Solar researchers might give the U.S. a chance to catch up with China
Producers of solar panels in the United States say they are on the cusp of a technological breakthrough that could upend the industry and even threaten China’s grip on it.
The manufacturers are racing to develop new kinds of panels that can generate 25 percent more energy than most such devices available today. If they are successful, the advance will allow the world to meet the rapidly rising demand for electricity with less land and roof area.
The new technology, known as tandem solar, involves adding second and third layers of material, like a layer cake, to allow panels to convert more of the sun’s radiance into electricity.
Researchers have been working to perfect tandem panels for many years, but now several companies, including Tandem PV, First Solar and Hanwha Qcells, say they are preparing to sell such panels commercially soon, after successfully testing the devices and obtaining certifications from technical bodies.
“It is the next frontier,” said Mike Carr, executive director of the Solar Energy Manufacturers for America Coalition. He acknowledged that Chinese companies were also working on tandem solar but said their technology “is not better than ours and maybe even behind us.”
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