Power supply and demand of all-electrified net zero energy houses

Reina Oki, Takaomi Ogawa, Shin Ichi Tanabe

Research output: Contribution to journalReview articlepeer-review

1 Citation (Scopus)


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 self-sufficient rate, the amount of sales and purchase power, and the charging and discharging of storage batteries, it was inferred that most of the all-electrified ZEHs today are operated with profit as the objective, obtained by selling more electricity.

Original languageEnglish
Pages (from-to)685-694
Number of pages10
JournalJournal of Environmental Engineering (Japan)
Issue number775
Publication statusPublished - 2020 Sept


  • Energy consumption
  • Net zero energy house
  • Power supply and demand
  • Self-consumption

ASJC Scopus subject areas

  • Environmental Engineering


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