**2. Methodology**

In this study, a full-scale mock-up model was constructed in order to evaluate the power output performance of a PV module laminated with a transparent thin-film solar cell. A mock-up model was designed for a PV module that had a range of inclined slopes, and was used to measure the power output according to the slope (incidence angle) and the azimuth angle. The collected experimental data was then compared with the simulated data for a power performance analysis.

A commercialized single plate transparent thin-film solar cell with amorphous silicon was used in this study (KANEKA, Japan). This was modified into a double glazed PV module in order to install the mock-up model for this study.

Using the full-scale mock-up model, the system output was monitored for 9 months. A computer simulation (TRNSYS, University of Wisconsin, USA) of the PV module was also performed at the same time, and empirical application data was calibrated for the statistical analysis of power performance based on the inclined slope and the azimuth angle. In particular, the annual power output of the PV module was obtained by analyzing the data obtained from the remaining 3 months on the basis of the 30 years' standard weather data in Korea.
