File:PVeff(rev140627).jpg
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 17:42, 30 June 2014 | 4,108 × 2,456 (3.31 MB) | Dgwinner | {{Information |Description=Conversion efficiencies of best research solar cells worldwide from 1976 through 2014 for various photovoltaic technologies. Efficiencies determined by certified agencies/laboratories. |Source=National Renewable Energy Labora... |
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