File:PVeff(rev120817).jpg
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| Description |
English: Conversion efficiencies of best research solar cells worldwide from 1976 through 2012 for various photovoltaic tecchnologies. Efficiencies determined by certified agencies/laboratories. |
| Date | |
| Source | National Renewable Energy Laboratory (NREL), Golden, CO |
| Author | Lawrence L. Kazmerski |
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This image is a work of a United States Department of Energy (or predecessor organization) employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain.
Please note that national laboratories operate under varying licences and some are not free. Check the site policies of any national lab before crediting it with this tag.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 16:27, 17 August 2012 | | 3,947 × 2,662 (3.68 MB) | Dgwinner (talk | contribs) |
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