Prediction of Optimum High-Efficiency Devices Setting in Residential Micro Grid (Economic Assessment from Manufacturing to Operation and Evaluation of Pay-Back Time)

概要

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Microgrid is paid attention as the system that can reduce CO2 emission from residential area. Microgrid can absorb the fluctuation of electricity power which might be originated from several kinds of renewable energy system, therefore it does not negatively affect on the stability of the utility grid. In addition, microgrid has the capability to control the heat-and-power ratio in demand and supply by optimizing the combination of several kinds of high efficiency residential devices in the area. Depending on the area where microgrid is applied, the reductions of CO2 and cost might be changed. However, here are few researches on the effect of areal characteristics. Hence in this report, microgrid was evaluated environmentally and economically in several kinds of areal characteristics; specifically, 12 kinds of demand patterns, 4 kinds of photovoltaics capacities, and 3 kinds of CO2 emission coefficients of electricity. As a result of the analysis, microgrid has economic advantages in each area.