power a wide range of devices. To learn more, read this article in full by clicking here.

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