Title :
Low concentration photovoltaic module design using bifacial solar cells
Author :
Ortabasi, Ugur ; Firor, Kay ; Ilyin, M.
Author_Institution :
SCI-TECH Int., Pleasanton, CA, USA
Abstract :
A 20* passive one-axis tracking concentrator using both direct and diffuse components of solar radiation and albedo is described. The design combines a linear Fresnel lens with a composite second stage consisting of a dielectric cusp and a luminescent flat plate concentrator. Total photon flux captured is refractively guided to the light-sensitive areas on both sides of the cell. A 22.6% efficient bifacial cell made from dendritic web silicon is used. Calculations indicate an effective module efficiency of 23% under 800 W/m2 direct component, 200 W/m2 diffuse component, and 25% albedo.
Keywords :
solar energy concentrators; 22.6 percent; Si; albedo; bifacial solar cells; dendritic web silicon; dielectric cusp; diffuse components; direct component; light-sensitive areas; linear Fresnel lens; luminescent flat plate concentrator; one-axis tracking concentrator; photon flux; solar radiation; Cooling; Dielectrics; Lenses; Optical design; Optical refraction; Optical sensors; Photovoltaic cells; Photovoltaic systems; Silicon; Solar power generation; Solar radiation;
Conference_Titel :
Photovoltaic Specialists Conference, 1988., Conference Record of the Twentieth IEEE
Conference_Location :
Las Vegas, NV, USA
DOI :
10.1109/PVSC.1988.105920
