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Development of electric power disaggregation system for chain stores

The number of small stores, such as convenience stores, is increasing, and their electric power consumption is also increasing. Disaggregation technology, which identifies the statuses of devices by measuring one current at the circuit breaker board, is a preferred solution to save energy. In this research, we propose an EMS with the disaggregation technology that can estimate electric power consumption. We have tested it at a convenience store. The result shows that the system estimated the electric power consumption to be less than 15% of the MAPE for most appliances.