NREL confirms world-record 43.5% efficiency on Solar Junction’s CPV cell

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Solar Junction’s concentrated photovoltaic (CPV) cell has achieved a world-record efficiency of 43.5%. The company reported that the US Department of Energy’s (DOE) National Renewable Energy Laboratory (NREL) confirmed the commercial-ready production cell efficiency under their Measurement and Characterization Laboratory. Solar Junction’s 5.5mm x 5.5mm production cell received support from the DOE’s PV Incubator Program and beat the current CPV cell efficiency record by 1.2%. Furthermore, the company maintains that the CPV cell’s average efficiency gain is higher than that achieved by any prior record holders.

The company’s CPV cell was calculated to have a peak efficiency of 43.5% at greater than 400 suns and preserved efficiency as high as 43% out to 1,000 suns. Solar Junction pointed out that over the past four years world-record CPV cell efficiencies typically saw improvements of 0.4% annually. The company’s new world-record however, comes only two months after the NREL confirmed 41.4% efficiency under the PV Incubator program.

“There’s no question that we’ve been on a nine-month tear,” said Jim Weldon, CEO of Solar Junction. “We’ve delivered on milestone after milestone and attribute this to our superior performing technology platform, driven by our dedicated, hard-charging technical team, supported by our integrated in-house manufacturing line that has enabled, and will continue to enable, multiple iterations of product improvement on an accelerated timeline. With A-Slam, we have a highly extensible technology that is actually delivering a clear and continued path to higher efficiencies in both the short and long term. That bodes well for CPV.”

(For more on recent developments in the new era of 40%-plus efficiency CPV cells, check the Chip Shots blog here.)

 

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