Analysis of the impact of energy consumption data visualization using augmented reality on energy consumption and indoor environment quality

This study proposes augmented reality (AR) as one of the methods to effectively reduce energy consumption in smart homes while maintaining an acceptable level of indoor environmental quality (IEQ). The experiment was conducted for a total of 90 min in an environment chamber where IEQ could be controlled, and participants were able to adjust the IEQ as desired throughout the duration of the experiment. Targeting a total of 21 participants, data on energy consumption, IEQ, and psychological response were collected under two conditions: (i) without providing energy consumption data through AR software, and (ii) with providing energy consumption data. The results show that AR software can positively impact energy consumption reduction. Also, reducing energy consumption through AR software did not significantly affect the psychological response to the subjects' IEQ, suggesting that AR software can be used as an effective tool for reducing energy consumption without compromising occupant comfort concerning IEQ. In other words, when occupants are satisfied with indoor environments and are aware of their energy consumption, it means that energy consumption can be reduced for economic benefits. The results of this study suggest potential economic and social benefits from reducing building energy consumption.