METI / ECCJ / ACE Training Program MTPEC06 (2007.01)

I-3. Transition of Energy Consumption in the Commercial/Residential Sector

Transition of Energy Consumption
in the Commercial/Residential Sector

Energy consumption in the commercial/residential sector surged after the oil crisis and is still growing.
Japan's per-capita energy consumption in the commercial/residential sector is relatively low compared to other major countries, but the difference is narrowing.


(Source) Energy Balance Tables in Japan	Source: Compiled by the Agency for Natural Resources and Energy based on Handbook of Energy & Economic Statistics in Japan data

I-3. Transition of Energy Consumption in the Commercial/Residential Sector

Example of Energy Efficiency Improvement

Transition of the energy-saving performance of CRT television		Transition of the energy-saving performance of air conditioner
	Transition of the performance of 21 inch CRT television		Transition of the performance of heating-and-cooling type wall-mounted air conditioner with a cooling capacity of 2.8 kW (for a 10 tatami-mat room)

Source: Japan Electronics and Information Technology Industries Association		Standard of Japan Refrigeration and Air Conditioning Industry Association Source: JRA4046 (Standard for the calculation of periodic power consumption of room air conditioners)

I-3. Transition of Energy Consumption in the Commercial/Residential Sector

Transition of Per-Household Energy Consumption
and the Number of Households

Energy consumption in the residential sector has made a steady increase due to changes in the social structure (e.g. increase in the number of households), lifestyle changes, and other factors, despite energy efficiency improvements for individual appliances.

Source: Compiled by the Agency for Natural Resources and Energy based on Energy Balance Tables in Japan and Statistics of Population

I-3. Transition of Energy Consumption in the Commercial/Residential Sector

Transition of Floor Space by Type of Business
in the Commercial Sector

Energy consumption in the commercial sector increases with an increase in total floor area of offices, business buildings, etc.
(Floor area and energy consumption increased by 2.2% and 1.6% on an annual average, respectively.)

Source: Handbook of Energy & Economic Statistics in Japan
(Note) The figures in the graph represent each industryfs floor area ratio against the industry total.

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