全電化のネット・ゼロ・エネルギー・ハウスの電力需給に関する実態分析

Abstract

The purpose of this study is to investigate the energy consumption, power supply and demand of all-electrified net Zero Energy Houses (ZEHs).Energy measurement data of 67 all-electrified ZEHs was analyzed based on a nationwide survey conducted from 2018 to 2019. The primary energy consumption of all-electrified ZEHs was described in comparison with conventional houses. By analyzing the self-consumption rate, the selfsufficient rate, the amount of sales and purchase power, and the charging and discharging of storage batteries, it was inferred that most of the allelectrified ZEHs today are operated with profit as the objective, obtained by selling more electricity.