Abstract
The propose of this study is evaluating characteristics for wall-mounted PV arrays of west wall. The building wall is facing the West Rating power of CIS array is 1.7 kWp and that of u-Si array is 5.2kWp. We tried to investigate irradiance distribution of height direction on the building's wall. We compared wall irradiance with rooftop irradiance. As a result, West wall was able to obtain solar energy almost half amount of rooftop's horizon surface. Moreover, incident angle calibration and relative transmittance was discussed to calculate effective conversion efficiency of PV arrays on the west wall. Module's back temperature on the rooftop and on the west wall is shown and some I-V curves are represented.
