Abstract
The demand pattern with a high time resolution is indispensable to examine and design an appropriate distributed energy system for residential sector. This paper describes energy consumption pattern with high resolution in the apartment of a cold district which consists of 34 households. The heat-power ratio of energy demand changes from about two in summer to about ten in winter. The maximum electric power demand is about 1kW/household and the minimum is about 200W/household. The estimated minimum capacity of electricity storage device is 80wh/household. The several simulation of distributed systems based on the survey of energy demand is carried out. By the system which consists of SOFC and heat pump, as a result of operating heat pump in accordance with heat demand, energy consumption was reducible 26%. Further, as a result of enlarging the generator of the system and operated to meet electric power and heat demand, energy consumption was cut down further and 95% of total electric power demand has been supplied by the distrib-uted system. Furthermore, in the system which added the electricity storage device of the capacity of 10kWh, it turns out that it is possible to supply 100% of electricity demand.
