- Start
- Mar 22, 201725% CONFIDENCELow confidencefrom the source
- End
- Mar 23, 201725% CONFIDENCELow confidencefrom the source
Japanese company develops a solar cell with record-breaking 26%+ efficiency
- Researchers at Japanese chemical maker Kaneka Corporation, funded by Japan's NEDO, built a silicon heterojunction back-contact solar cell with 26.3 percent efficiency, beating the previous record of 25.6 percent[1][2]
- Kaneka announced the 26.3% result in September 2016; after submitting its paper to Nature Energy it optimized the cell to 26.6%, certified by NREL[1][2]
- Silicon cells have a theoretical limit of about 29 percent, while commercial panels are typically 20 percent or lower[1][2]
- The cell is 180.4 cm2 with rear electrodes and an amorphous silicon front coating, made with industrially applicable processes such as PECVD[1]
- The cell is not mass-produced and further work is required before it can be assembled into commercial panels[1][2]
- Kaneka will keep working with NEDO to bring cost to $0.06 per kilowatt-hour by 2030[1][2]
References 354% CONFIDENCE
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- [1]25%arstechnica.com/science/2017/03/japanese-company-develops-a-solar-cell-with-record-breaking-26-efficiencyarstechnica.com· Posted Aug 2, 2017· Starts Mar 22, 2017 ✓· Ends Mar 23, 2017 ✓· 45% of score
Date has passed, but arstechnica.com does not confirm it happened then; unverified.
- [2]75%Japan's solar cell renews world best record of conversion efficiencygigazine.net· Published Mar 24, 2017· 27% of score
Gigazine, published 24 March 2017 within the pin's stored 22-24 March 2017 window, reports Kaneka's cell reached "a power efficiency of 26.6%" certified by NREL, corroborating the record-breaking efficiency claim in the pin's description.
- [3]82%Efficiency of silicon solar cells climbs past 26 percenttechxplore.com· Published Mar 21, 2017· 27% of score
TechXplore reports Kaneka Corporation "broken the record for silicon-based solar cell efficiency by producing a cell that was tested to be 26.3-percent efficient," published 21 March 2017, one day before the pin's stored 22 March 2017 date, closely matching the announcement.
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