The "grid" of smart grid, called the next-generation power grid, refers to the power system in English. The electric power system is a network of electricity that electricity generated at a power station passes from a substation to a power distribution station and reaches to each business place, home, etc. and "smart" means wise. In other words, smart grit is the "smart power system", but the aim is to use information and communication technology that has developed rapidly over the past 20 years.
By efficiently and optimally operate the power system, such as transmission networks and distribution networks, by using the use of electricity smarter as it is said, economy such as energy saving, environmental aspects, the maintenance and improvement of the power quality, and the like.
Therefore, the related business of this smart grit has spread to a variety of businesses not only in the power system of the transmission and distribution network in the past. Related businesses in Japan include energy, IT, and telecommunications industries as a core, distributed power supply-related industries on the supply layer side, consumer electronics, housing, and a wide range of industries, such as automobiles, on the demand side.
While it is not possible to calculate the market size of this smart grit-related domestic market in too many different industries and businesses, the Fuji-keizai is predicting the market by focusing on the market in Japan. According to it, 2011 is 1,122,100,000,000 yen, and has been reading for 20 years with 3,800,800,000,000. Smart grit related technology, as described above, the power transmission system, distribution system, the technology to be adapted by the demand side is different.
According to the "Current state of smart grit technology and roadmap" of "NEDO renewable energy White Paper", the technologies in each field are classified into four different functions.
1) Monitoring and control technology for transmission and distribution systems
2) energy management technology on the demand side
3) advanced technologies that enable effective operation of the system
4) development and expansion of technologies pertaining to advanced Internet technologies
Naturally, it can also be a definite road map of post nuclear power era.
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