Solar cell is applied to many buildings to save building value and energy. Generally, commercialized
solar cell installation methods are based on a two-dimensional array of modules or arrays, and thus are
limited in installation area. Thus, it is necessary to develop a solar cell module having a three-dimensional
structure in consideration of the incident angle of the sun, suppression of shadowing, and the number of
cells per module. The installation of the three-dimensional solar cell module can maximize the power
generation efficiency of the solar cell per unit area. Therefore, in this study, the efficiency of solar cells
according to geometrical arrangement was compared by fabricating two - dimensional plate type, three -
dimensional drawer type, radial type and step type solar cell module. The three-dimensional solar cell
module has improved efficiency compared to the two-dimensional flat panel solar cell. In particular, drawer
type solar cell modules have higher power efficiency than other solar cell modules (flat type, step type,
radial type), and have advantages of easy movement and storage. However, in the case of the radial type,
it is necessary to further improve the efficiency in terms of processing the solar cell.