Business trend:
Consumer
electronics makers and housing companies alike are planning to introduce
products supporting the house energy management system (HEMS) in succession.
According to the government, industrial energy consumption decreased 12%
between 1990 and 2009, but household energy consumption increased 23% in the
same period largely due to growing size of home electronics including TV set.
Toshiba Lighting and Technology launched HEMS-supporting control equipment for
air-conditioners and lighting fixtures. As the government absorbs 100,000 yen
for the purchase of this equipment, the amount consumer needs to pay is around
50,000 yen. The Toshiba group is planning to commercialize the HEMS-supporting
photovoltaic generation system and storage battery in the near future.
Misawa Homes will
put HEMS housing that incorporates its self-developed HEMS-supporting control
equipment on the market soon. Mitsui Fudosan Residential will introduce the
HEMS to the apartment complex it is developing in Tokyo. Both companies employ
the ECHONET that is the communication standard recommended by the Ministry of
Economy, Trade and Industry. Because this standard allows for integrated
control of home electronics regardless of their makers, the market will
supposedly start to grow rapidly after coming October. The spread of the HEMS
will facilitate the growth of the market related to smart house. According to a
survey company, the smart house-related market will grow about three times over
the level in 2011 to 3,500 billion yen in 2020.
Flowchart of the
home energy management system (HEMS)
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