Research on impact of photovoltaic curtain walls on building optoelectronic performance—A case of a tourism and vacation complex

The good energy-saving effect of the transparent photovoltaic(PV) curtain wall has been demonstrated due to its two functions of power generation and indoor lighting in buildings. The PV curtain wall of the building facade of a tourism and vacation complex in Wenchang is taken as the research object, and it is tested for power generation and light transmission performance on typical weather days to evaluate the comprehensive power-saving effect of the PV curtain wall of the building facade. The results show that high and stable solar irradiance has a positive impact on the power generation performance and lighting energy-saving performance of the PV curtain wall. For the PV curtain wall using 50% transparent CdTe thin-film photovoltaic glass, the average power generation efficiency on sunny, cloudy and overcast days is 13.98%, 9.24% and 11.62%, the efficiency of photovoltaic inverter is 96.08%, 94.54% and 94.15%, the equivalent electricity can be saved by daytime lighting is 5.17, 2.17 and 0.70 kWh, and the power generation and lighting can be saved by 9.12, 3.10 and 1.15 kWh, respectively.