Indoor environment and productivity in offices under mandatory electricity savings after the great east Japan earthquake

Shin Ichi Tanabe, Yuko Iwahashi, Sayana Tsushima

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The great east Japan earthquake of March 11, 2011, wreaked enormous damage, forcing the Japanese government to mandate a 15% peak power reduction to address shortages in summer. Office workers were forced to be patient. The present paper reports the results of field studies conducted in Tokyo office buildings during summer to understand the relationship between indoor environment, productivity, and energy conservation measures under the mandated limits. Occupants generally expressed discomfort regarding the high temperature, but widely accepted the decrease in illumination from 750 to 300-500 lux. Increased awareness regarding power savings was found, with more than 90% of people accepting the poor indoor environment in light of the shortages that year. Clothing and raising set point temperature recommendations made by the Super Cool Biz campaign were followed in most offices. However, self-estimated productivity was 6.6% lower than last summer. Strategies for electricity savings that do not affect productivity are necessary.

Original languageEnglish
Title of host publication10th International Conference on Healthy Buildings 2012
Pages2077-2082
Number of pages6
Publication statusPublished - 2012
Externally publishedYes
Event10th International Conference on Healthy Buildings 2012 - Brisbane, QLD, Australia
Duration: 2012 Jul 82012 Jul 12

Publication series

Name10th International Conference on Healthy Buildings 2012
Volume3

Other

Other10th International Conference on Healthy Buildings 2012
CountryAustralia
CityBrisbane, QLD
Period12/7/812/7/12

Keywords

  • Earthquake
  • Electricity
  • Energy Saving
  • Indoor Environment
  • Productivity

ASJC Scopus subject areas

  • Civil and Structural Engineering

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  • Cite this

    Tanabe, S. I., Iwahashi, Y., & Tsushima, S. (2012). Indoor environment and productivity in offices under mandatory electricity savings after the great east Japan earthquake. In 10th International Conference on Healthy Buildings 2012 (pp. 2077-2082). (10th International Conference on Healthy Buildings 2012; Vol. 3).