According to data released by Bloomberg New Energy Finance, global smart grid investment in 2012 increased to 13.9 billion US dollars, an increase of 7%.
In terms of geographical distribution, the smart grid industry shows that the US photovoltaic industry has always been in a leading position, but this "throne" was replaced by China in 2013, which is largely due to the strong willingness of the Chinese government to invest in smart grid technology.
The scale of investment in smart grid technology in the United States reached about 4.3 billion US dollars-its investment in 2011 was 5.1 billion US dollars-while China's investment in smart grid technology increased from 2.8 billion US dollars in 2011 to 3.2 billion US dollars. The large-scale smart meter procurement project of the power grid company has played a big role in promoting it.
With the joining of Japan, India, South Korea and Southeast Asian countries, the total investment in the Asian market has reached 5.6 billion US dollars, far exceeding Europe (from 1.1 billion US dollars to 1.4 billion US dollars) and Latin American countries (400 million US dollars).
Among them, the global investment amount of about 7.1 billion US dollars is invested in the infrastructure cost of smart meters and related services, distribution automation and integrated demonstration projects, and these demonstration projects have characteristics such as demand feedback, home energy management and smart electric vehicle charging. , Which will become the next most popular investment hotspot.
Bloomberg predicts that the global compound annual growth rate of smart grids will reach 10.4% in the next five years, and the global smart grid investment is expected to reach US $ 25.2 billion by 2018.
Chinese policy support
Recently, the State Council officially released the "Twelfth Five-Year Plan for Energy Development" (hereinafter referred to as the "Plan"). The "Plan" makes deployments to promote the construction of smart grids. The carrying and adaptability of energy utilization methods such as energy and electric vehicles, realize the interaction between the power system and customers, promote the upgrade and transformation of all links and elements of the power system, improve the safety level and comprehensive efficiency of the power system, and drive the development of related industries. During the "Twelfth Five-Year Plan" period, several smart grid demonstration areas were built, striving to stay ahead of the world in key technological innovation and equipment R & D.
The benefits of the power grid?
According to the State Grid Corporation of China, State Grid will fully build a strong smart grid by 2020. What will this bring?
It is understood that there is no unified definition of smart grid at home and abroad. But it is not difficult to find the common characteristics of smart grids in various countries: the grid is more interactive, safer, has higher power quality, stronger adaptability, and higher operational efficiency ...
At present, the tension and contradiction of China's coal and electricity transportation still exist, and the "bottleneck" problem of power transmission from Southwestern Hydropower, Inner Mongolia and Northwest China is increasingly prominent. In the view of Liu Zhenya, general manager of State Grid Corporation of China, China urgently needs to build a "strong smart grid" in order to transform the grid development mode and achieve coordinated development of grids at all levels.
Liu Zhenya said that building a strong smart grid and developing UHV is a top priority. UHV can transport energy resources to the destination on a large scale and at a long distance, which is the fundamental solution to the deep-seated contradiction between energy and power development.
According to reports, "Key Technology, Complete Equipment and Engineering Application of UHV AC Transmission" won the special prize of 2012 National Science and Technology Progress Award on the 18th. China is the first and only country in the world to successfully master and actually apply this technology.
The National Power Grid's 2013 work annual meeting recently made a specific deployment of UHV development: it is planned that by 2015, 2017 and 2020, China will build "two vertical two horizontal", "three vertical three horizontal" and "five vertical" The “five horizontal†UHV and “Sanhua†synchronous power grids will be completed with 27 UHV DC projects by 2020.
According to reports, for a strong smart grid, building a distribution network is the foundation. The construction of China's distribution network is lagging, and the problems are accumulating, and it is urgent to accelerate the upgrading and reconstruction to meet the rapid development of urbanization. According to reports, by 2015, the State Grid will basically solve the problem of weak connection between the county grid and the main grid, as well as the "stuck neck" and "low voltage" problems of power supply; by 2020, a modern distribution network with a well-structured, leading technology, efficient interaction, flexibility and reliability will be fully built The reliability rate and voltage qualification rate of power supply in key cities have reached the international advanced level.
"Intelligence is the future development direction of the power grid." Liu Zhenya said that the comprehensive upgrade of the traditional power grid to the smart grid has become inevitable. State Grid will accelerate the research and development of a new generation of intelligent substations, promote line intelligent monitoring systems, intelligent dispatch control systems, and intelligent interactive power equipment, build large-capacity backbone optical communication transmission networks and efficient information business networks throughout all fields, and accelerate all aspects of the power grid The intelligent upgrade and transformation of the whole, comprehensively improve the level of intelligent grid.
State Grid has also set specific targets for building a strong smart grid by 2015 and 2020. According to the target, by 2015, China will build "two vertical and two horizontal" UHV AC and 7 UHV DC. The UHV and cross-region power transmission capacity reached 210 million kilowatts, ensuring the delivery and consumption of 350 million kilowatts of clean energy. Basically solve the problem of electricity consumption by the population without electricity in the business area.
By 2020, China will fully build a strong smart grid. The "Sanhua" UHV synchronous power grid forms the "five vertical and five horizontal" main grid. The size of the power grid more than doubled from 2010. The UHV and cross-regional power transmission capacity reached 450 million kilowatts, ensuring the delivery and consumption of 550 million kilowatts of clean energy. The intelligent level of the power grid is leading in the world, and the dispatching operation of the large power grid has reached the international advanced level.
Imagine: At that time, the power generation terminal can improve the efficiency of power generation and enhance the ability to accept clean energy; the transmission line loss is reduced and the efficiency is improved; the distribution terminal of thousands of households, smart meters can feed back the electricity consumption information to the users, and the people will use electricity Realize intelligent interaction and green energy saving.
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