Country:Japan
Year:1980
Policy status:In Force
Jurisdiction:National
Date Effective:1980
Date Amended:

1992, 1999, 2013

Policy Type:Regulatory Instruments>Codes and standards
Policy Target:Buildings>Building Type>Residential, Buildings>Building Type>Non-residential, Buildings>Building Type>Industrial
Agency:Ministry of Economy, Trade and Industry (METI), Ministry of Land, Infrastructure, Transport and Tourism (MLIT)
URL:http://www.mlit.go.jp/jutakukentiku/house/jutakukentiku_house_tk4_000010.html
URL:http://www.asiaeec-col.eccj.or.jp/law/ken1_e.html
URL:http://www.mlit.go.jp/jutakukentiku/jutakukentiku_house_tk4_000103.html
Legal References:Energy Saving Standard 1999
Penalty:The reporting obligation includes the concrete energy conservation measurers taken by the targeted construction clients and there is a set of administrative actions including penalty, such as a government instruction, public disclosure, and a fine. These penalties and actions can be executed by the government for the case where the actions and measures are considered as insufficient according to the “Standards of Judgment” under the Energy Conservation Act.
Description:

Energy Conservation Standard for Housing and Building
The energy conservation standards for housing and building were first established in 1980 as a part of the revised Energy Conservation Act. These energy conservation standards are called the “Standard of Judgment” in the Act. The “Standard of Judgment” is a set of regulatory reference standard and the construction clients of housing and building that fall in the designated group under the Act are recommended to use in implementing their energy conservation obligation as mandated by the Energy Conservation Act. The key obligation includes an annual report on energy conservation measures which shall be submitted by regulated construction clients of housing and building to the government. Since the inception, there were several revisions of the standards regarding this sector in 1992, 1999, and 2012. In the Basic Energy Plan published in 2014, the government plans to strengthen these standards for building and housing towards 2020 in a step by step approach.

The Act designates the “Specified Building and Housing” as follows:
Structures on a large scale with a total floor areas of at least 2000m2.

1. Specified Buildings: Small to mid-size structures with a total floor area of at least 300m2. (Office, hotel, hospital, shop, restaurant, school, congregation, factory)

Obligation: Obligations relating to the submission of notifications pertaining to energy conserving measures implemented by construction clients in relation to large scale modifications and obligations relating to reporting the status of overall maintenance.
Owners of the specified buildings are required to notify the following energy saving measures: 1) The measures to prevent heat loss from external walls and windows of buildings. 2) The measures for effective energy use of air conditioners installed in buildings and other building equipment that are specified by the government ordinance.

2. Housing Construction Operator: Business operators who build and sell residential buildings (annually supplying at least 150 units).
Obligation: Obligation to observe targets for improving energy conservation performance of supplied ready built residential housing

In 2013, the amendments were made for housing and building standards as follows:

  • Introduction of indicator for primary energy consumption
  • Amendment of PAL standards for non-residential building
  • Amendment of design and construction guideline for houses

On July 2015 "Act on the improvement of the energy consumption performance of buildings" was newly issued. The purpose of this Act is to improve  energy consumption performance of building. The details are described below.

(1) Measures depending on the size of building

1)Non-residential building of 2,000m2 or more
a. Buildings are to conform with energy consumption performance standard.
b. Buildings should be checked by an approved organization regarding the energy consumption performance

2) Buildings of 300m2 or more
Obligation of notification is imposed. In case the building dose not conform with standard, the government issue instruction and/or order

(2) Display : The owner of the building is approved to display that the building conforms with energy consumption performance after  accreditation by the government

(3) Deregulation of floor area ratio

The buildings in conformity with efficiency standard which is stricter than energy consumption standard, are allowed larger floor area ratio.

(4) Energy consumption performance is stipulated in the following measures. 

1) Heat transmission coefficient of outer walls (ceilings, walls and openings etc.)
2) Primary energy consumption (lightings, air conditioners and water heaters etc.)

Last modified: Thu, 09 Jun 2016 17:15:57 CEST