Performance of Photovoltaic Module according to Non-Uniform Azimuth

비동일한 방위각에 의한 PV모듈의 발전성능

  • Kim, Hyun-Il (Photovoltaic Research Group, Korea Institute of Energy Research, Dept. of Architectural Engineering, Graduate School, Inha University) ;
  • Park, Kyung-Eun (Photovoltaic Research Group, Korea Institute of Energy Research) ;
  • Lee, Ki-Ok (Photovoltaic Research Group, Korea Institute of Energy Research) ;
  • Kang, Gi-Hwan (Photovoltaic Research Group, Korea Institute of Energy Research) ;
  • Yu, Gwon-Jong (Photovoltaic Research Group, Korea Institute of Energy Research) ;
  • Suh, Sung-Jik (Photovoltaic Research Group, Korea Institute of Energy Research)
  • 김현일 (한국에너지기술연구원, 인하대학교 대학원 건축공학과) ;
  • 박경은 (한국에너지기술연구원) ;
  • 이기옥 (한국에너지기술연구원) ;
  • 강기환 (한국에너지기술연구원) ;
  • 유권종 (한국에너지기술연구원) ;
  • 서승직 (인하대학교 대학원 건축공학과)
  • Published : 2009.11.19

Abstract

In 2008, the global photovoltaic(PV) market reached 5.6GW and the cumulative PV power installed totalled almost 15GW compared to 9GW in 2007. Due to a favourable feed-in-tariff, Korea emerged in 2008 as the 4th largest PV market worldwide. PV power installation rose 495.5 percent to 268MW in 2008 compare to 45MW in 2007. However many PV systems are not installed in suitable part which is concerned about geometrical factor. It is generally recognized that the actual output of PV system in field is a function of orientation, tilt angle, irradiance, temperature, soiling and various system-related losses. Thus this paper shows that a experimental result of PV modules(A group) with uniform azimuth angle and PV modules(B group) with non-uniform azimuth angle. As a result, the electrical output of B group is decreased 48.8% as compared with electrical output of A group.

Keywords