Double-Sided Solar Panels That Track The Sun Could Produce 35% More Energy
The concepts of both solar panels that track the sun and double-sided solar panel arrays have existed independently before now, but researchers have looked at the benefits of combining them for the first time.
A team from the Solar Energy Research Institute of Singapore lead by Carlos Rodríguez-Gallegos discovered that found that panels with photovoltaic cells on both sides that could also tilt to follow the sun would produce 35 percent more energy and reduce the average cost of electricity by 16 percent.
The goal for any solar panel is to absorb as much energy from the sun as possible, Rodríguez-Gallegos said in a statement. 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.
In addition to a fixed tilt, two types of solar panel exist that can track the sun: single-axis trackers follow the sun over the course of a day, typically tilting from east to west and dual-axis trackers, which not only tilt from east to west, but also rotate 360° to follow the sun over the course of a year since the sun’s elevation is higher in summer and lower in winter.