Keywords: PVeff(rev160419).jpg en Conversion efficiencies of best research solar cells worldwide from 1976 through 2016 for various photovoltaic technologies Efficiencies determined by certified agencies/laboratories 2016-04-19 05 16 18 National Renewable Energy Laboratory NREL Golden CO Sarah Kurtz and Keith Emery other versions PD-USGov Uncategorized 2016 April 20 |