Usually, solar cells collect sunlight on their entire surface, converting it to electricity at perhaps 15-19 percent efficiency — meaning about 85 percent of the energy is lost in the conversion process. However Insolight solar panels with a unique patented technology called planar optical micro-tracking have reached this conversion rate at the peak efficiency close to 30%. According to TechCrunch news, Small but very high-efficiency cells are laid down on a grid, and above that is placed a honeycomb-like lens array that takes light and bends it into a narrow beam concentrated only on the tiny cells. As the sun moves, the cell layer moves ever so slightly, keeping the beams on target. They’ve achieved as high as 37 percent efficiency in tests, and 30 percent in consumer-oriented designs. That means half again or twice the power from the same area as ordinary panels. “Our panels were hooked up to the grid and monitored continually. They kept working without a hitch through heat waves, storms and winter weather,” said Mathiu Ackermann, the company’s CTO, in an EPFL news release. “This hybrid approach is particularly effective when it’s cloudy and the sunlight is less concentrated since it can keep generating power even under diffuse light rays.” Insolight is the spinoff company from the École Polytechnique Fédérale de Lausanne (EPFL). ——————–***——————–
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Date: Feb 20, 2019 @ 10:17
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