The environment surrounding the electricity system in Japan is undergoing major changes, for example, the increase in facility management costs due to the ageing of facilities, and the change in business structure due to the legal separation of the transmission and distribution sectors. Also, mass deployment of renewable energy is required. In this study, we evaluate the economic viability of a battery delivery system in which each consumer is independent of the electricity distribution network and is supplied with electricity through the delivery of cartridge storage batteries. In the battery delivery system, each consumer is equipped with the minimum necessary photovoltaic power generation equipment and storage batteries to produce and consume their own electricity. The capacity of the photovoltaic power generation system, the storage batteries, and the delivery method required to meet the electricity demand of the storage battery delivery system in depopulated areas are clarified. Also, the cost of installing the system and the cost of delivering the storage batteries are estimated to evaluate its economic efficiency.
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