31 January 2014

Outline of the building energy standard in Japan and evaluation of heat pumps in the standard

Primary energy consumption in the commercial and residential building sectors in Japan represents approximately
34 % of the country’s total energy consumption, and has been increasing steadily. With the aim of decreasing
energy consumption, a new building energy standard was implemented in 2013: the Government has
announced that it will become mandatory by 2020. This article presents an outline of the standard and how energy
performance of heat pumps is evaluated in it.