抄録
This paper presents the evidence of power demand reduction measures during the summer peak-time, including the Advice Report designed by authors, which incorporates a variety of behavior-scientific intelligence. Through the randomized experiment targeted on the almost 230 residents in a condominium receiving high-voltage collective power, we evaluated the average treatment effects (ATEs) of (1) the increasing tariff based on instantaneous electricity usage (kW), (2) the visualization of actual electricity usage on In-Home Display, (3) the Advice Report, and (4) the email alert to curtail the electricity usage during the grid peak-time. The total ATE of these measures was 11.1% on the grid peak- time, 8.7% on the peak-time of the targeted condominium, and 6.9% whole day. In addition, questionnaire survey results also showed the analogous trends, such as the fact that the households receiving the measures had significantly higher level of consciousness on peak-time electricity conservation than the others. Though the results were not statistically significant, it suggested the general trends of the effectiveness of each measure.
