Abstract
This paper provided the evaluation on energy saving effectiveness of residential cogeneration systems like micro gas engine and fuel cells based on household energy demand. In addition, indicators to determine the optimum energy saving system were analyzed by our residential energy end-use model. The energy demand and energy saving effect of micro gas engine and fuel cells in 200 households were estimated. The impact of household profile and demand characteristics on the energy saving was evaluated using the multiple regression analysis. The energy saving effect was characterized by the existence of household member in the house during the daytime of weekday. Energy saving effect was most influenced by the frequency of bathing in households. These household characteristics would be effective to determine the best system in households.
