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

fYear

2012

fDate

3-8 June 2012

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 P_mp, V_mp, short circuit current (I_sc), Open circuit voltage (V_oc) 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;

fLanguage

English

Publisher

ieee

Conference_Titel

Photovoltaic Specialists Conference (PVSC), 2012 38th IEEE

Conference_Location

Austin, TX

ISSN

0160-8371

Print_ISBN

978-1-4673-0064-3

Type

conf

DOI

10.1109/PVSC.2012.6318074

Filename

6318074