Abstract
The Polymer Electrolyte Fuel Cell system is now under development for detached houses. Because the system is able to supply not only electricity but heat, it has high energy efficiency. The environmental load of the system can estimate by using the hourly schedule of electricity consumption, hot water supply and gas consumption. The model house of this study is a Japanese standard wooden house in Fukuoka. We compare the conventional system with the FC system from its consumption of energy and discharge of carbondioxide. In addition, the power generation capacity and the operating scheme of the FC have been changed to analyze their effect. As a result of this study, energy requirements of the FC system is lower than the conventional system, and carbon-dioxide emissions are also small.
