C133 北海道の家庭部門における暖房・給湯機器の選択行動のモデル解析(OS4 省エネルギー・コジェネ・ヒートポンプ(3))

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  • C133 Model analysis of consumer selection for space heating and boiler systems in Hokkaido

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The deployment of energy saving and fuel substitution is affected by the mechanism of boiling and heating systems selection by household. This study developed the Conjoint Analysis to deal with the simultaneous selection of boiling and heating apparatuses, and analyzed the mechanism of boiling and heating systems selection by household living in rented houses in Sapporo by using conditional logit model. The result shows that the households in Hokkaido place more importance on initial cost than fuel cost when choosing boiling and cooling apparatuses. As the households using gas boiler and oil heater, about 50% of them selects gas boiler when they buy their houses, but the selection of heaters is not affected by present fuel types. About the half of households select the high efficient apparatuses, such as electric heat pumps and heat recovery-type boilers, without subsidies.

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