February 12, 2016
Energy Efficiency and Conservation Division
Agency for Natural Resources and Energy, METI
The final energy consumption in Japan’s residential sector has approximately doubled since the oil shocks, and it accounts for around 15% of all of Japan’s final energy consumption. Meanwhile, in response to a tightening of the electricity supply-demand balance after the Great East Japan Earthquake and the instability of energy prices, the importance of energy conservation in the residential sector has been recognized again.
A ZEH (Net Zero Energy House) is a house that achieves an annual net energy consumption of around zero (or less) by generating energy by means such as photovoltaic power generation, while both a comfortable indoor environment and significant energy conservation are realized at the same time through high heat insulation performance and high energy efficiency improvements in the house. Thus, ZEHs are expected to fundamentally improve the energy supply-demand structure in the residential sector.
As the attention paid to ZEHs increases year by year, house-builders and building contractors are adding ZEHs to their product lineups. In response to such situations, the Ministry of Economy, Trade and Industry (METI) has set the goal of realizing the ZEH concept in a majority of newly-constructed houses constructed by house-builders, building contractors, and other construction companies by 2020. Also, METI released the Report on the ZEH Roadmap in December 2015, which summarized the challenges and measures to achieve this goal.
METI hereby releases a summary that illustrates the contents of the Report on the ZEH Roadmap in an easy-to-understand way. (In Japanese and English)
- Definition of ZEH and future measures proposed by the ZEH Roadmap Examination Committee (in Japanese)
- Definition of ZEH and future measures proposed by the ZEH Roadmap Examination Committee (in English)
Division in Charge
Energy Efficiency and Conservation Division, Energy Conservation and Renewable
Energy Department, Agency for Natural Resources and Energy, METI