Analysis of Relation Between Power Generation Performance for Design Elements of BIPV System Through Mock-Up Demonstration

The BIPV system is an integrated system which is simultaneously performing photovoltaic power generation functions while satisfying functions of building such as housing, storage and economic factors by installing photovoltaic modules in combination with building materials. While this integration seems to be attractive, a design method is needed to get maximum power generation. Previously, the influence of design elements on power generation which is analyzed by computer simulation and demonstration has been published, still there are some problems remaining such as inaccuracies in power generation performance analysis, insufficient analysis of relationship between design elements, limited scope of verification. To solve this problem, in this paper, design and build a mock-up test building to evaluate power generation performance, and study design method based on statistical analysis of the data obtained from operation of the demonstration system. In detail, as of the main designing factors, type of the module (c-Si, a-Si), installation angles (90°, 75°, 30°, 15°, 3°), and direction (west, southwest, south, southeast, east) were selected. To analyze the effect of selected design elements on power generation performance, operational data for one year was obtained and validity of the data was verified using statistical techniques. Also, suggested a design which optimizes power generation performance through analysis of relationship between various design factors. The results of this study can be used as basic data when deciding applicability of BIPV system and optimal selection of design elements when designing a BIPV system.