Journal of Environmental Engineering (Transactions of AIJ)
Online ISSN : 1881-817X
Print ISSN : 1348-0685
ISSN-L : 1348-0685
NET ZERO ENERGY HOUSE RENOVATION OF AN EXISTING APARTMENT FOR ENHANCED LIVING ENVIRONMENT
Momoka WATANABEJungmin KIMMinayo IMAIMizuho AKIMOTOSeiichi KASHIHARAYosuke CHIBANaoya WATANABESaki FUJITOShin-ichi TANABE
Author information
JOURNAL FREE ACCESS

2025 Volume 90 Issue 832 Pages 261-272

Details
Abstract

This study aims to examine the impact of retrofitting an existing low-rise apartment to meet ZEH standards in terms of energy conservation, thermal comfort, and resilience. The retrofitting includes upgrading the insulation from 1980s standards to ZEH standards, modifying the floor plan for better usability of the room, and introducing a photovoltaic (PV) system and battery storage (BT). As a result, the retrofitting contributed to both energy conservation and improved thermal comfort. Furthermore, the introduction of PV and BT supported a stable energy supply during normal conditions and ensured a minimally healthy living environment during power outages.

Content from these authors
© 2025, Architectural Institute of Japan
Previous article
feedback
Top