Development of smart grid to promote energy structure adjustment

The construction of a smart grid is a common trend in the development of the global power industry. In 2009 , China also officially proposed to build a smart grid that is suitable for China's national conditions. May 21, 2009, the State Grid Corporation announced the first "smart grid" development plan to the public, and to disclose their preliminary construction schedule. According to this plan, the development of smart grids in China will be gradually advanced in three phases. By 2020 , a unified “ strong smart grid ” will be fully established.

Ren Hao-Ning, a researcher in the energy industry of China Investment Advisors, pointed out that accelerating the construction of smart grids will greatly help China's energy structure adjustment and upgrade. First, the smart grid is an indispensable vehicle for the new energy technology revolution. In recent years, the energy issue has become a major bottleneck restricting the progress of human society. It poses a threat to the economic order and energy security of more and more countries. This objectively calls for the diversification and localization of energy products. Solar energy, wind energy, and biomass energy are not only low in environmental cost, but also have the characteristics of localization and diversification. However, the large-scale substitution of fossil fuels by these new energy sources requires the grid to be capable of accepting different grid connection characteristics of various energy sources. Therefore, the development of new energy sources is strongly encouraged. At the same time, we must also accelerate the construction of power grids that are suitable for them.

Second, smart grid is the best way to solve the problem of new energy power grid access. The development areas of domestic wind farms are generally concentrated in remote areas. This is precisely the place where the power grid is relatively weak and has limited capacity. With the active promotion of new energy power generation, public utilities are putting more and more pressure on power distribution, such as management obstacles and financial constraints. The technical challenges are very clear. The old machinery distribution network can no longer meet the needs of new energy development. The development of smart grid will solve the problem of difficulty in accessing new energy to the Internet, which has become the consensus of all countries. At present, China’s smart grid construction has also started. China’s digital grid covers all aspects of power generation, dispatch, power transmission, distribution, and end-users. Is the primary stage of the smart grid.

Finally, building a smart grid is conducive to achieving win-win development for all parties. For power companies, they can achieve energy conservation and emission reductions, reduce power losses during power generation, transmission, and distribution, and reduce energy costs for power companies. It can also improve the utilization rate of enterprise resources and achieve enterprise cost control. For the government, the reduction of power consumption will directly save the country’s energy reserves, and at the same time alleviate the global greenhouse effect caused by carbon dioxide emissions, which is conducive to national environmental protection. At the same time, it can also cooperate with national energy security and strategies to promote the transformation of the energy ecosystem. For consumers, the choices consumers face will be diversified, they can reduce electricity costs, and they can also provide diversified services according to the power companies. Choose the best time and method for using electricity.

The " 2010-2015 China Smart Grid Industry Investment Analysis and Forecast Report" released by China Investment Advisors pointed out that due to differences in national conditions, development stages, and resource distribution, China's smart grid and US smart grid are in the connotation and direction of development. There are obvious " differences " in many aspects such as emphasis. China's smart grid is first and foremost a strong grid. Among them, UHV power grids with long-distance and large-capacity transmission characteristics will become the core link. This is determined by the characteristics of China's economic development stage and the concentrated distribution of energy.

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