DE - IEEE search for the Natl. Renewable Energy Lab. 1.1K results. RI - NRELSearch01.IEEE.0001.4.1 RI - NRELSearch01.IEEE.0002.4.1 RI - NRELSearch01.IEEE.0003.4.1 RI - NRELSearch01.IEEE.0004.4.1 RI - NRELSearch01.IEEE.0005.4.1 RI - NRELSearch01.IEEE.0006.4.1 RI - NRELSearch01.IEEE.0007.4.1 RI - NRELSearch01.IEEE.0008.4.1 RI - NRELSearch01.IEEE.0009.4.1 RI - NRELSearch01.IEEE.0010.4.1 RI - NRELSearch01.IEEE.0011.4.1 RI - NRELSearch01.IEEE.0012.4.1 QY - ((("Author Affiliations":"National Renewable Energy Laboratory") OR "Author Affiliations":"National Renewable Energy Lab") OR "Author Affiliations":"NREL Solar Radiation Research Laboratory")