Insolight announced a new efficiency standard of 29 percent for commercial solar panels

Swiss Insolight SA announced a pre-production module to set a new efficiency standard of 29 percent for commercial solar panels. According to the company, a »patented optical system concentrates light onto an array of tiny space-grade multi-junction photovoltaic cells.« The panel’s protective glass embeds a grid of lenses which concentrate light by several hundred times. Under this optical layer, direct sunlight is focused on an array of high-performance space-grade solar cells. To follow the sun’s movement, the cell array shifts horizontally by only a few millimeters each day. The whole system is encased in a slim module, similar to standard solar panels, which keeps mechanical parts protected. Insolight’s product has the same form factor and appearance as standard panels, says the company.
In November 2018, the Solar Energy Institute of the Universidad Politécnica de Madrid (IES-UPM) has validated Insolight’s pre-production module at a nominal peak efficiency of 29 percent in CSTC conditions. Modules were also tested in real-life conditions for a whole year on a pilot installation at the Swiss Institute of Technology in Lausanne (EPFL) and successfully endured heat-waves, winter conditions, and storms. The company expects to see the first Insolight product hitting the market by 2022.

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