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Double-sided solar panels that tilt based on the sun’s position could boost the amount of energy collected. The two approaches existed independently before, but researchers have now looked at the effects of combining them.
Carlos Rodríguez-Gallegos at the Solar Energy Research Institute of Singapore and his colleagues found that double-sided solar panels that track the sun would produce 35 per cent more energy and reduce the average cost of electricity by 16 per cent.
The goal for any solar panel is to absorb as much energy from the sun as possible, says Rodríguez-Gallegos. At present, solar panels around the world are predominantly installed with a fixed orientation, and absorb light only from one side.
The advantage of using two-sided solar panels is that they can also absorb energy that is reflected by the ground onto their rear side, says Rodríguez-Gallegos.
Two types of sun-tracking solar panels exist. Single-axis trackers follow the sun over the course of a day, moving from east to west. Dual-axis trackers also follow the sun over the course of a year, changing position according to the seasons, because the sun’s elevation is higher in summer and lower in winter.
www.newscientist.com
Carlos Rodríguez-Gallegos at the Solar Energy Research Institute of Singapore and his colleagues found that double-sided solar panels that track the sun would produce 35 per cent more energy and reduce the average cost of electricity by 16 per cent.
The goal for any solar panel is to absorb as much energy from the sun as possible, says Rodríguez-Gallegos. At present, solar panels around the world are predominantly installed with a fixed orientation, and absorb light only from one side.
The advantage of using two-sided solar panels is that they can also absorb energy that is reflected by the ground onto their rear side, says Rodríguez-Gallegos.
Two types of sun-tracking solar panels exist. Single-axis trackers follow the sun over the course of a day, moving from east to west. Dual-axis trackers also follow the sun over the course of a year, changing position according to the seasons, because the sun’s elevation is higher in summer and lower in winter.
Two-sided solar panels that track the sun produce a third more energy
Double-sided solar panels that track the sun as it moves in the sky would produce 35 per cent more energy and reduce the average cost of electricity by 16 per cent
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