Title :
Outdoor Performance of 10 year Old a-Si and Poly-Si Modules in southern Norway conditions
Author :
Verma, Deepak ; Tayyib, Muhammad ; Saetre, Tor O. ; Midtgård, Ole-Morten
Author_Institution :
Fac. of Eng. & Sci., Univ. of Agder, Grimstad, Norway
Abstract :
The outdoor performance of 10 years modules has been measured in southern Norway conditions. For this study, Poly-Si and a-Si modules are selected and the measurements are carried out using a portable electronic load. The I-V characteristics and maximum power have been recorded for several modules of each technology. It is found that Poly-Si modules perform very well even after 10 years of span whereas some of a-Si modules have visual degradation which causes significant power losses. The experimentally outdoor monitored values of Pmp, Vmp, short circuit current (Isc), Open circuit voltage (Voc) and efficiency for different modules are compared with manufacturer´s values.
Keywords :
elemental semiconductors; silicon; solar cells; I-V characteristics; a-silicon modules; manufacturer values; open circuit voltage; outdoor performance; poly-silicon modules; portable electronic load; power loss; short circuit current; southern Norway conditions; visual degradation; Degradation; Photovoltaic cells; Photovoltaic systems; Silicon; Temperature measurement; Visualization; Poly-Si; a-Si; degradation; photovoltaic cells; silicon;
Conference_Titel :
Photovoltaic Specialists Conference (PVSC), 2012 38th IEEE
Conference_Location :
Austin, TX
Print_ISBN :
978-1-4673-0064-3
DOI :
10.1109/PVSC.2012.6318074
