抄録
Microgrid is noticed as the system that can reduce CO_2 emission from residential area. Microgrid can absorbs the fluctuation of electricity power which might be originated from several kinds of renewable energy system, therefore it doesn't 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 CO_2 and cost might be changed. 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 PV capacity, and 3 kinds of electricity CO_2 emission coefficients. In this study, microgrid was compared with energy-saving housing. CO_2 emissions and costs of microgrid and energy-saving housing were minimized in each optimization by using MAPLE before the comparison was conducted. As a result of the analysis, MG has environmental and economic advantages in each area. Moreover, predictive models of the CO_2 emission and the cost were formulated.
