May, 2003
Japan for Sustainability Newsletter #009
ENERGY DEMAND IN JAPAN
(1) Total energy consumption
Japan's total energy demand increased from 285 million kiloliters (oil
equivalent) in 1973 to 349 million in 1990, then to 405 million in 2000.
The increase is mainly attributed to people's desire for convenience and
affluent lifestyles.
The graph that can be viewed at this government website shows that Japan's
energy demand has been increasing constantly despite ups and downs of
the economic cycle, with only two exceptions (after the two major oil
shocks in the 1973 and 1978):
http://www.enecho.meti.go.jp/topics/energy-in-japan/energy2006Epdf/p34%20_energy2006E.pdf
(2) Energy consumption per unit of GDP
Japan became more efficient, with energy consumption per unit of GDP
dropping from the 100 level in 1973 to around 65 in the 1980s after the
two oil shocks, but this measure increased just slightly since then, to 67 in 2000.
In terms of energy consumption per unit of economic activity, Japan is
among the most energy-efficient countries in the world. The figures for
selected countries shown below represent the total supply of primary
energy (oil equivalent, in million metric tons) divided by gross
domestic product in trillion U.S. dollars (at 1995 prices after foreign
exchange adjustment).
| Japan | 96 |
| Germany | 130 |
| France | 150 |
| UK | 183 |
| Sweden | 191 |
| US | 264 |
| Canada | 365 |
(3) Energy consumption by sector
The breakdown of total energy consumption by sector indicates increases
in the share of consumption in the non-industrial and transport sectors.
| 1973 | 1990 | 2000 |
| Industrial sector | 66% | 53% | 49% |
| Non-industrial sector | 18% | 24% | 27% |
| Transport sector | 16% | 23% | 24% |
The increase of energy consumption in each sector from 1973 to 2000
(1973=100) indicates particularly rapid increases in the household and
passenger transport sectors.
| Industrial sector | 106 |
| Non-industrial sector | 207 |
| Business sector | 189 |
| Household sector | 226 |
| Transport sector | 209 |
| Freight transport sector | 148 |
| Passenger transport sector | 270 |
(4) Energy consumption by energy source in the household sector
The table below shows that the most significant increase has occurred in
electricity consumption (LPG=liquefied petroleum gas).
| 1973 | 1990 | 2000 |
| Electricity | 22.5% | 32.0% | 33.9% |
| Gas | 22.9% | 25.0% | 33.9% |
| LPG | 14.3% | 15.0% | 25.0% |
| Kerosene | 32.8% | 27.0% | 14.1% |
| Coal | 5.0% | 0.1% | 0.0% |
What do people use electricity for at home? According to 1999 statistics,
here is the breakdown:
| Refrigerator | 16.8% |
| Lighting | 15.5% |
| Air-conditioner | 13.2% |
| Room cooler | 10.4% |
| Television | 9.4% |
| Electric carpet | 3.9% |
| Warm water washing toilet | 3.1% |
| Clothes dryer | 2.6% |
| Dish washer/dryer | 1.0% |
Note: Air-conditioner is for heating and cooling, and room cooler is
just for cooling.
Here are some of examples of years when the diffusion rates of household
appliances in Japanese homes reached certain milestones over the years.
(Exceeding 100 percent means more refrigerators than the total number of
households in the country.)
| 1972 | Refrigerators passed 100 percent |
| 1980 | Room coolers passed 50 percent |
| 1984 | Second television passed 50 percent |
| 1987 | Microwave ovens passed 50 percent |
| 1992 | Room coolers passed 100 percent |
With such rapid and extensive growth in the presence of household
electric appliances, coupled with a trend toward the use of bigger
appliances with more features, household electricity consumption has
been increasing rapidly.
(5) Energy consumption in the passenger transport sector
Between 1973 and 1996, the energy consumption by passenger vehicles,
buses and railroads to carry commercial has not changed, but for private
use in passenger cars it has increased by 303 percent, a major cause of
energy consumption increase in the passenger transport sector.
Energy consumption by aircraft has increased threefold between 1973 and
1996, although this category accounts for only about 6 percent of the
passenger transport sector.
The table below shows the percentage of energy consumption and actual
transportation in 1996.
| Energy consumption | Transport |
| Passenger cars | 87.1% | 59.4% |
| Buses | 2.6% | 6.7% |
| Railroads | 3.5% | 28.6% |
Passenger cars use almost 90 percent of the energy for less than 60
percent of all passenger transportation. In contrast, railroads, with
3.5 percent of energy consumption in this category, account for almost
30 percent.
(6) Energy saving policies of the government of Japan 59.4%
The government of Japan has hammered out measures for each of the
greenhouse gases in order to fulfill its commitments under the Kyoto
Protocol to achieve a 6 percent reduction from 1990 emission levels. The
government's "Guidelines for Measures to Prevent Global Warming,"
revised in March 2002, are aimed at containing CO2 emissions from energy
consumption to the 1990 level and establish four pillars of measures and
activities, including energy conservation, new energy, fuel switching,
and the promotion of nuclear power.
In the Guidelines, the main strategy to reduce CO2 emissions on the
energy demand side is to maximize energy conservation. Specifically, for
the non-industrial sector the primary measures include improving the
efficiency of appliances, energy management, and energy conservation of
houses and buildings; in the transport sector the primary measures
include modal shift, efficiency improvements of logistics, and the
promotion of public transportation systems.
According to the Guidelines, the government expects to cut approximately
57 million kiloliters (oil equivalent) of consumption by 2010 by
implementing these measures.
The government policies and specific measures for energy conservation
can be found at the website of Japan's Agency for Natural Resources and Energy:
http://www.enecho.meti.go.jp/policy/index.htm (Japanese)
Also, the Energy Conservation Center, established in 1978, provides
various information, case studies and guidance for factories, buildings,
households, and transport, as well as information on product labels that
indicate energy efficiency. It also offers advice by electronic mail to
promote energy saving activities in various sectors.
http://www.eccj.or.jp/index_e.html
The JFS Information Center has many articles about activities in
transport sector, including the following:
Rail/Bus Corporate Campaign Reduces CO2 Emissions
Better Driving Saves 18,000 Yen in Gas Annually
Ministry of Land, Infrastructure, and Transport Promotes Next-Generation "Eco-Ships"
Sharp Accelerates "Modal Shift"
Oki Reduces Its Distribution CO2 Emissions
Electronic Equipment and IT Companies Reorganize Distribution Systems
Nagoya City to Ban Car Commuting by Public Employees
MLIT Publishes Manual for Environmentally-Responsible Logistics Management Systems
Food Delivery Truck to Collect Vegetable Waste
The government expects that investing in advanced energy-saving
equipment and facilities will foster new economic growth, enabling the
country to pursue objectives in both ecology and economy.
The public is counting on the government to implement a range of
measures to make further progress, and the private sector will probably
continue to try to curb its energy demand in the pursuit of cost
reductions. The JFS Information Center adds new articles every day, many
of them relating to energy. So please check our website regularly!
PAGE TOP
|