According to a survey conducted on zero energy houses in Japan in August 2020, with over ** percent, the majority of custom-built home owners who responded stated that they did not consider the introduction of zero energy houses at all.
Zero energy houses, or zero energy buildings, are buildings that are supposed to have no net energy consumption. The total amount of energy that the building consumes annually should be equal to the amount of renewable energy that is generated on the site.
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Recruit Sumai Company. (November 19, 2020). Consideration status of the introduction of zero energy houses (ZEH) among custom-built home owners in Japan as of August 2020 [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 23, 2026, from /statistics/1221296/japan-consideration-zero-energy-house-introduction/
Recruit Sumai Company. "Consideration status of the introduction of zero energy houses (ZEH) among custom-built home owners in Japan as of August 2020." Chart. November 19, 2020. ÌÇÐÄÆƽâ°æ. Accessed July 23, 2026. /statistics/1221296/japan-consideration-zero-energy-house-introduction/
Recruit Sumai Company. (2020). Consideration status of the introduction of zero energy houses (ZEH) among custom-built home owners in Japan as of August 2020. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 23, 2026. /statistics/1221296/japan-consideration-zero-energy-house-introduction/
Recruit Sumai Company. "Consideration Status of The Introduction of Zero Energy Houses (Zeh) among Custom-built Home Owners in Japan as of August 2020." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 19 Nov 2020, /statistics/1221296/japan-consideration-zero-energy-house-introduction/
Recruit Sumai Company, Consideration status of the introduction of zero energy houses (ZEH) among custom-built home owners in Japan as of August 2020 ÌÇÐÄÆƽâ°æ, /statistics/1221296/japan-consideration-zero-energy-house-introduction/ (last visited July 23, 2026)
Consideration status of the introduction of zero energy houses (ZEH) among custom-built home owners in Japan as of August 2020 [Graph], Recruit Sumai Company, November 19, 2020. [Online]. Available: /statistics/1221296/japan-consideration-zero-energy-house-introduction/
